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Journal articles on the topic 'Industrial waste heat'

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Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Chen, Mengjun, Jianbo Wang, Haiyian Chen, Oladele A. Ogunseitan, Mingxin Zhang, Hongbin Zang, and Jiukun Hu. "Electronic Waste Disassembly with Industrial Waste Heat." Environmental Science & Technology 47, no. 21 (October 15, 2013): 12409–16. http://dx.doi.org/10.1021/es402102t.

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2

Biscan, Davor, and Veljko Filipan. "Potential of waste heat in Croatian industrial sector." Thermal Science 16, no. 3 (2012): 747–58. http://dx.doi.org/10.2298/tsci120124123b.

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Waste heat recovery in Croatian industry is of the highest significance regarding the national efforts towards energy efficiency improvements and climate protection. By recuperation of heat which would otherwise be wasted, the quantity of fossil fuels used for production of useful energy could be lowered thereby reducing the fuel costs and increasing the competitiveness of examined Croatian industries. Another effect of increased energy efficiency of industrial processes and plants is reduction of greenhouse gases i.e. the second important national goal required by the European Union (EU) and United Nations Framework Convention on Climate Change (UNFCCC). Paper investigates and analyses the waste heat potential in Croatian industrial sector. Firstly, relevant industrial sectors with significant amount of waste heat are determined. Furthermore, significant companies in these sectors are selected with respect to main process characteristics, operation mode and estimated waste heat potential. Data collection of waste heat parameters (temperature, mass flow and composition) is conducted. Current technologies used for waste heat utilization from different waste heat sources are pointed out. Considered facilities are compared with regard to amount of flue gas heat. Mechanisms for more efficient and more economic utilization of waste heat are proposed.

3

Backlund, E. L., and B. G. Karlsson. "Cogeneration versus industrial waste heat." Heat Recovery Systems and CHP 8, no. 4 (January 1988): 333–41. http://dx.doi.org/10.1016/0890-4332(88)90027-0.

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4

Duke, Mikel. "Industrial waste heat powers desalination." Membrane Technology 2012, no. 5 (May 2012): 9. http://dx.doi.org/10.1016/s0958-2118(12)70106-4.

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5

Jouhara, Hussam, and Abdul Ghani Olabi. "Editorial: Industrial waste heat recovery." Energy 160 (October 2018): 1–2. http://dx.doi.org/10.1016/j.energy.2018.07.013.

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6

Bendig, Matthias, François Maréchal, and Daniel Favrat. "Defining “Waste Heat” for industrial processes." Applied Thermal Engineering 61, no. 1 (October 2013): 134–42. http://dx.doi.org/10.1016/j.applthermaleng.2013.03.020.

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7

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.

8

Krönauer, Andreas, Eberhard Lävemann, Sarah Brückner, and Andreas Hauer. "Mobile Sorption Heat Storage in Industrial Waste Heat Recovery." Energy Procedia 73 (June 2015): 272–80. http://dx.doi.org/10.1016/j.egypro.2015.07.688.

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9

Woolley, Elliot, Yang Luo, and Alessandro Simeone. "Industrial waste heat recovery: A systematic approach." Sustainable Energy Technologies and Assessments 29 (October 2018): 50–59. http://dx.doi.org/10.1016/j.seta.2018.07.001.

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10

Mukherjee, Sanjay, Abhishek Asthana, Martin Howarth, and Ryan Mcniell. "Waste heat recovery from industrial baking ovens." Energy Procedia 123 (September 2017): 321–28. http://dx.doi.org/10.1016/j.egypro.2017.07.259.

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11

Le Goff, Pierre, Hervé Le Goff, Arnold Soetrisnanto, and Jalel Labidi. "New techniques for upgrading industrial waste heat." Experimental Thermal and Fluid Science 7, no. 2 (August 1993): 132. http://dx.doi.org/10.1016/0894-1777(93)90124-2.

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12

Stijepovic, Mirko, and Patrick Linke. "Combined heat and power generation using industrial zones waste heat." Qatar Foundation Annual Research Forum Proceedings, no. 2012 (October 2012): EEP89. http://dx.doi.org/10.5339/qfarf.2012.eep89.

