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Journal articles on the topic 'Methods of utilization waste heat'
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1
Guo, Hai Feng, Wei Li, and Xuan Rui Zhang. "The Designs and Analysis of Wasting Heat Utilization in the Large Comprehensive Hospital Scheme." Applied Mechanics and Materials 587-589 (July 2014): 320–24. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.320.
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In this paper, to achieve waste heat utilization of large-scale comprehensive public study of Shenyang part of large-scale comprehensive hospital, first it has carried on the statistics of hospital waste heat utilization of point, adopting the K - means methods to classify the hospital waste heat utilization point and analyze the waste heat and establish waste heat utilization system .Then four paths of waste heat utilization have been got to get a further hospital waste heat utilization system of waste heat recovery efficiency, optimization study for the future.
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Khlystov, Aleksey, Vladimir Shirokov, and Elena Vlasova. "Specific utilization methods of high-melting wastes from the enterprises of chemistry and non-ferrous metallurgy." MATEC Web of Conferences 196 (2018): 04010. http://dx.doi.org/10.1051/matecconf/201819604010.
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The article provides information on industrial waste generation at enterprises of the Samara region, suitable for use as raw materials components of such heat-resistant composites as solutions, concretes, gun mixes, coatings. The research indicates rational ways of some heat-resistant binders application for utilization of mineral high-melting and heat-resistant industrial wastes. It proves that the enrichment of certain types of industrial waste, i.e. bringing the chemical composition of their components to the required state, allowed to expand the raw material base for the synthesis of heat-resistant binders and concrete in general. The use of sludge waste in the processes of synthesizing liquid phosphate binders allowed to obtain such effective binders as aluminophosphates and aluminocalciumphosphates. The research proves that application of technogenic wastes of non-ferrous metallurgy enterprises allows to receive heat-resistant materials solutions, concretes, coatings, gun mixes which characteristics are similar to their industrial analogues.
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Lukashov, S. V., V. P. Gamazin, and M. V. Khokhlova. "Multidimensionality and Methods for Solving the Problem of Municipal Solid Waste Utilization." Ecology and Industry of Russia 24, no. 7 (July 15, 2020): 18–23. http://dx.doi.org/10.18412/1816-0395-2020-7-18-23.
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The problems of utilization of solid municipal waste are considered, specific methods for its solution are proposed. It was established that one of the main directions of the disposal of solid municipal waste should be considered as their burning. The heat balance of the combustion of wood waste, rubber waste, polymer waste (plastics, tires), agricultural waste. Some specific parameters are determined, such as specific heat of combustion, temperature of complete combustion. It is shown that solid municipal waste should be incinerated using plants for their autothermal processing. The use of the OS 125-1000 series of heating systems as a mobile unit for burning the heating system is justified. The impact of the proposed technology for the disposal of municipal solid waste on the environment is assessed.
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Am, Chaerul Qalbi. "AN OVERVIEW ON UTILIZATION OF NATURAL GAS COMBUSTION FLUE." OISAA Journal of Indonesia Emas 3, no. 1 (January 15, 2020): 5–19. http://dx.doi.org/10.52162/jie.2020.003.01.2.
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A brief overview and comparison of methods to utilize the Natural Gas Combustion Flue stream. An increase in natural gas usage as fuel and its unique combustion characteristics call for specific waste heat optimization methods. Successful natural gas combustion flue waste heat utilization methods exhibit certain phenomenons. From the overview, it is also discovered that the common waste heat method can be applied to natural gas combustion flue, although the specific condition is required. This paper divides the methods into three categories, non-contact heat exchanger, direct-contact heat exchanger, and thermoelectric generations. Discussions on the result and what affects it are present as well as further studies that can be conducted to expand our scope of knowledge of the subject.
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Jin, Hong Wen. "Feasibility Study of Heat Utilization from Waste Oil Wells." Applied Mechanics and Materials 538 (April 2014): 307–10. http://dx.doi.org/10.4028/www.scientific.net/amm.538.307.
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This thesis makes a feasibility analysis of the method and effect of collecting geothermal energy from the waste oil wells, based on which it foresees the economic, environmental and social benefits brought by geothermal energy collection from the waste oil wells. With the advances of technology, geothermal energy collection methods will continue to improve, and bring even greater benefits.
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Du, Tao, Jian Bo Yang, and Hong Lin Zhang. "Thermodynamic Analysis of Sintering Waste Heat Power Generation." Applied Mechanics and Materials 71-78 (July 2011): 2562–65. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2562.
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The current domestic conditions of sintering waste heat generation are introduced. The waste heat utilization methods are given according to waste heat characteristics of 360m2 sintering machine. The particle regenerative heat exchanger model is used to calculate heat transfer area of the first part of the circular-cooler. The logarithmic mean temperature difference method is used to calculate the heat transfer of closed cycle cooling air and the temperature of exhaust gas. The thermodynamic analysis of sintering heat generation process is completed. The power generation efficiency and quantity are calculated by using the heat balance and exergy analysis method.
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Muratova, А. А., and Yu N. Kartushina. "Manufacture of heat-insulating products from solid municipal waste using new waste segregation." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 22, no. 3 (June 29, 2020): 119–31. http://dx.doi.org/10.31675/1607-1859-2020-22-3-119-131.
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The paper considers the improvement of the process conditions for the extraction of high-quality components from solid municipal waste (MSW) for the manufacture of heat-insulating products. A new approach to waste processing with the component extraction is required, and new materials are being sought for heat-insulating products.The purpose of this work is to select the optimum method of MSW segregation, which will be applicable to the morphological composition of wastes in Russia to obtain cleaner raw materials. The main problems of waste segregation are high content of organic waste polluting the components and equipment, low automation and recovery coefficient of waste components due to a single run of waste.The main research methods include a comparative analysis of technological and environmental criteria and labor costs of MSW segregation differing in Russia and abroad.The proposed new method of MSW segregation requires new approaches to the waste use for the production of modern materials. The first problem to be solved is MSW segregation and preparation for further utilization. A search for new, eco-friendly, safe and economically feasible heat-insulating materials is important in the construction field. The proposed method will increase the recovery rate of waste fractions and productivity per unit time.
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Liu, Jian Tao, Xiao Cheng Ma, Kun Kun You, Jian Xing Ren, and Yong Wen Yang. "Analysis on Circulating Water Heat Utilization Technology in Thermal Power Plants." Advanced Materials Research 753-755 (August 2013): 2727–30. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2727.
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The thermal power unit is the major unit in Chinas power supply. Circulating water has large low-temperature waste-heat which can be recycled. The principles of water source heat pump technology is analyzed, characteristic of circulating water system in thermal power unit is studied. Then two kinds of connection methods between circulating water system and water source heat pump (WSHP) are presented.
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Pane, Erlanda Augupta, Hendri Sukma, Arif Riyadi Tatak, and Ismail. "The utilization of solid waste treatment for charcoal making and water heating by continuous incineration." E3S Web of Conferences 67 (2018): 02001. http://dx.doi.org/10.1051/e3sconf/20186702001.
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The utilization of solid waste incineration still has the low percentage, whereas the incineration can add the value of solid waste. This research conducted to analyse of solid waste incineration with methods that classified into two steps that are the analyse of requirement between solid waste and air supply to determine of mass and energy balance, and the pilot scale experiment to analyse the utilization of heat energy from solid waste incineration for charcoal making and water heating. The results show that the 12.5 kg solid waste mass request the 5.78 kg/h combustion rate to produce heat energy up to 134.4 kJ, where can transform 1 kg coconut shell to 500 g charcoal and increase the water temperature from 32°C to 62°C. The research will be continued with analyse of air supply for incineration process temperature increasing, which can determine the combustion rate that influences the heat energy product.
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Zhang, He Fu, Song Zhou, and Zhi Yu Wang. "Research on Vehicle Exhaust Waste Heat Power Generation Technology." Applied Mechanics and Materials 448-453 (October 2013): 2794–98. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2794.
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Vehicle exhaust waste heat utilization can improve automotive vehicle fuel efficiency to optimize energy use and reduce CO2 greenhouse gas emissions to protect the environment. This paper introduces several methods of using engine waste heat, mainly on the Semiconductor thermoelectric power generation technology and the Organic Rankine Cycle power generation technology, and in-depth study on their system structure, principles and key technologies respectively and get important conclusions.
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Cheng, Yonggao, Yanqing Wu, and Siran Bai. "A Smart Community Waste Heat Recovery System Based on Air Source-Sewage Source Compound Heat Pump." International Journal of Heat and Technology 39 (April 30, 2021): 503–11. http://dx.doi.org/10.18280/ijht.390220.
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Compared with the traditional hot water production methods, heat pump systems have the unique advantages of high efficiency, energy saving, and eco-friendly, so they have a very good promotion and application prospect. The sewage source heat pump systems can recover the waste heat of high-temperature sewage produced in residential communities, for this reason, this study integrated the proven air source heat pump technology with the sewage source heat pump technology and conducted a research on the smart community waste heat recovery system based on the air-source/sewage-source Compound Heat Pump system (CHP system). In the paper, the design steps and equipment selection flow of the proposed system were given, the waste heat utilization rate of the proposed system was calculated, and the obtained experimental results verified the energy-saving effect of the proposed system, which had provided a reference for the application of the compound heat pumps in other occasions.
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Shpariy, M. V., P. Y. Shapoval, I. P. Poliuzhyn, S. V. Kolobych, and V. Ye Stadnik. "Composition of ash from combustion and solution of technological problems of chlororganic wastes utilization from direct ethylene chlorination to 1,2- dichlorethane." Chemistry, Technology and Application of Substances 3, no. 2 (November 1, 2020): 17–22. http://dx.doi.org/10.23939/ctas2020.02.017.