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13

Baidzhanov, Dzhumageldy, Zhmagul Nuguzhinov, Vladimir Fedorchenko, and Lyudmilla Divak. "Heat Insulation Materials Based on Cenospheres." Applied Mechanics and Materials 725-726 (January 2015): 383–90. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.383.

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In the conditions of the modern industry, manufacturing the main materials and products is more estimated in the parameters characterizing the quantity of the formed waste. A progressive tendency in material-intensive branches is transformation of industrial wastes into the raw materials suitable for industrial use. It refers completely to the ashes of thermal power stations (TPS) and state district power stations (SDPS).

14

Nesreddine, Hakim, Brice Le Lostec, and Adlane Bendaoud. "Power Generation from Low Grade Industrial Waste Heat." International Journal of Electrical Energy 4, no. 1 (2016): 42–47. http://dx.doi.org/10.18178/ijoee.4.1.42-47.

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15

KHLYSTOV, Aleksey I., and Dmitriy I. ISAEV. "PHOSPHATE LINKING OF MINERAL THIN-MOLTED INDUSTRIAL WASTE." Urban construction and architecture 9, no. 3 (September 15, 2019): 85–91. http://dx.doi.org/10.17673/vestnik.2019.03.11.

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The article describes various methods of synthesizing heat-resistant binders based on large-tonnage wastes of enterprises. The use of pyrite butts and expanded clay dust, respectively, from the Chapayevsky Chemical Plant and the expanded clay plant of the city of Samara in the compositions of heat-resistant concrete on phosphate binders allowed to increase their residual strength in the zone of critical temperatures (1300-1350 °С). The refractoriness of these phosphate binders turned out to be very low (≈1300 °С), which required the use of such a method of its increase as the introduction of fine high-alumina fillers with high melting points into the composition of the binder. It was revealed and justified that the use of an alumina-chromium petrochemical waste IM-2201 allowed to increase the refractoriness of the heat-resistant composition to 1600 °С. On the basis of the developed alumina-iron-phosphate, zirconyliron- phosphate and alumino-silicophosphate binders, the compositions of heavy concrete with chamotte and high-aluminous aggregates of grades 400 and 500 were selected.

16

Sun, Fengchang, Shiyue Li, Zhonghua Bai, Changhai Miao, Xiaochuan Deng, Dogyang Yu, and Zhichao Zhang. "Optimization design of thermal system for industrial waste heat power generation." E3S Web of Conferences 261 (2021): 01047. http://dx.doi.org/10.1051/e3sconf/202126101047.

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In order to improve the utilization rate of industrial waste heat and improve the fine design level of waste heat power station, this paper constructs the mathematical model of waste heat boiler and steam turbine, and puts forward the optimization design method of thermal system of waste heat power generation project. By using typical cases, it is proved that there is the optimal design pressure of HRSG, which makes the power generation of the system maximum, and provides a method to improve the power generation of HRSG.

17

Ma, Hongting, Lihui Yin, Xiaopeng Shen, Wenqian Lu, Yuexia Sun, Yufeng Zhang, and Na Deng. "Experimental study on heat pipe assisted heat exchanger used for industrial waste heat recovery." Applied Energy 169 (May 2016): 177–86. http://dx.doi.org/10.1016/j.apenergy.2016.02.012.

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18

Alam, Wiqas. "Material Selection for Micro Channel Heat Exchangers for Industrial Waste Heat Recovery." International Journal of Engineering Works 06, no. 11 (November 1, 2019): 406–13. http://dx.doi.org/10.34259/ijew.19.611406413.

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19

Yang, Zhao, Yang Zhuo, Luo Ercang, and Zhou Yuan. "Travelling-wave thermoacoustic high-temperature heat pump for industrial waste heat recovery." Energy 77 (December 2014): 397–402. http://dx.doi.org/10.1016/j.energy.2014.09.023.

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20

Brückner, Sarah, Selina Liu, Laia Miró, Michael Radspieler, Luisa F. Cabeza, and Eberhard Lävemann. "Industrial waste heat recovery technologies: An economic analysis of heat transformation technologies." Applied Energy 151 (August 2015): 157–67. http://dx.doi.org/10.1016/j.apenergy.2015.01.147.