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During organochlorine wastes thermal utilization formed at direct chlorination of ethylene to 1,2-dichloroethane in the production of vinyl chloride at Karpatnaftohim LLC, the ash is formed, which clogs gas pipelines and heat exchange elements of the steam generator, causes disruption of normal technological process and leads to emergency shutdowns.The composition of this ash was determined by chemical methods of quantitative analysis and flame photometry for such macrocomponents as Fe2O3 (28%) and FeCl3 (5%), as well as magnesium chlorides (30%) and sodium (4%), the rest (about 32% ) probably resinous highly chlorinated unburned components of VAT residues, carbon particles and nitric acid-insoluble iron compounds. Utilization methods and possible ways to reduce the amount of ash from the organochlorine waste combustion formed at the production of vinyl chloride are briefly considered.
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Pivnyak, Gennadiy, Roman Dychkovskyi, Volodymyr Falshtynskyi, and Edgar Cáceres Cabana. "Energy Efficiency and Economic Aspects of Mining Wastes Utilization within the Closed Cycle of Underground Gas Generator." Advanced Engineering Forum 25 (November 2017): 1–10. http://dx.doi.org/10.4028/www.scientific.net/aef.25.1.
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Energy efficiency of coal gasification with possible utilization of mining wastes within ecologically closed gas generator cycle has been considered. Technical and technological performance of such gas generator and mechanism of material and heat balance on the basis of the available analytical methods and practices as well as the developed author software have been proposed. Heat carrier formed in the process of coal gasification has been used for the utilization. Temperature of the utilization process within the industrially expedient limits being supported with the help of either activation or attenuation of the gasification process. After specific treatment, organogenic waste and domestic wastes are utilized by means of thermal decomposition within a gas generator. Economic evaluation of the proposed means confirms the expediency of their implementation in mines with industrial and balanced coal reserves as well as within the areas where this energetic source has already been already mined out. Results of this investigation were partially presented on international scientific and practical conference “Forum of Miners - 2017”. They contain the researches, which were conducted within the project GP – 489, financed by Ministry of Education and Science of Ukraine.
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Markina, L. M., S. Yu Ushkats, and N. Yu Zholobenko. "DETERMINATION OF THE HAZARD OF PLASTIC WASTE FOR INVESTIGATION OF THE POSSIBILITY OF THEIR UTILIZATION BY THERMAL METHODS." Labour protection problems in Ukraine 37, no. 2 (June 30, 2021): 25–37. http://dx.doi.org/10.36804/nndipbop.37-2.2021.25-37.
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Recently, the production of plastics has increased several times and the demand for plastic materials continues to grow, which leads to an increase in plastic waste, which creates a number of environmental problems, as well as the potential for the waste management industry. The article considers the issues of environmental pollution due to the increase in the amount of plastic waste, their accumulation with an emphasis on various chemicals contained in plastic products to improve the properties of polymers and extend their service life. The qualitative and quantitative composition of additives, such as plasticizers, flame retardants, heat stabilizers, functional additives, dyes and fillers, which may contain heavy metals, halogens, fluorine, tosho. The impact of plastic waste on the environment and the impact on public health have been established, and the ways in which harmful substances enter the environment have been identified. Methods for detecting toxic substances in water, air and soil, and some harmful substances released from plastic products in different conditions are considered.
The release of chemicals into the environment occurs during various processes of plastic waste management, as well as from products made from secondary raw materials. Therefore, the rational collection, transportation, sorting, storage, disposal, disposal and disposal should be carried out in such a way as to exclude the formation and release of harmful substances at every stage, ensuring continuous protection of the environment and human health, such as personnel working at sorting stations or at waste processing plants. The detection of hazardous substances in the environment and waste processing products is recognized, therefore the methodology of ensuring the safety of plastic waste management at all stages is proposed.
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Holubčík, Michal, Alexander Čaja, Jozef Jandačka, and Marián Jobb. "The Energy Potential of Municipal Waste in the Žilina Region." Applied Mechanics and Materials 832 (April 2016): 63–68. http://dx.doi.org/10.4028/www.scientific.net/amm.832.63.
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Waste production is greater every year with society evolution. The same problem is also in Slovak republic, but Slovakia is significantly behind other developed countries in municipal waste management especially in area of energy utilization and recovery of the municipal waste. This problem will be totally reflected after the ban of the waste dumping in landfills. This work solves the problem of waste management in the Žilina region of Slovakia. Žilina region produces approximately 185000 tons of municipal waste. At present there is the majority of the waste dumped in the landfills. Large part of this waste could be energy utilized. Except municipal waste can be also used other types of the waste for the energy utilization. The paper evaluates energy potential of municipal waste in Žilina region. During the work it was determined the ratio composition of the waste in the Žilina region. There were measured gross calorific value, low calorific value and humidity on the waste samples. Based on these results it was determined energy potential of the municipal waste in the Žilina region. This energy potential could provide part of the heat and electricity for the Žilina region after using appropriate methods of thermal disposal.
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Jankes, Goran, Nikola Tanasic, Mirjana Stamenic, and Vuk Adzic. "Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill." Thermal Science 15, no. 3 (2011): 735–47. http://dx.doi.org/10.2298/tsci110609066j.
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Paper production is one of the most energy intensive industrial processes. The use of waste heat is very important for energy efficiency improvement in paper industry. This paper deals with methods for calculation of potentials of waste heat generated in paper/board production process. For that purpose, the material and heat balance of the cardboard machine at Umka Cardboard Mill has been determined. Field measurements were conducted in order to define the unknown values of process parameters used for calculation in the balance equations and modelling. The focus was given to the cardboard drying section, which consumes most of the energy supplied to the machine. Additional aim of the work presented in the paper was to evaluate the specific energy consumption and the thermal efficiency of all individual energy units within the machine?s drying section. The results indicate two main sources of waste heat: waste heat released to the atmosphere with the discharge air from the present waste heat recovery system (14,380 kW); and waste heat released into the hall from the machine and extracted by the hall ventilation system (4,430 kW). Waste heat from both sources is characterized by fairly low temperatures 58-75?? and fairly high moisture content (30-40 g/kg). The waste heat can be partly utilized for preheating the fresh air in cardboard drying process, saving up to 13% of steam consumption. The specific heat consumption and specific steam consumption (consumption per tonne of produced cardboard) of the machine was 1,490 kWh/t and 1.4 t/t, respectively. The thermal efficiency of drying section and coating drying section was 55.6% and 33.6%, respectively. All these figures imply necessity for further waste heat utilization with the aim of improving the efficiency of energy use.
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Loginov, Sergey V., Anatoliy I. Masalevich, Sergey A. Meshkov, and Boris V. Mislavsky. "AN OVERVIEW OF THE METHODS AND EQUIPMENT FOR UTILIZATION OF CROP WASTE. IMPLEMENTATION OF LOW-TEMPERATURE PYROLYSIS AND GASIFICATION IN PILOT AND MOBILE INSTALLATIONS." Bulletin of the Saint Petersburg State Institute of Technology (Technical University) 55 (2020): 75–84. http://dx.doi.org/10.36807/1998-9849-2020-55-81-75-84.
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An analysis of existing methods and equipment for processing and recycling crop waste showed that the main efforts of experimental design and research work in this area are aimed at creating affordable, cheap, environmentally friendly, highly efficient and cost-effective installations for processing waste into products useful for the economy. The developed pilot plant was tested during thermal treatment of rice husks, coffee cake and other plant waste by the method of low-temperature pyrolysis or gasification in a screw reactor. The pilot plant provided the production of useful products of various properties and heat energy for recycling, and it was a prototype for creating a mobile plant with capacity of 100 kg / h for raw materials.
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Volianska, N. "MODELING OF A DOUBLE CIRCULATION RECUPERATOR’S HEAT WORK." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 1, no. 38 (September 8, 2021): 106–15. http://dx.doi.org/10.31319/2519-2884.38.2021.13.
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Utilization of heat from waste products of heat units’ combustion is one of the most important means of saving fuel and energy resources and improving the environmental performance of the enterprise. Improving the design of heat recuperators and increasing their energy efficiency by improving thermal performance is based primarily on the development of new and improvement of existing methods for calculating heat exchangers. In this paper, based on the method of elementary heat balances, a mathematical model of the thermal operation of a double-circulation recuperator is developed. The use of the described mathematical model of recuperator’s heat work makes it possible to analyze its design in terms of energy efficiency, durability, the ability to reduce heat emissions into the environment.
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Tanutrov, Igor N., and Marina N. Sviridova. "Preparation of chemical waste germanium concentrates for disposal." Butlerov Communications 63, no. 8 (August 31, 2020): 73–79. http://dx.doi.org/10.37952/roi-jbc-01/20-63-8-73.
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The composition of waste from chemical processing of germanium concentrates (WCGC) is characterized by the presence of germanium compounds insoluble in acids, as well as significant amounts of toxic impurities. The main phase components are calcium sulfate dihydrate and four-water calcium hypochlorite. Thermographic research on heating samples of WCGC at 200 оС in the air found that their heat treatment is accompanied by two endothermic effects corresponding to two successive stages of dehydration at exposure from the beginning of heat treatment to 30 minutes with the removal of free moisture and from 30 to 90 minutes with the removal of 1.5 water molecules from gypsum and 4 water molecules – from calcium hypochlorite. X-ray phase analysis revealed that the heat-treated samples form calcium sulfate hemihydrate and dehydrated calcium hypochlorite. The presence of these compounds gives a strengthening effect when moistened due to the re-formation of crystallohydpates. In laboratory conditions, options for pelletizing pre-crushed mixtures of heat-treated WCGC and coke using pelletizing and briquetting methods have been tested. The humidity, density, bulk weight and strength of pellets and briquettes for compression and impact were determined immediately after pelletizing, seven-hour exposure and drying at 105 оС. The research results confirm the possibility of obtaining a material suitable for effective utilization of waste from chemical processing of germanium concentrates.
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Alhazmi, Hatem, Syyed Adnan Raheel Shah, Muhammad Kashif Anwar, Ali Raza, Muhammad Kaleem Ullah, and Fahad Iqbal. "Utilization of Polymer Concrete Composites for a Circular Economy: A Comparative Review for Assessment of Recycling and Waste Utilization." Polymers 13, no. 13 (June 29, 2021): 2135. http://dx.doi.org/10.3390/polym13132135.
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Polymer composites have been identified as the most innovative and selective materials known in the 21st century. Presently, polymer concrete composites (PCC) made from industrial or agricultural waste are becoming more popular as the demand for high-strength concrete for various applications is increasing. Polymer concrete composites not only provide high strength properties but also provide specific characteristics, such as high durability, decreased drying shrinkage, reduced permeability, and chemical or heat resistance. This paper provides a detailed review of the utilization of polymer composites in the construction industry based on the circular economy model. This paper provides an updated and detailed report on the effects of polymer composites in concrete as supplementary cementitious materials and a comprehensive analysis of the existing literature on their utilization and the production of polymer composites. A detailed review of a variety of polymers, their qualities, performance, and classification, and various polymer composite production methods is given to select the best polymer composite materials for specific applications. PCCs have become a promising alternative for the reuse of waste materials due to their exceptional performance. Based on the findings of the studies evaluated, it can be concluded that more research is needed to provide a foundation for a regulatory structure for the acceptance of polymer composites.
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Jastrząb, Krzysztof. "Utilization of heat from High Temperature Reactors (HTR) for dry reforming of methane." E3S Web of Conferences 28 (2018): 01016. http://dx.doi.org/10.1051/e3sconf/20182801016.
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One of the methods for utilization of waste carbon dioxide consists in reaction of methane with carbon dioxide, referred to as dry reforming of methane. It is an intensely endothermic catalytic process that takes place at the temperature above 700°C. Reaction of methane with carbon dioxide leads to formation of synthesis gas (syngas) that is a valuable chemical raw material. The energy that is necessary for the process to take place can be sourced from High Temperature Nuclear Reactors (HTR). The completed studies comprises a series of thermodynamic calculations and made it possible to establish optimum conditions for the process and demand for energy from HTR units. The dry reforming of methane needs also a catalytic agent with appropriate activity, therefore the hydrotalcite catalyser with admixture of cerium and nickel, developed at AGH University of Technology seems to be a promising solution. Thus, the researchers from the Institute for Chemical Processing of Coal (IChPW) in Zabrze have developed a methodology for production of the powdery hydrotalcite catalyser and investigated catalytic properties of the granulate obtained. The completed experiments confirmed that the new catalyser demonstrated high activity and is suitable for the process of methane dry reforming. In addition, optimum parameters of the were process (800°C, CO2:CH4 = 3:1) were established as well. Implementation of the technology in question into industrial practice, combined with utilization of HTR heat can be a promising method for management of waste carbon dioxide and may eventually lead to mitigation of the greenhouse effect.
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Liu, Xu Qing, Zhong Li Cai, Ming Xiong Kang, Xuan Liu, and Da Yin Liu. "Study on the Product Structure Optimization of Hot Process Phosphate Based on Comprehensive Utilization of Yellow Phosphorus Tail Gas." Advanced Materials Research 347-353 (October 2011): 2039–43. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2039.
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After desulfurated by electric furnace process, yellow phosphorus tail gas could be used to generate electricity or produce C1 chemical products. Through comparing the restraining factors and feasibility of the above two comprehensive utilization methods, the generation of using yellow phosphorus tail gas is considered as a more advantageous and developing comprehensive utilization way. Moreover this paper recommends a cascade recycling technology which focuses on the generation and recycling heat energy. Based on the above, the downstream products structures of yellow phosphorus can be divided into three kinds, Class A, B and C. Through comparative analysis, Class A is thought to be the best structure that could make the complete recycling of tail gas come true and recycle the waste heat to gain vapor which replaces coal-fired boiler.
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Gubarev, A. V., M. A. Golovkov, D. S. Dyachuk, and S. A. Bychikhin. "Methods and Devices of Heat Wasted Gases Utilization from Stationary Engines of Internal Combustion." Journal of Physics: Conference Series 1066 (August 2018): 012018. http://dx.doi.org/10.1088/1742-6596/1066/1/012018.
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KIRILENKO, Ivan, and Dina TOKARCHUK. "EFFECTIVE ORGANIZATION OF WASTE USE OF AGRICULTURAL ENTERPRISES IN THE FORMATION OF ENERGY AND ENVIRONMENTAL SAFETY." "EСONOMY. FINANСES. MANAGEMENT: Topical issues of science and practical activity", no. 2 (52) (June 26, 2020): 66–83. http://dx.doi.org/10.37128/2411-4413-2020-2-9.
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The article substantiates that the effective use of organic waste for further processing today is a prerequisite for the development of agricultural enterprises, their competitive advantages and ensuring energy and environmental security. The basic principles of enterprise waste disposal are identified, which include: maximum use of on-farm resources, ensuring the economic efficiency of the technologies used, and compliance with veterinary and sanitary requirements. The most common methods for processing organic waste of agricultural enterprises, which include energy and non-energy areas, are investigated. The waste from the plant growing industry can be used for energy purposes in two directions: direct burning in order to obtain heat and electric energy, as well as for the production of solid biofuels. Livestock waste can be used to produce another type of biofuel – biogas. The non-energy direction of the use of organic waste from agricultural enterprises provides the production of secondary products (pulp, paper, cardboard), feed, bedding, compost. It is substantiated that the directions of use of crop waste, which is now preferred by agricultural enterprises, are mainly non-energy (like roughage, litter, as fertilizers) and ineffective (such feed is of little value for highly productive animals, enterprises do not comply with the technology of smelling residues, which minimizes positive effect). Various methods of processing waste products (secondary products) of the livestock industry are analyzed: composting, vermicomposting, composting using gumivit, infusion, and biogas production. A comparison of the economic efficiency of traditional and bioenergy manure utilization at a conditional enterprise is made. It is proved that modern methods of manure utilization with biogas production have advantages because they have an environmental effect, can provide energy autonomy due to the refusal to purchase fuel, electricity, it is possible to increase the efficiency of activities through the sale or own use of biological fertilizers, and the sale of other by-products.
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Nikolaidis, Theoklis, Soheil Jafari, David Bosak, and Pericles Pilidis. "Exchange Rate Analysis for Ultra High Bypass Ratio Geared Turbofan Engines." Applied Sciences 10, no. 21 (November 9, 2020): 7945. http://dx.doi.org/10.3390/app10217945.
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This paper investigates the impact of thermal management methods on the design point and synthesis exchange rates of an ultra-high bypass ratio geared turbofan engine. In a typical thermal management system, where heat is managed by means of heat exchangers that transfer engine waste heat into oil, air, or fuel. However, the utilization of air–oil and fuel–oil heat exchangers has an adverse impact on engine performance. This paper investigates the impact on and engine’s specific fuel consumption and summarizes it into common exchange rates for different thermal management configurations. The results show that any pressure loss in the bypass duct results in a severe specific fuel consumption penalty (an increase of 1% pressure loss in the bypass duct causes a 2% specific fuel consumption increase at cruise conditions). In addition, quite severe is the impact of extracting air from the gas path, particularly when the bleed location is in the bypass duct or the high-pressure compressor. It is also found that the utilization of a fuel–oil heat exchanger improves the specific fuel consumption at a higher rate than an air–oil heat exchanger. For the performance characteristics of the examined engine, the specific fuel consumption benefit with the former is 1.33%, while for the latter it is 0.38%.
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Kılkış, Birol. "Development of an Exergy-Rational Method and Optimum Control Algorithm for the Best Utilization of the Flue Gas Heat in Coal-Fired Power Plant Stacks." Energies 12, no. 4 (February 25, 2019): 760. http://dx.doi.org/10.3390/en12040760.
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Waste heat that is available in the flue gas of power plant stacks is a potential source of useful thermal power. In reclaiming and utilizing this waste heat without compromising plant efficiency, stacks usually need to be equipped with forced-draught fans in order to compensate for the decrease in natural draught while stack gas is cooled. In addition, pumps are used to circulate the heat transfer fluid. All of these parasitic operations require electrical power. Electrical power has unit exergy of almost 1 W/W. On the contrary, the thermal power exergy that is claimed from the low-enthalpy flue gas has much lower unit exergy. Therefore, from an exergetic point of view, the additional electrical exergy that is required to drive pumps and fans must not exceed the thermal exergy claimed. Based on the First-Law of Thermodynamics, the net energy that is saved may be positive with an apparently high coefficient of performance; however, the same generally does not hold true for the Second-Law. This is a matter of determining the optimum amount of heat to be claimed and the most rational method of utilizing this heat for maximum net exergy gain from the process, under variable outdoor conditions and the plant operations. The four main methods were compared. These are (a) electricity generation by thermoelectric generators, electricity generation with an Organic-Rankine Cycle with (b) or without (c) a heat pump, and (d) the direct use of the thermal exergy that is gained in a district energy system. The comparison of these methods shows that exergy-rationality is the best for method (b). A new analytical optimization algorithm and the exergy-based optimum control strategy were developed, which determine the optimum pump flow rate of the heat recovery system and then calculate how much forced-draft fan power is required in the stack at dynamic operating conditions. Robust design metrics were established to maximize the net exergy gain, including an exergy-based coefficient of performance. Parametric studies indicate that the exergetic approach provides a better insight by showing that the amount of heat that can be optimally recovered is much different than the values given by classical economic and energy efficiency considerations. A case study was performed for method (d), which shows that, without any exergy rationality-based control algorithm and design method, the flue gas heat recovery may not be feasible in district energy systems or any other methods of utilization of the heat recovered. The study has implications in the field, since most of the waste heat recovery units in industrial applications, which are designed based on the First-Law of Thermodynamics, result in exergy loss instead of exergy gain, and are therefore responsible for more carbon dioxide emissions. These applications must be retrofitted with new exergy-based controllers for variable speed pumps and fans with optimally selected capacities.