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21

Shtirc, Liudmila, Svetlana G. Vlasova, and K. Zemlyanoi. "Synthesis of Porous Heat-Insulating Material from Industrial Waste." Solid State Phenomena 284 (October 2018): 82–89. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.82.

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We chose two glass compositions suitable for the synthesis of foam glass. The influence of additive at the amorphous silica charge in the amount of 20% and 100%, a by-product in the leaching of serpentinite, was studied. By the method of stable temperature drop, the crystallization ability of the welded glass compositions was studied. The surface tension was measured by the sessile drop method.

22

Stijepovic, Mirko. "Optimal Waste Heat Recovery and Reuse in Industrial Zones." Qatar Foundation Annual Research Forum Proceedings, no. 2011 (November 2011): EGP24. http://dx.doi.org/10.5339/qfarf.2011.egp24.

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23

Bhattacharjee, Kaushik. "Energy Conservation Opportunities in Industrial Waste Heat Recovery Systems." Energy Engineering 107, no. 6 (October 2010): 7–13. http://dx.doi.org/10.1080/01998595.2010.10132367.

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24

Meng, Fankai, Lingen Chen, Yuanli Feng, and Bing Xiong. "Thermoelectric generator for industrial gas phase waste heat recovery." Energy 135 (September 2017): 83–90. http://dx.doi.org/10.1016/j.energy.2017.06.086.

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25

Fang, Hao, Jianjun Xia, Kan Zhu, Yingbo Su, and Yi Jiang. "Industrial waste heat utilization for low temperature district heating." Energy Policy 62 (November 2013): 236–46. http://dx.doi.org/10.1016/j.enpol.2013.06.104.

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26

Li, Hui, and Jing Long Liang. "Utilization Technology of Metallurgical Waste Heat." Advanced Materials Research 886 (January 2014): 465–68. http://dx.doi.org/10.4028/www.scientific.net/amr.886.465.

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Iron and steel industry is the key industry energy-saving emission reduction of industrial enterprises in our country, this paper analyzes the status quo of China's metallurgical industry waste heat utilization, proposed to the shortage of energy utilization. Then it introduces the use of technology and high heat resources in the metallurgical enterprise of each process, including sintering waste heat power generation technology, CDQ waste heat power generation technology, TRT power generation technology, saturated steam generation technology.

27

Wei, Junying, Qi Hua, Jidai Wang, Zheng Jiang, Jihong Wang, and Liang Yuan. "Overview of the Development and Application of the Twin Screw Expander." Energies 13, no. 24 (December 14, 2020): 6586. http://dx.doi.org/10.3390/en13246586.

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With the development of society, the energy crisis has become increasingly prominent, which greatly affects the sustainable development of the economy of various countries. Industrial energy consumption accounts for more than 70% of China’s total energy consumption, of which more than 50% is converted to industrial waste heat, and recyclable waste heat resources account for about 60% of the total waste heat resources, while China’s current utilization rate of industrial waste heat only reaches about 30%. The development of renewable energy and recovery of low-grade waste heat in industry is the key to solve the problem. As a type of volumetric expander with full flow expansion, the screw expander is extensively applied in the industrial waste heat recovery and geothermal energy generation industry because of its effective utilization of low enthalpy energy. Improving the performance of the screw expander as the core, the paper concludes and summarizes the research status of the leakage, rotor geometry, sealing and lubrication, processing and manufacturing, which can affect the performance of the screw expander. In addition, it also introduces the application status and potential utilization of screw expander.

28

Abdrakhimov, V. Z. "Ecological and technological aspects of the use of wastes of combustible shale in the production of various thermal insulation materials." Ecology and Industry of Russia 22, no. 5 (May 23, 2018): 24–29. http://dx.doi.org/10.18412/1816-0395-2018-5-24-29.