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Zabaniotou, Anastasia, Vicky Skoulou, Georgios Koufodimos, and Zissis Samaras. "Investigation study for technological application of alternative methods for the energy exploitation of biomass/agricultural residues in Northern Greece." Thermal Science 11, no. 3 (2007): 115–23. http://dx.doi.org/10.2298/tsci0703115z.
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Biomass energy potential is addressed to be the most promising among the renewable energy sources, due to its spread and availability worldwide. Apart form that, biomass has the unique advantage among the rest of renewable energy sources, to be able to provide solid, liquid, and gaseous fuels that can be stored, transported, and utilized, far away from the point of origin. For the northern region of Macedonia in Greece, biomass utilization is considered to be a major issue, due to the considerably intensive regional agricultural activities. Wood by-products, fruit cores, rice husk and cotton gin waste provide a promising energy source for the region. The energy potential of the available agricultural biomass produced in the region is much enough to cover the 10% of the annual oil consumption utilized for thermal applications. However, the cost of energy utilization of biomass is considerably high due to the high cost of the logistics concerning the collection, transport, and storage of biomass. The available utilization technologies developed, to handle efficiently all different species of biomass, cover a wide technological range. One of the most promising technologies involving thermal treatment of biomass and the production of a gaseous fuel (biogas) for industrial heat applications and electricity production, is the thermo chemical conversion. In the present work, an investigation concerning biomass potential for energy production in the region of central Macedonia in Greece, utilizing several locally produced biomass species, is conducted. Emphasis is put on the energy utilization of agricultural by-products and residues. Agricultural sector is of great importance due to the considerably intensive agricultural activities in the region of Central Macedonia. .
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Li, Yao, Yu Liu, Fei Fei Shi, Zhi Hong Wang, and Xian Zheng Gong. "Life Cycle Analysis on Carbon Emission Reduction and Energy Saving by Using Slag as Alternative Materials in Cement Production." Materials Science Forum 814 (March 2015): 411–17. http://dx.doi.org/10.4028/www.scientific.net/msf.814.411.
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The carbon emission and energy consumption of using slag as a secondary raw material in cement production was quantified and analyzed in this study. Moreover, the carbon emission reduction and energy saving potential of slag-based cement (SBC) production were identified based on the comparative analysis between SBC and traditional Portland cement (TPC). The results showed that the carbon emission of SBC is about 6.73%, which was lower than that of TPC. Compared with TPC, the energy consumption of SBC is slightly increased by 2.05%. In addition, it was found that the combustion of coal and the power generation were the main sources for carbon emission in the life cycle of slag utilization, which account for 83.39% and 10.16% of the total carbon emission. Therefore, reducing the consumption of energy and increasing the recovery rate of waste heat in cement production were the most effective methods to improve the environmental performance of SBC. In addition, the improvement potential analysis was carried out for SBC. The results indicated that if the recovery rate of waste heat could reach to that of the international advanced level (15.6%), the carbon emission and energy consumption of SBC would be reduced by about 2.20% and 5.71%, respectively. If the proportion of renewable energy utilizationin power generation increased to that of the average international level, the carbon emission and energy consumption of SBC would be declined by 5.26% and 9.35% respectively.
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Shylovych, Tetiana, and Iryna Omelchuk. "Аnalysis of problems of polyethylene utilization in Ukraine and ways to overcome them in the world." Proceedings of the NTUU “Igor Sikorsky KPI”. Series: Chemical engineering, ecology and resource saving, no. 1 (March 30, 2021): 74–81. http://dx.doi.org/10.20535/2617-9741.1.2021.228143.
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Polyethylene is the most widely produced and used plastic in the world and is an integral part of the urban lifestyle of a person. The high demand for PE is given to its mass use as a packaging material due to flexibility, heat and electrical insulation and barrier properties, chemical and thermal stability, ease of processing and, most importantly, accessibility and low cost. More than 35% of all PE produced is used to make the package. Other areas of its application are electronics, mechanical engineering, construction, light industry. Another side of scientific and technological progress is the problem of waste accumulation and its negative impact on the environment and human health. With the development of industry in Ukraine, the amount of waste is growing. Conversely, the amount of recycled, i.e. reused plastic articles, is reduced.
Polyethylene is an ethylene polymerization product and it is hardly naturally occurring. This is non-biodegradable plastic, the decay of which lasts at least 200 years, releasing harmful substances into the environment. To reduce the negative effect of the used polyethylene, it is disposed of by burial or by external exposure to physicochemical or biofactor. Some fungi and bacteria can contribute to the biodegradation of PE by releasing chemicals that can break down long chains of polymers.
The problem of plastic waste accumulation is related to the limited shelf life of many plastic products and the complexity and high cost of plastic recycling processes. Plastic recycling is the process of collecting plastic waste and processing it into useful products. There are several types of PЕ processing processes. This is primary, secondary, tertiary and quaternary processing. Primary processing - reuse of the product, as a rule, for the same purpose. Secondary processing - pellet production. Thermoset polymer cannot be recycled into granules, so they are depolymerized into oligomers by chemical reaction. This is tertiary processing. One of the methods of recycling the polymers is pyrolysis. This is the thermal scheduling process of the organic substances that the polymers consist of. For polyethylene, this temperature is about 450 C. To increase the efficiency of the process, for example, to accelerate it or reduce the temperature in the reactor, a variety of catalysts can be used.
Pyrolysis products depend on the degree of branching of PE, its molecular weight, temperature and type of reactor, catalyst, which is used and is characterized by high quality and environmental safety, since the feedstock does not contain phosphorus, sulfur and nitrogen compounds. The simplest example of recovery (quaternary processing) is the burning of PE. Incineration releases a significant amount of energy from polyethylene, the heat of combustion of which is about 47 MJ/kg. This method is environmentally dangerous because the thermal degradation of PE in the presence of oxygen releases cellular compounds that are dangerous to human health. The cleaning of the combustion gases is expensive, resulting in the lowest economical combustion efficiency among all recycling methods.
Waste reduction can be achieved by introducing a cyclical economy based on the principle of 3-R: Reduce (reducing the use of resources and providing the advantage of renewable materials), Reuse (maximum possible product efficiency), Recycle (recovery of by-products and waste for their reuse). The use of PE waste as alternative materials for urban development programs will reduce gas emissions and fossil fuel consumption. Dematerialization, the use of goods as a service instead of the traditional model of sale, the use of waste from one production as a raw material for another contribute to the reduction of waste volumes too.
An example is the use of PE waste to strengthen the soil in geotechnical schemes of retaining walls, foundations, road foundations, embankments, and slope stabilization. As a result of including strips of polyethylene bags in the soil, soil resistance to landslide increases, bearing capacity and soil subsidence characteristics are improved. Another area is the construction of roads where plastic waste is used to increase the life of roads. The life of roads built from plastic-modified asphalt is growing several times. Such a coating is more resistant to damage, reduces the cost of raw materials and industries, is much safer for the environment than ordinary asphalt. The use of plastic waste instead of specially made additives will help significantly improve the environmental situation in the country.
The best waste reduction strategy in Ukraine is measures to reduce the quantity of materials for the production of plastic products, extend the service life of products by reusing them in order to postpone disposal where possible.
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Taimarov, M. A., and E. G. Chiklyaev. "Development of a direct flow pyrolysis plant for pyrogenetic decomposition of wood." Power engineering: research, equipment, technology 22, no. 6 (March 26, 2021): 68–78. http://dx.doi.org/10.30724/1998-9903-2020-22-6-68-78.
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THE PURPOSE. Consider a renewable energy source. Compare the proposed design with other pyrolysis technologies and make sure that the proposed design will reduce fuel consumption. METHODS. This article proposes the design and technological principle of the process of pyrogenetic wood processing with the production of various compositions of pyrolysis gas and charcoal. RESULTS. The article describes the proposed design, calculates the heat balance for it, and determines the operational parameters of the technological process. CONCLUSION. The main positive difference between the proposed plant design and technology from other pyrolysis technologies is a high level of fuel economy due to heat utilization at intermediate stages of the process. The heat of the cooled charcoa l and the waste products of complete fuel combustion are utilized. The developed design allows reducing fuel consumption, as well as the range of gaseous components obtained as a result of pyrogenetic decomposition of raw wood in a direct -flow pyrolysis plant can be increased.
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Balabak, A. V. "Environmental assessment of the state of municipal solid waste management in the city of Uman." Collected Works of Uman National University of Horticulture 1, no. 98 (June 25, 2021): 104–11. http://dx.doi.org/10.31395/2415-8240-2021-98-1-104-111.
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The study of municipal solid waste management was carried out on the example of the city of Uman, the features of the municipal waste collection were considered. One of the promising utilization methods of the municipal waste organic component is proposed — anaerobic fermentation with subsequent composting of the resulting products. Urban population growth, industrialization, urbanization and economic prosperity lead to an increase in municipal solid waste (MSW). The aim of the work was to consider the characteristics of municipal solid waste management using the example of the city of Uman; inspect the features of collecting municipal waste; consider a separate collection system; identify problems and possible solutions. According to the statistics of Uman city council, 73-75 tons of municipal waste per day are delivered to the landfill. The control is carried out on the composition of the waste entering the landfill. Sorting takes place using a sorting line, which was put into operation in October 2016. Removal of municipal solid waste from the residential sector is carried out according to the schedule. The waste from the private sector of the city is removed during the day. Transportation (transport) of municipal waste is carried out by specially equipped vehicles. On the plots of the private residential sector, the collection of municipal waste is carried out by containerless and container methods. The containerless method is used in those areas of private building, where the possibility of the garbage truck's driving and its maneuvering are limited. Analysis of the current state of municipal solid waste management in the city of Uman showed that the main reasons for the increase in the volume of environmental pollution due to municipal solid waste is the lack of a high-quality management system in the field of MSW management, and especially the outdated waste collection and transportation scheme. The state of MSW management does not meet modern requirements. At the landfill, as a result of the introduction of the technology for the production of biogas from municipal solid waste, it is possible to obtain marketable products — biogas and compost. The city can receive income from the use of biogas as an alternative source of energy for heating buildings or from its consuming by the population. For the city of Uman, the volume of biogas formation at the MSW landfill in 2018 would have amounted to 5,441,280 m3, and in 2019 – 5,424,930 m3.Thus, it is possible to obtain significant volumes of biogas for the production of both heat and electricity. As a result of the study, recommendations were developed to improve the system for collecting municipal waste in the city of Uman. One of the promising utilization methods of the municipal waste organic component in the city of Uman is anaerobic fermentation followed by composting of the resulting products.
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Trunov, Stanislav S., and Aleksey V. Kuzmichev. "Economic Feasibility of Application Semiconductor Heat Pumps." Elektrotekhnologii i elektrooborudovanie v APK, no. 3 (September 20, 2020): 63–66. http://dx.doi.org/10.22314/2658-4859-2020-67-3-63-66.
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Energy consumption around the world is growing continuously and more rapidly. There are three ways to solve the energy problem in the future: the use of new and more efficient use of existing energy sources and the rational use of extracted energy. Modern technologies for developing fuel deposits allow extracting on average no more than 40 percent of the subsurface content, the level of science and technology does not allow achieving a greater level of its extraction with sufficient economic effect. The most cost-effective, simple and feasible way to efficiently use the extracted energy is to utilize the waste heat. The article considers the advantages and possibility of using thermoelectric heat pumps based on Peltier elements. (Research purpose) The research purpose is in justifying the effectiveness of using semiconductor heat pumps in thermal technological processes at livestock facilities. (Materials and methods) During the study, the authors used methods of system analysis and synthesis of existing knowledge in the field of research on the development of thermoelectric heat pumps. (Results and discussion) The article presents the adjusted methodology for calculating the efficiency of thermoelectric heat pumps. The heat energy withdrawn by the hot circuit, and directed to heating the air, exceeds the energy consumed from the electrical network. (Conclusions) The utilization coefficient in most modern thermoelectric installations is at the level of 3-5, which means that one kilowatt-hour of electrical energy consumed produces 3-5 times more thermal energy. Heat pumps are efficient because they allow to use renewable energy, and therefore they are economically feasible.
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Coles, Stephen L. "MARINE MANAGEMENT AND THE SITING OF ELECTRICAL GENERATING STATIONS ON TROPICAL SHORELINES." Marine Research in Indonesia 19 (May 10, 2018): 57–71. http://dx.doi.org/10.14203/mri.v19i0.372.
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Expanding utilization of electricity by developing tropical nations will produce increasing amounts of waste heat that will, in most cases, be disposed into natural water systems. Such disposal represents a serious potential marine management problem for nations which intensively utilize the nearshore marine environment in their subsistence economy. This communication reviews the marine environmental effects resulting from thermal disposal at three generating stations on the Island of Oahu, Hawaii and compares these with results of similar studies made elsewhere in the tropics and subtropics. Conclusions are drawn from these studies concerning desirable environmental features to be considered for thermal outfalls in tropical areas, and some environmental consequences of alternative methods of cooling water treatment are discussed.
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Chen, Kuo Wei, Ching Shun Chen, and Jung Jie Huang. "Optimal Manufacture Formulas for Waste Tire after Pyrolysis and Lightweight Composites after its Combustion Utilization in Sequence through Statically Analyses." Solid State Phenomena 278 (July 2018): 78–81. http://dx.doi.org/10.4028/www.scientific.net/ssp.278.78.
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The present research will be included in molding condition of temperature, pressure etc. in addition to heat of combustion test and improve strength of the Lightweight Composites by the adhesives with waste tire after pyrolysis. The results can serve as a reference to the Waste tire pyrolysis ash Lightweight Composites by production process design. Basically, take extrusion molding technique and sintering, the Lightweight Composites are produced for the ash from the Waste tire pyrolysis after combustion utilization. This study uses the Taguchi Methods to find the best formula, from product performance analysis and process technology manufacturing, The Lightweight composite material meets the expectations of the commercial market, As a reference for future research. This study use three variable, include adhesive, molding temperature, molding pressure .In the choice of adhesive, the study selected chemically modified starch adhesive, Melamine - urea - formaldehyde co - condensation resin, Isocyanate adhesives. This study was learned by Taguchi rule, the best formula for the Isocyanate adhesives, molding temperature at 135°C, molding pressure at 3.5kg/cm2. In the above conditions made by the lightweight composite material, with excellent bending strength and water resistance, In the fire performance on the more traditional wood-plastic board. From the commercial market point of view, the lightweight composite materials not only have the characteristics of fire resistance, good bending resistance, waterproof characteristics. In the material cost, because the processing technology to enhance, effectively reduce manufacturing costs, more commercial market competitiveness.
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Ma, Jing Yi, Xing Yu Chen, and Wei Su. "Environmental Evaluation for Three Typical MSW Incineration Based on Life Cycle Assessment." Advanced Materials Research 850-851 (December 2013): 1360–63. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.1360.
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Garbage incineration is an effective minimization and resource processing methods, but there are no comparative analysises about the environmental impact of incineration processes. To investigate the environmental impacts of three typical MSW incineration processes, we modeled scenarios, calculated energy consumed and six aspects which classified as GWP, ODP, AP, EP, POCP and DUST. The classification results showed the value of the environment impact potential respectively. The impact potential of heat recover-dry absorption processes according to normalized results in descending order is GWP>EP>DUST>AP>POCP>ODP, in contrast the rank of heat recover-wet absorption and semidry processes is GWP>EP>AP>DUST>POCP>ODP, global warming impacts is the most significant penitential factor. The rank of impact potential according to weight factor in descending order is GWP>EP>DUST>AP>ODP>POCP. Dust potential became more significant. The weight factor of Dust is almost twice as much as that of AP. This is because there is a large gap between baseline level and the target level, the solid-waste are the focus of control in these years. In environmental terms, the environmental depletion index of heat recover-dry absorption process is lowest with minimal environmental impact and the heat recover-wet absorption process is the highest with largest environmental impact. The incineration with dry absorption program is the best environment-friendly process in term of environmental impact. Utilization of waste water and reducing total amount of water entering the system can effectively reduce the environmental implication for both HW and HS processes.
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Enç, Volkan, and Musa Kasırga. "Depo Gazı Enerji Üretim Tesisi Baca Gazı Atık Isısının Seralarda Değerlendirilmesi: İstanbul Örneği / Utilization of Waste Heat in Energy Production Plant from Landfill Gas at Greenhouses Case Study in Istanbul." Journal of History Culture and Art Research 1, no. 4 (January 1, 2013): 298. http://dx.doi.org/10.7596/taksad.v1i4.117.