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It is shown that at present the current system of environmental regulation in Russia is divorced from the real context in which to exist. One of the most promising areas for the use of waste production is ─ involving them recycled as secondary material or energy resources. On the basis of waste oil shale obtained heat-insulating materials with high physical-mechanical indicators. Due to the involvement of industrial waste in manufacturing of heat-insulating materials may dramatically change the parameters of the raw material base of Russia, which also contributes to reducing environmental impact in the regions. The use of waste fuel and energy complex: inter-shale clay and slate slag in the production of insulating materials contributes to recycling of industrial waste, the protection of the environment and expansion of raw materials base for production of ceramic building materials. The compositions of the developed compositions, proposed to obtain a lightweight brick and a porous filler, the authors of this article obtained three patents of the Russian Federation. Utilization of industrial wastes contributes to the development of "green" economy.

29

Chen, Zhen, and Wei Dou Ni. "Synergetic Utilization of Coal and Industrial Waste Heat in Power Generation System." Advanced Materials Research 724-725 (August 2013): 990–98. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.990.

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Coal and industrial waste heat synergetic utilization power generation system (the synergetic system) is proposed according to the energy cascade utilization principle. The industrial waste heat is used for feedwater heating of coal-fired power generation system to substitute steam extraction from steam turbine. The thermal performance of stand-alone waste heat power generation, stand-alone coal-fired power generation, and synergetic systems were studied, to compare the power generation capability of each system using heat balance method. The results show that the power generation capability of synergetic power generation system is larger than that of the two stand-alone systems. The equivalent and same grade waste heat synergized with higher-parameter, larger-capacity coal-fired power generation systems can generate more electricity than with the low-parameter ones; the high-parameter waste heat synergized with the higher-parameter and larger-capacity power generation systems can reach larger power generation capability. The multi-energy synergetic heating mode can greatly improve the comprehensive energy efficiency and reduce the coal consumption compared with the stand-alone energy heating mode.

30

Pakere, Ieva, Armands Gravelsins, Dace Lauka, and Dagnija Blumberga. "Will there be the waste heat and boiler house competition in Latvia? Assessment of industrial waste heat." Smart Energy 3 (August 2021): 100023. http://dx.doi.org/10.1016/j.segy.2021.100023.

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31

O’Rielly, Kristine, and Jack Jeswiet. "IMPROVING INDUSTRIAL ENERGY EFFICIENCY THROUGH THE IMPLEMENTATION OF WASTE HEAT RECOVERY SYSTEMS." Transactions of the Canadian Society for Mechanical Engineering 39, no. 1 (March 2015): 125–36. http://dx.doi.org/10.1139/tcsme-2015-0010.

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Improving the energy efficiency of industrial processes and the facilities in which they are carried out is often considered to be one of the most promising ways to begin reducing global greenhouse gas emissions. One of the best ways for organizations to reduce their energy consumption without having to carry out extensive equipment and facility overhauls is waste heat recovery or energy recycling. Waste heat recovery involves tapping into previously discarded thermal energy streams and reusing it for various purposes within a facility (space heating or cooling) or within the process itself (pre-heating air and boiler makeup water). Despite the numerous social and economic benefits that are available through waste heat recovery, several economic and technical barriers still exist to its wide-scale implementation. This paper provides an overview of the current state of waste heat recovery systems available in industry, offers a discussion of the major barriers to their wide-spread implementation, and lastly concludes with new data with several new case studies from Canadian manufacturers which have successfully harnessed waste heat within their facilities.

32

Marttila, Miika P., Ville Uusitalo, Lassi Linnanen, and Mirja H. Mikkilä. "Agro-Industrial Symbiosis and Alternative Heating Systems for Decreasing the Global Warming Potential of Greenhouse Production." Sustainability 13, no. 16 (August 12, 2021): 9040. http://dx.doi.org/10.3390/su13169040.

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Greenhouses require large amounts of energy, which is the dominant factor making greenhouses more emission intensive than open-field cultivation. Alternative heating systems, such as combined heat and power (CHP), biogas, and industrial waste heat, are continuously being researched for reducing the environmental impacts of greenhouses. This paper assesses utilizing industrial waste heat and CO2 enrichment in greenhouses as an example to propose “agro-industrial symbiosis” (AIS), to refer to a symbiotic co-operation between agricultural and industrial partners. The global warming potentials (GWPs) of greenhouse production using different heating systems are inadequately compared in the literature, which is the research gap addressed herein. Additionally, potential emission reductions of greenhouse production with industrial waste heat are yet to be assessed via lifecycle assessment (LCA). A comparative LCA of Finnish greenhouse tomato and cucumber production using various heating systems was conducted. Naturally, replacing fossil fuels with bioenergy and renewables significantly decreases the GWP. CHP systems result in decreased GWP only when using biogas as the energy source. Additionally, utilizing industrial waste heat and CO2 resulted in a low GWP. These results are applicable worldwide to guide political decision-making and clean energy production in the horticultural sector.