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Evsel atık düzenli depolama sahaları kullanım ömrü dolduktan sonra yararlı kullanım alanları sınırlı sahalardır. Çoğunlukla yeşil alan olarak kullanılan bu yerler ekonomik ve çevresel anlamda atıl durumda bulunmaktadır. Depolama sahalarının İstanbul gibi arazi sıkıntısı çeken bir şehirde yararlı amaçlar için kullanılması elzemdir. Depolama sonrası sahalarda metan gazı oluşmakta ve farklı yöntemlerle kontrol altına alınmaktadır. Bu gazların toplanması, taşınması ve özel motorlarda yakılması ile elektrik enerjisi üretilmektedir. Tesislerde gazın yakılması, depo gazı içerisinde bulunan CH4 (metan) gazının CO2’e indirgenmesini sağlayarak sera etkisini azaltmakta, elektrik enerjisi üreterek ekonomiye katkı sağlamaktadır. Çevresel ve ekonomik yarar göz önüne alındığında, depo gazından enerji üretim tesislerinde, enerji üretiminde mümkün olabilecek maksimum verime ulaşılmalıdır. Bu düşünce ile bakıldığında, depo gazı enerji üretim tesisinde oluşan atık ısının değerlendirilemeden atmosfere verilmesi önemli bir sorun olarak ortaya çıkmaktadır. Oldukça yüksek debi ve sıcaklığa sahip bu ısı, enerji bakımından önemli bir potansiyele sahiptir. Bu sıcaklıktaki ve debideki ısının değerlendirilmeden atmosfere verilmesi, çevreyi olumsuz etkilemesinin yanında ekonomik kayıplara yol açmaktadır. Seralarda mevsimlik çiçek üretimi, maliyeti yüksek bir faaliyettir. Maliyetlerin önemli bir kısmını sera ısıtılması ve gübre kullanımı oluşturmaktadır. Isıtma işlemi için Türkiye’nin büyük bir bölümünde kömür ve doğalgaz kullanılmaktadır. Kışın seraların ısıtılması için kullanılan fosil yakıtların hem maliyeti yüksek, hem de çevresel standardı düşüktür. Bu çalışma, İstanbul Kalkınma Ajansı (İSTKA) tarafından desteklenen Depo Gazı Enerji Üretim Tesisi Atık Isının ve Kompostun Seralarda Kullanımı Projesi kapsamında yürütülmüştür. Bu kapsamda; çevre, tarım ve enerji sektörü için, atık ısı ve atık maddelerin değerlendirilmesini içeren çevresel ve ekonomik açıdan sürdürülebilir eko yenilikçi bir sistemin oluşturulması amaçlanmıştır. Bu çalışmada İBB Odayeri Düzenli Depolama Sahasında depo gazından elektrik enerjisi üretim tesisinden çıkan baca gazının değerlendirilmesine ve mevsimlik çiçek üretim serasının kurulmasına ilişkin süreçler yer almaktadır. Kurulması düşünülen seranın ısıl hesaplamaları yapılmıştır. Yapımda kullanılacak her malzemenin sebep olduğu ısı kayıpları ve hacim kaynaklı hava değişimine bağlı ısıl kayıplar göz önüne alınarak gerekli ısı miktarı belirlenmiştir. Depo Gazı Enerji Üretim Tesisinden elektrik üretim faaliyeti sonucu egzoz gazı atmosfere verilmektedir. Bu gazın değerlendirilmesi için baca gazı emisyon ölçümü ve analizi yapılmıştır. Analiz sonuçlarına göre yaklaşık 470 °C sıcaklıktaki gazın geri kazanımı için gerekli ısıl hesaplamalar yapılmıştır. Egzoz gazının emisyon ölçümü için CO, CO2, O2, SO2, NO, NO2 ve NOx Tayini Elektrokimyasal Hücre Metodu ile, Bacada Hız ve Debi Tayini ise S Tipi Pitot Tüpü ile gerçekleştirilmiştir. Bacalarda oluşan atık ısının kullanımı için sistem alternatifleri araştırılmıştır. Proje ile ilgili olarak hava-su ısı değiştiriciler incelenmiştir. Analiz sonuçları ve seranın ihtiyacı olan enerji miktarına göre ekonomizer ya da eşanjör ölçüleri hesaplanmış, malzeme çeşidi tespit edilmiş, sistemin dizaynı ve imalatı yapılmıştır. Atık ısı geri kazanım ünitesinde ısıtılan su, pompalar vasıtasıyla seraya iletilecektir. Isı İletim sistemi ısı kayıpları minimuma düşürecek şekilde dizayn edilecek, sera içinde bulunan otomasyon sistemi vasıtasıyla ihtiyaç duyulan zaman dilimlerinde seraya sıcak su beslemesi yapılacaktır. Odayeri Düzenli Depolama Sahasında uygun alan tespiti ve yetiştirilecek ürün tespiti yapıldıktan sonra sera kurulumuna geçilmiştir. Seralarda yetiştirilecek ürünler için uygun koşulların sağlanması için iklimlendirme, sulama ve gübreleme sistemi dizayn edilmiş ve sistemlerin tamamı tam otomasyonlu yapılmıştır. Depo gazı Enerji Üretim Tesisinde depo gazı yakılarak elektrik enerjisi üretiminde kullanılmakta, çok yüksek sıcaklıkta baca gazı atmosfere verilmektedir. Bu gazın değerlendirilmesinin önemli ekonomik faydalar sağlayacağı tespit edilmiştir. Seracılık, ülkemizde ve dünyada önemli bir tarım faaliyeti olmakta ve bu sürecin gelişimde ısıtma maliyeti önemli bir kısıt olarak karşımıza çıkmaktadır. Ülkemizde ısıtmaya bağlı olarak seracılık sıcak iklim bölgelerinde ve jeotermal enerjiye sahip bölgelerde yapılabilmektedir. Kış ısıtması genel itibari ile yetersiz kalmakta ya da hiç yapılamamaktadır. Proje sonucunda ortaya konan sistem, atık yönetiminin önemli sıkıntılarına çözümler getirmektedir. Belediyeler ve çok farklı sektörlerden işletmeler için problem teşkil eden atıl durumdaki depolama sahaları, değerlendirilemeyen atık ısı, seracılık alan sıkıntısı, sera ısıtma giderleri ve işsizlik gibi konular proje sayesinde bütüncül bir şekilde ele alınmıştır. Utilization of Waste Heat in Energy Production Plant from Landfill Gas at Greenhouses Case Study in Istanbul After the lifetime of regular landfill ended, the rest of useful field becomes very limited. This areas used for green field are inactive in terms of environmental respect. The usage of the storage fields is critical for Istanbul where the empty lands are limited. Methane comes out from landfill and is controlled with different methods. Electricity is generated after the process of collecting, transferring, and burning of methane gas. Consuming methane gas in the plants leads to reduce the amount of greenhouse gases by conversion of methane to carbon dioxide, and increase economic benefits by energy generation. Considering the environmental and economic benefits, maximum efficiency of the production plant should be aimed. Therefore, exposition of waste heat created in the plant to air is a serious problem. This high capacity heat has a potential. Otherwise, it will cause environmental problems in addition to economical lose. Seasonal flower raise in greenhouse is a high cost business. The biggest portion of this cost is caused by heating and use of fertilizer. Coal and natural gas are used to heat the greenhouses. Fossil fuels used for this goal are costly and not environmentally friendly. This work is involved in the project of Use of waste heat produced at energy production plant in greenhouses supported by the Istanbul Development Agency. Goal of this project is to create a system that has environmental and economic benefits based on the utilization of waste material and heat in agriculture and energy sectors. In this project, the process of utilization of waste gas emerged in the IBB Odayeri Landfill, and establishment of seasonal flower greenhouses. Heat calculations of proposed greenhouse have been performed. The required amount of heat has been determined considering the heat loss of each material, and volume based heat loss caused by air change. Flue Gas emission has been as a result of electricity generation from landfill gas. Flue Gas emission measurement and analysis are done for the evaluation of landfill gas. Thermal calculations for the recovery of gas at 470 ° C are done. Exhaust gas emissions of CO, CO2, O2, SO2, NO, NO2 and NOx are determined with Electrochemical Cell Method while Speed and Flow Determination in chimney was carried out with the S-Type Pitot Tube Method. System alternatives for the use of the waste heat from chimneys and Air-water heat exchangers are investigated. Economizer, heat exchanger dimensions and material types are determined by considering the results of the analysis and the amount of the energy needed. Water which is heated by waste heat recovery unit will be delivered to the greenhouse by pumps. Heat transmission system designed to minimize the heat losses. The optimal hot water supply will be provided by the automation system in the greenhouse. After identification of product which will be grown and installation area of the hothouse, the installation has started. Fully automated air conditioning, irrigation and fertilization system have been designed to ensure the proper conditions for products proposed to grown in greenhouse. High temperature flue gas emission is provided from Landfill Gas Energy Production Plant. Significant economic benefits will be gained with evaluation of this gas. Greenhouses, in our country and around the world become an important agricultural activity and heating costs appears to be the biggest constraint for the development of this sector. Considering the heating process greenhouse are installed in geothermal areas and hot climate regions of our country. In winter heating generally inadequate or cannot be done at all. This project brings many solutions for the waste management problems. Unused landfill areas, unvalued waste heat, greenhouse area shortages, and unemployment issues of municipalities and businesses are discussed in a holistic manner in this project.
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Joseph, Collin G., Yun Hin Taufiq-Yap, Vigneswar Krishnan, and Gianluca Li Puma. "Application of modified red mud in environmentally-benign applications: A review paper." Environmental Engineering Research 25, no. 6 (November 21, 2019): 795–806. http://dx.doi.org/10.4491/eer.2019.374.
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Red mud (RM) is a waste product that results from bauxite refining via the Bayer process. Its disposal remains an issue which raises significant environmental concerns, particularly if disposed on land or water bodies. Much research has been done on the use of red mud for environmentally-benign applications such as wastewater treatment, catalysis, the production of construction materials and glass ceramics, and for the recovery of metals. This paper reviews the current efforts made in the utilization of red mud as a valuable industrial by-product, which in turn should minimize its harmful impact on the environment. This detailed review compiles and highlights a variety of novel applications of modified red mud as a coagulant, an adsorbent for wastewater treatment, as well as, its use in catalytic processes and in building materials. The physico-chemical properties of red mud can be tuned by a range of treatment methods include acidification, neutralization and heat treatment. As revealed from the literature reviewed, modifications on red mud for the removal of various types of contaminants have shown promising results. However, further amendment and modifications on red mud are needed to utilize this industrial waste in many other industrial applications.
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WU, YEONG-JEN, and WEI-HSIANG LAI. "SIMULATION OF PIEZOELECTRIC JELLYFISH POWER GENERATOR." Modern Physics Letters B 24, no. 13 (May 30, 2010): 1325–28. http://dx.doi.org/10.1142/s0217984910023530.
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The energy problem is getting increasingly serious. As such, unused energy recovery technology is crucial for environmental protection, which has been investigated extensively. Several methods have been developed to utilize scavenged energy from the environment, such as waste heat, solar energy, wind energy, and tides energy to convert into useful power. There is a new idea of piezoelectric jellyfish generator which combines the utilization of sea wave and vibration energy. When sea wave passes through the jellyfish, the wave causes the tentacles to vibrate. The tentacles is made of piezoelectric polymer which can convert the strain energy into electrical energy. This paper discusses about the piezoelectric jellyfish's tentacles being disturbed by wave in the sea. We employed the commercial CFD software CFD-ACE+ 2006 to simulate this phenomenon. The parameters including its tentacle length (L) and wave propagating function (Y) are studied which affect the piezoelectric jellyfish capacity to generate power.
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Panganoron, Harold O., Jethro Daniel A. Pascasio, Eugene A. Esparcia, Julie Anne D. del Rosario, and Joey D. Ocon. "Hydrothermally Carbonized Waste Biomass as Electrocatalyst Support for α-MnO2 in Oxygen Reduction Reaction." Catalysts 10, no. 2 (February 3, 2020): 177. http://dx.doi.org/10.3390/catal10020177.
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Sluggish kinetics in oxygen reduction reaction (ORR) requires low-cost and highly durable electrocatalysts ideally produced from facile methods. In this work, we explored the conversion and utilization of waste biomass as potential carbon support for α-MnO2 catalyst in enhancing its ORR performance. Carbon supports were derived from different waste biomass via hydrothermal carbonization (HTC) at different temperature and duration, followed by KOH activation and subsequent heat treatment. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX) and X-Ray diffraction (XRD) were used for morphological, chemical, and structural characterization, which revealed porous and amorphous carbon supports for α-MnO2. Electrochemical studies on ORR activity suggest that carbon-supported α-MnO2 derived from HTC of corncobs at 250 °C for 12 h (CCAC + MnO2 250-12) gives the highest limiting current density and lowest overpotential among the synthesized carbon-supported catalysts. Moreover, CCAC + MnO2 250-12 facilitates ORR through a 4-e‑ pathway, and exhibits higher stability compared to VC + MnO2 (Vulcan XC-72) and 20% Pt/C. The synthesis conditions preserve oxygen functional groups and form porous structures in corncobs, which resulted in a highly stable catalyst. Thus, this work provides a new and cost-effective method of deriving carbon support from biomass that can enhance the activity of α-MnO2 towards ORR.
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Wang, Ya-Jun, Ya-Nan Zeng, Jun-Guo Li, and Yu-Zhu Zhang. "Cementitious Behavior of Argon Oxygen Decarburization Stainless Steel Slag and Its Stabilization on Chromium." Crystals 10, no. 10 (September 27, 2020): 876. http://dx.doi.org/10.3390/cryst10100876.
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The study mainly aims at the potential of Argon Oxygen Decarburization Slag (AODS) as a supplementary cementitious material and explores the mechanisms of stabilization/solidification (S/S) of chromium in cement-based composite pastes. The basic cementitious parameters, such as water requirement, setting time, soundness, hydration characteristics, and strength indexes of composite binders, were examined through standard methods. The results showed that the most beneficial mineral phase in AODS for cementitious behavior was beta dicalcium silicate (β-C2S). The utilization of a higher AODS dosage in composite binders increased the water requirement and the setting time, while it decreased the hydration heat and the strength indexes. Although the AODS possessed limited cementitious properties, it conformed the Grade II steel slag powder qualified for concrete and cement. Sequential leaching tests were conducted targeting the leachability of chromium in the pastes with different AODS dosage and curing time. Results showed that with the lower AODS dosage and the longer curing time, the S/S efficiency for chromium leaching from the composite paste was better. Utilization of AODS as a cement substitute not only can recycle this solid waste and decrease the emission of CO2 concerning cement production, but also helps to effectively reduce the chromium leaching risk.
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Thombre, Mandar, Zawadi Mdoe, and Johannes Jäschke. "Data-Driven Robust Optimal Operation of Thermal Energy Storage in Industrial Clusters." Processes 8, no. 2 (February 5, 2020): 194. http://dx.doi.org/10.3390/pr8020194.
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Industrial waste heat recovery is an attractive option having the simultaneous benefits of reducing energy costs as well as carbon emissions. In this context, thermal energy storage can be used along with an optimal operation strategy like model predictive control (MPC) to realize significant energy savings. However, conventional control methods offer little robustness against uncertainty in terms of daily operation, where supply and demand of energy in the cluster can vary significantly from their predicted profiles. A major concern is that ignoring the uncertainties in the system may lead to the system violating critical constraints that affect the quality of the end-product of the participating processes. To this end, we present a method to make optimal energy storage and discharge decisions, while rigorously handling this uncertainty. We employ multivariate data analysis on historical industrial data to implement a multistage nonlinear MPC scheme based on a scenario-tree formulation, where the economic objective is to minimize energy costs. Principal component analysis (PCA) is used to detect outliers in the industrial data on heat profiles, and to select appropriate scenarios for building the scenario-tree in the multistage MPC formulation. The results show that this data-driven robust MPC approach is successfully able to keep the system from violating any operating constraints. The solutions obtained are not overly conservative, even in the presence of significant deviations between the predicted and actual heat profiles. This leads to an energy-efficient utilization of the storage unit, benefiting all the stakeholders involved in heat-exchange in the cluster.
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Subbotina, Yu M. "MICROBIOLOGICAL AND BIOCENOTIC UTILIZATION OF BIRD DROPPINGS BY NATURAL BIOCENOSES." Problems of Veterinary Sanitation, Hygiene and Ecology 1, no. 3 (2020): 341–50. http://dx.doi.org/10.36871/vet.san.hyg.ecol.202003009.
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The problem of waste disposal of poultry production is considered. The properties of bird droppings are analyzed, depending on the condition and feeding of the bird. The morphological composition of poultry manure is given, and the value of 1 ton of bird droppings to mineral fertilizer is compared. Bird droppings has a feature – a narrow ratio of carbon and nitrogen, that’s why the litter is mineralized much faster by the soil microflora. It is also emphasized that wrong storage of bird droppings leads to loss of nitrogen, which can reach 50%. Various technologies for disposing of droppings by microorganisms are considered, using the California worm and housefly larvae. Bioenergetic methods of litter utilization are analyzed in detail. The article comprehensively examines the processes of anaerobic fermentation of manure and the production of biogas-methane, notes the dependence of biogas formation on temperature, and emphasizes that mesophyll and psychophile bacteria participate in the formation of biogas. Then the biogas is used to generate electricity and heat the premises. In addition to thermo and mesophilic fermentation, the disposal of bird droppings using vermiculture and red housefly is considered. The positive aspects of these technologies are described, namely, the production of biohumus, which binds and neutralizes heavy metals, in the process of utilization, phytohormones are produced by microflora, being used in crop production, they accelerate the growth of plants by 4-6 times, help to resist diseases and pests of agricultural crops. The article notes the high effect of using the larvae of the house fly (Musca domestica L), which was thoroughly tested by the Federal Science Center of Animal Husbandry under the guidance of academician L.K. Ernst. The high efficiency of using fly larvae is emphasized, where scientists note that in addition to the membrane and intracellular mechanism of digestion, induced autolysis is added (joint digestion of food by the "host" and "victim" enzymes in the host's gastrointestinal tract). Specialists get chitin and chitosin of high quality from fly larvae. Derivatives of these compounds are used in the food, perfume, pharmaceutical, and medical industries, moreover, chitosin is the polymer of the future. It increases the resistance of animals to infectious diseases by 10-15 %.
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Gabajová, Gabriela, Martin Krajčovič, Marián Matys, Beáta Furmannová, and Natália Burganová. "DESIGNING VIRTUAL WORKPLACE USING UNITY 3D GAME ENGINE." Acta Tecnología 7, no. 1 (March 31, 2021): 35–39. http://dx.doi.org/10.22306/atec.v7i1.101.
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Designing a workplace may be a challenging task. It is important to make sure that the new workplace will prevent unnecessary resource waste, but also create a safe working environment for employees. Therefore, creating a virtual copy of the workplace before its real-life implementation may help to eliminate design shortcomings. This article presents a methodology of creating a virtual workplace using a game engine – Unity 3D. The methodology describes basic principles and methods used for the creation of virtual workplace, from initial analysis to utilization. The user then can use a VR head-mounted device to see small details and possible shortcomings. Effectiveness of methodology was then evaluated by using it to visualize a bar-processing workplace.
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Nurmukhametova, Anna N. "Carbon fiber. Obtaining, modification, properties, applications." Butlerov Communications 62, no. 5 (May 31, 2020): 1–42. http://dx.doi.org/10.37952/roi-jbc-01/20-62-5-1.
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The main methods for producing a polyacrylonitrile precursor, methods for producing carbon fiber, its properties, and applications are presented. Patent research in the field of polyacrylonitrile precursor and carbon fiber. Technological problems in the subject area are identified, namely the development of technologies and equipment for producing high-strength carbon fiber, the development of technologies and equipment to reduce the cost of carbon fiber production, the development of technologies for improving the quality of carbon fiber-based composites, and the main ways to solve them are given. Ways to solve them are developing a technology for producing a polyacrylonitrile precursor for producing high-strength carbon fibers by the wet spinning method, developing a “dry-wet” method for producing polyacrylonitrile, developing high-performance equipment for producing technical polyacrylonitrile precursor in the form of bundles, developing technologies and equipment for efficient regeneration and utilization waste, heat and emissions from the production of carbon fibers, the development of new compositions of precursors and the transition to materials with a higher linear density, optimization of the structure of carbon fiber reinforced plastic to increase strength, the development of technologies and the creation of production of modern types of binders, including the addition of nanoparticles. The main methods for modifying the surface of a carbon fiber that are currently existing are considered.