33

Perfilov, V. A., and Dmitry V. Oreshkin. "Improvement of Environmental Safety due to Utilization of Industrial Wastes in Refractory Concretes Production." Solid State Phenomena 265 (September 2017): 43–46. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.43.

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The article suggests recycling aluminium and pipe industry wastes in the production of refractory materials. New compositions of light fibrous concrete are developed, compared to the known structures they have improved physical and mechanical properties and a low cost. This is achieved due to the lack of heat treatment and utilization of industrial waste. Aluminous slag and sulphate sludge are stored in open landfills. Recycling of slag and sludge helps to improve the ecological state of environment. This article describes the chemical composition of the waste and suggests the optimal ratio of the mixture components. The properties of refractory fibrous concretes were defined at hardening of mixture in the natural conditions in the absence of heat treatment.

34

Kazmina, O. V., A. P. Semke, I. V. Belyaeva, and B. S. Semukhin. "PRODUCTION OF FOAMED HEAT INSULATION MATERIALS FROM COPPER ORE MILL TAILINGS." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 1 (February 27, 2019): 159–68. http://dx.doi.org/10.31675/1607-1859-2019-21-1-159-168.

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This paper focuses on ecological and environmental management problems involving the industrial wastes. The paper proposes the production method for foamed materials on made from copper ore tailings. The goal of the study is to evaluate the industrial waste applications in the production of heat-insulating materials. The chemical composition of wastes and its high dispersion indicates to its potential use in the frit synthesis without complete melting of the mixture. Frit is synthesized from a two-component blend consisting of 80 % waste and 20 % caustic ash. The synthesis temperature does not exceed 900 °С which is a better alternative to the conventional glassmaking temperature of 1500 °С. It is shown that the optimum porous, uniform structure with the average pore size is not over 1 mm forms in samples prepared at a foaming temperature of 850 °С followed by a 10-minute curing. The resulting materials has a density of 250 kg/m3 and increased strength up to 1.7 MPa.

35

Merlin, Kevin, Jérôme Soto, Didier Delaunay, and Luc Traonvouez. "Industrial waste heat recovery using an enhanced conductivity latent heat thermal energy storage." Applied Energy 183 (December 2016): 491–503. http://dx.doi.org/10.1016/j.apenergy.2016.09.007.

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36

Ilechie, C. O., G. F. Aibangbee, S. R. Ogblechi, and P. E. Amiolemhen. "Performance Evaluation of Palm Waste Screw Press Briquette Moulding Machine." Advanced Materials Research 62-64 (February 2009): 723–27. http://dx.doi.org/10.4028/www.scientific.net/amr.62-64.723.

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An alternative source of heat energy to firewood called, palm waste briquette, has been developed from oil palm fruit process wastes. These wastes (sludge, shell, fibre) are compounded in a volumetric ratio of 1:2:3 and moulded into briquettes. The performance evaluation of a low cost women friendly palm waste briquette moulding machine was carried out. The evaluation showed that the machine designed and fabricated using readily available low carbon steel (mild steel) and employing the vertical screw thread mechanism in its operation, produces three different sizes of briquette (industrial sizes, medium sizes and domestic sizes). It requires only two unskilled operators and has a daily throughput of about 1,300kg briquettes (i.e. 400 pieces-industrial size or 800 pieces-medium size or 1,600 pieces-domestic size) unlike a modified brick moulding machine which has a daily throughput of 120 pieces industrial size

37

Hys, Lech, and Tomasz Wiak. "EMISSION AND TRENDS IN RECLAIMING WASTE HEAT IN INDUSTRIAL INSTALATIONS." Journal of Ecological Engineering 14, no. 2 (April 15, 2013): 26–30. http://dx.doi.org/10.5604/2081139x.1043170.