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Abanades, Stéphane, Sylvain Rodat, and Houssame Boujjat. "Solar Thermochemical Green Fuels Production: A Review of Biomass Pyro-Gasification, Solar Reactor Concepts and Modelling Methods." Energies 14, no. 5 (March 9, 2021): 1494. http://dx.doi.org/10.3390/en14051494.
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This paper addresses the solar thermochemical conversion of biomass or waste feedstocks based on pyro-gasification for the clean production of high-value and energy-intensive fuels. The utilization of solar energy for supplying the required process heat is attractive to lower the dependence of gasification processes on conventional energy resources and to reduce emissions of CO2 and other pollutants for the production of high-value chemical synthetic fuels (syngas). Using concentrated solar energy to drive the endothermal reactions further allows producing more syngas with a higher gas quality, since it has not been contaminated by combustion products, while saving biomass resources. The solar-driven process is thus a sustainable and promising alternative route, enabling syngas yield enhancement and CO2 mitigation, thereby potentially outperforming the performance of conventional processes for syngas production. This review presents relevant research studies in the field and provides the scientific/technical knowledge and background necessary to address the different aspects of the solar gasification process. An overview of the available solar concentrating technologies and their performance metrics is first introduced. The solar gasifier concepts and designs that were studied from lab to industrial scale are presented, along with their main benefits and limitations. The different management strategies proposed to deal with solar energy variations are also outlined, as well as the major pilot-scale applications and large-scale system level simulations. A specific emphasis is provided on the spouted bed technology that appears promising for the gasification process. Finally, the main modeling approaches of pyro-gasification and kinetics for simulation of gasifiers are described. This study thus provides a detailed overview of the efforts made to enhance the thermochemical performance of solar-assisted biomass gasification for synthetic fuel production.
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Babus'Haq, Ramiz, and S. Douglas Probert. "Waste heat utilization." Applied Energy 38, no. 2 (January 1991): 160–62. http://dx.doi.org/10.1016/0306-2619(91)90077-b.
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Radko, V. "Economic aspects of energy efficiency in Ukrainian agricultural enterprises` dairy farming." Ekonomìka ta upravlìnnâ APK, no. 1 (148) (May 30, 2019): 65–75. http://dx.doi.org/10.33245/2310-9262-2019-148-1-65-75.
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It was established that material and technical support of milk production process in agricultural enterprises is an important reserve for increasing economic stability on the basis of creation of high-tech and energy-efficient production management system. The directions of innovative provision of technological processes in dairy farming are outlined: forage conservation; keeping and feeding animals; creation of farms with waste heat utilization, mechanized feeding, milking, waste management (robotic farms); computerization of milk production accounting processes and the prediction of the genetic value of animals; milk quality control by means of electronic means for testing of fat and protein content in milk; systems of cooling and milk storage. It has been proved that energy expenditure in dairy farming depends on a large number of factors, in particular the methods of keeping farm animals and their productivity, the level of mechanization and automation of technological processes on the farm, etc. It is established that in determining the energy costs, energy expenditure is taken into account only for individual, often final, technological operations, resulting in an assessment of the efficiency of milk production that is incomplete, which does not allow to objectively determine the efficiency of technological solutions. Summarizing the aforementioned, it will be grounded that the reduction of energy consumption in the milk production is possible not only on the basis of technical re-equipment of equipment, reconstruction and replacement on the new, but also due to the formation of rational consumer behavior and the development of a sound management policy for the use of energy resources at all stages of production dairy products. It is proposed to create at the agricultural enterprises an appropriate unit for ensuring energy efficiency and the appointment of a manager. Moreover, the responsibility of the manager should be clearly regulated and controlled by the business owners to fulfill all the requirements of energy saving, which should result in the reduction of energy consumption. It is proved that the reduction of energy consumption for milk production is achieved on the basis of providing the microclimate by utilizing the heat that is in the air and is removed from the premises. Key words: dairy farming, agricultural enterprise, energy efficiency, energy resources, energy management.
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Kanagaraj, N., Hegazy Rezk, and Mohamed R. Gomaa. "A Variable Fractional Order Fuzzy Logic Control Based MPPT Technique for Improving Energy Conversion Efficiency of Thermoelectric Power Generator." Energies 13, no. 17 (September 1, 2020): 4531. http://dx.doi.org/10.3390/en13174531.
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Thermoelectric generation technology is considered to be one of the viable methods to convert waste heat energy directly into electricity. The utilization of this technology has been impeded due to low energy conversion efficiency. This paper aims to improve the energy conversion efficiency of the thermoelectric generator (TEG) model with a novel maximum power point tracking (MPPT) technique. A variable fractional order fuzzy logic controller (VFOFLC)-based MPPT technique is proposed in the present work in which the operating point of the TEG is moved quickly towards an optimal position to increase the energy harvesting. The fraction order term α, introduced in the MPPT algorithm, will expand or contract the input domain of the fuzzy logic controller (FLC to shorten the tracking time and maintain a steady-state output around the maximum power point (MPP). The performance of the proposed MPPT technique was verified with the TEG model by simulation using MATLAB /SIMULINK software. Then, the overall performance of the VFOFLC-based MPPT technique was analyzed and compared with Perturb and observe (P&O) and incremental resistance (INR)-based MPPT techniques. The obtained results confirm that the proposed MPPT technique can improve the energy conversion efficiency of the TEG by harvesting the maximum power within a shorter time and maintaining a steady-state output when compared to other techniques.
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Kumar, Awinash, and Pradip Lingfa. "Physico-chemical Characterization of Hydrochloric Acid-treated Kaolin Clay: An Industry Approach as a Potential Catalyst." Combinatorial Chemistry & High Throughput Screening 23, no. 3 (May 19, 2020): 205–13. http://dx.doi.org/10.2174/1386207323666200219123459.
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Aim and Objective: This study explains the FT-IR, XRD, XRF, SEM/EDX, TGA, and DSC/DTA characterization of commercially available kaolin clay. The objective of this paper is to explore the prominent utilization of kandites clay and useful chemical aspects for the modification of kaolin clay minerals. Materials and Methods: The untreated kaolin sample has been procured in this experimental work from AksharChem, Gujrat, India. The kaolin clay was treated with 4M hydrochloric acid. FT-IR, XRD, XRF, SEM/EDX, TGA, and DSC/DTA characterization methods have been used. Results: Loss on ignition was found at 10.89%. The fingerprint region of the acid-treated sample has broad and more bending vibrations than untreated samples. The high weight percentage of Ti and CaCO3 were spotted in the scanning electron micrograph by both atomic % and weight %. The FT-IR revealed the functional group of Al-O, A1-OH, and Si-O. Conclusion: The morphology indicates that the presences of large particles are in the form of agglomerates. It was found that impurity like scandium vanished and manganese traced by the same atomic % 0.01 of zinc which had no presence after acid treatment. Thermogravimetric analysis indicates the sharp increments in heat flow in-between temperatures 0°C to 200°C and consequently increments in between 500°C to 550°C, a suitable range for the pyrolysis. Low amount of alumina and high amount of silica has been found out. TGA and DTA analysis satisfy the waste plastic valorization temperature ranges.
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Коновалов, Дмитро Вікторович, and Галина Олександрівна Кобалава. "ПРОМІЖНЕ ОХОЛОДЖЕННЯ ЦИКЛОВОГО ПОВІТРЯ В ГАЗОТУРБІННИХ УСТАНОВКАХ АЕРОТЕРМОПРЕСОРАМИ." Aerospace technic and technology, no. 1 (February 25, 2018): 29–36. http://dx.doi.org/10.32620/aktt.2018.1.02.
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Existing technologies to improve the fuel and energy efficiency of gas turbine plants due to intercooling of the cycle air are analyzed. One of the promising ways for increasing the efficiency of such technologies is using thermogasdynamic compression in the heat recovery processes of secondary energy resources. A feature of this process is the pressure rate increase due to the instant evaporation of a finely dispersed liquid is injected into the air stream which accelerated to the speed of sound. When the pressure of the boiling liquid is increased, the power consumption for compressing the working fluid (cyclic air) is reduced, the efficiency is increased and the consumption of the fuel and energy resources of the gas turbine plant is reduced.The advantages of cooling technology with an aerothermopressor are outlined in the article. The aerothermopressor is a multifunctional jet apparatus, whose work consists in injecting water into the stream of cyclic air when it is compressed in the gas turbine plant compressor. If this apparatus is used for cooling of cycle air, it will be compensate for aerodynamic losses along the air path and it will reduce compression work in the compressor, increase the consumption of the working fluid and, as a result, increase the gas turbine plant power. The basic schemes of the aerothermopressor installation between the stages of low and high pressure compressors are considered. Theoretical thermodynamic cycles of such gas turbine plants are presented and the advantage of using a contact cooler for intercooling of the cyclic air in comparison with surface air coolers for intercooling is defined in this paper.The proposed cooling technology makes it possible using low-potential heat of secondary energy resources of gas turbine plants (heat of cyclic air), the utilization of which by traditional methods is problematic because the temperature of waste heat sources is low.The tasks are determined, the solution of which will ensure the possibility of rational organization of cooling processes in the aerothermopressor, which in turn will allow achieving optimal parameters for increasing the efficiency of the gas turbine plant and reducing the specific fuel consumption in relation to the variable climatic conditions of operation