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38

Zhang, L., and T. Akiyama. "How to recuperate industrial waste heat beyond time and space." International Journal of Exergy 6, no. 2 (2009): 214. http://dx.doi.org/10.1504/ijex.2009.023999.

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39

Khaliq, A., R. Kumar, and I. Dincer. "Performance analysis of an industrial waste heat-based trigeneration system." International Journal of Energy Research 33, no. 8 (June 25, 2009): 737–44. http://dx.doi.org/10.1002/er.1511.

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40

Gutiérrez-Arriaga, César Giovani, Faissal Abdelhady, Hisham S. Bamufleh, Medardo Serna-González, Mahmoud M. El-Halwagi, and José María Ponce-Ortega. "Industrial waste heat recovery and cogeneration involving organic Rankine cycles." Clean Technologies and Environmental Policy 17, no. 3 (August 19, 2014): 767–79. http://dx.doi.org/10.1007/s10098-014-0833-5.

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41

Hong, Gui-Bing, Tze-Chin Pan, David Yih-Liang Chan, and I.-Hung Liu. "Bottom-up analysis of industrial waste heat potential in Taiwan." Energy 198 (May 2020): 117393. http://dx.doi.org/10.1016/j.energy.2020.117393.

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42

Simeoni, Patrizia, Gellio Ciotti, Mattia Cottes, and Antonella Meneghetti. "Integrating industrial waste heat recovery into sustainable smart energy systems." Energy 175 (May 2019): 941–51. http://dx.doi.org/10.1016/j.energy.2019.03.104.

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43

Brueckner, Sarah, Rene Arbter, Martin Pehnt, and Eberhard Laevemann. "Industrial waste heat potential in Germany—a bottom-up analysis." Energy Efficiency 10, no. 2 (August 17, 2016): 513–25. http://dx.doi.org/10.1007/s12053-016-9463-6.

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44

Pashchenko, Dmitry. "Industrial furnaces with thermochemical waste-heat recuperation by coal gasification." Energy 221 (April 2021): 119864. http://dx.doi.org/10.1016/j.energy.2021.119864.

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45

Zhang, Zhenrui. "Comprehensive Research on Application and Optimization of Heat Storage Technology Under Different Industrial Demand: Based on Medium and Low Temperature." Progress in Energy & Fuels 9, no. 2 (September 28, 2020): 27. http://dx.doi.org/10.18282/pef.v9i2.1093.

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<p>Heat storage technology is one of the key technologies in the field of solar thermal power generation and cogeneration. It uses heat storage materials as the media to store solar thermal energy, industrial waste heat, low-grade waste heat and other kinds of thermal energy, and release it when needed, so as to solve the mismatch between energy supply and demand. This paper introduces the classification and characteristics of heat storage technology, analyzes the research progress of heat storage technology in the fields of solar thermal power generation, heat storage materials and industrial drying, and forecasts the development trend of heat storage technology in the future. The results indicate that heat storage technology is beneficial to improve industrial production efficiency, broaden industrial energy conservation and emission reduction ideas, and has a great application prospect under the continuous improvement of practitioners with innovative spirit.</p>

46

Kang, Ju O., and Sung Chul Kim. "Heat Transfer Characteristics of Heat Exchangers for Waste Heat Recovery from a Billet Casting Process." Energies 12, no. 14 (July 15, 2019): 2695. http://dx.doi.org/10.3390/en12142695.

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The application of the thermoelectric generator (TEG) system to various industrial facilities has been explored to reduce greenhouse gas emissions and improve the efficiency of such industrial facilities. In this study, numerical analysis was conducted according to the types and geometry of heat exchangers and manufacture process conditions to recover waste heat from a billet casting process using the TEG system. The total heat absorption increased by up to 10.0% depending on the geometry of the heat exchanger. Under natural convection conditions, the total heat absorption increased by up to 45.5%. As the minimum temperature increased, the effective area increased by five times. When a copper heat exchanger of direct conduction type was used, the difference between the maximum and minimum temperatures was significantly reduced compared to when a stainless steel heat exchanger was used. This confirmed that the copper heat exchanger is more favorable for securing a uniform heat exchanger temperature. A prototype TEG system, including a thermosyphon heat exchanger, was installed and a maximum power of 8.0 W and power density of 740 W/m2 was achieved at a hot side temperature of 130 °C. The results suggest the possibility of recovering waste heat from billet casting processes.

47

Bianchi, Giuseppe, Gregoris P. Panayiotou, Lazaros Aresti, Soteris A. Kalogirou, Georgios A. Florides, Kostantinos Tsamos, Savvas A. Tassou, and Paul Christodoulides. "Estimating the waste heat recovery in the European Union Industry." Energy, Ecology and Environment 4, no. 5 (September 25, 2019): 211–21. http://dx.doi.org/10.1007/s40974-019-00132-7.

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Abstract Industrial processes are currently responsible for nearly 26% of European primary energy consumptions and are characterized by a multitude of energy losses. Among them, the ones that occur as heat streams rejected to the environment in the form of exhausts or effluents take place at different temperature levels. The reduction or recovery of such types of energy flows will undoubtedly contribute to the achievement of improved environmental performance as well as to reduce the overall manufacturing costs of goods. In this scenario, the current work aims at outlining the prospects of potential for industrial waste heat recovery in the European Union (EU) upon identification and quantification of primary energy consumptions among the major industrial sectors and their related waste streams and temperature levels. The paper introduces a new approach toward estimating the waste heat recovery in the European Union industry, using the Carnot efficiency in relation to the temperature levels of the processes involved. The assessment is carried out using EU statistical energy databases. The overall EU thermal energy waste is quantified at 920 TWh theoretical potential and 279 TWh Carnot potential.

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Kralj, Anita Kovač, Peter Glavič, and Majda Krajnc. "Waste heat integration between processes." Applied Thermal Engineering 22, no. 11 (August 2002): 1259–69. http://dx.doi.org/10.1016/s1359-4311(02)00047-9.

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Nikolaeva, L. A., and A. A. Adzhigitova. "Purification of Industrial Waste Water from Copper Ions Using Ash Waste." Voprosy sovremennoj nauki i praktiki. Universitet imeni V.I. Vernadskogo, no. 1(79) (2021): 060–68. http://dx.doi.org/10.17277/voprosy.2021.01.pp.060-068.

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The necessity of studying organic waste as a secondary energy resource for a waste-heat boiler with further use of the resulting ash for the adsorption of heavy metal ions is shown. The adsorptive purification of waste water from copper ions by ash of organic waste is considered. The chemical composition and technological characteristics of organic biomass, the characteristics of the boiler and the toxicity of the resulting ash have been determined. The chemical composition of the ash was obtained. The isotherm of adsorption in static conditions and the output curve of adsorption in dynamic conditions of copper cations by ash of organic waste were constructed. The process of wastewater treatment of galvanic production is presented. It is concluded that the use of the adsorption method allows for a high degree of wastewater purification and its possible reuse for the technological needs of the enterprise.

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Yarmolchick, Yu Р., R. Schröger, H. Haberfelner, M. Pichler, D. Kostić, and G. V. Moroz. "Combined Combustion of Various Industrial Waste Flows in Boiler Furnaces. Part 2." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 6 (December 2, 2020): 526–40. http://dx.doi.org/10.21122/1029-7448-2020-63-6-526--540.

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When industrial waste flows (mixtures of different substances) are burned, thermal energy is generated in the combustion chambers of the heat generating plants. In this case, the energy contribution of the chemical compounds included in their composition is different. The article considers the enthalpies of combustion of the most characteristic chemicals, formulates the energy balance equations while simultaneously burning several mass flows of fuels, taking into account their calorific value. The general mechanisms of heat transfer to the walls of the combustion chamber are investigated. An analysis is made of the contribution of convection and the radiation mechanism to the total amount of heat transferred to the heat generator, depending on the process temperature. It is demonstrated that the heat transfer by radiation between the combustion chamber and the boiler tubes depends on the thermal radiation properties of ash deposition. In this case, the emissivity of the resulting ash deposition decreases with increasing temperature. The dependence of the maximum flame radiation on the C/H ratio by weight is considered using the example of the initial combustible chemicals that are part of solid, liquid and gaseous wastes of industrial technologies. The main pollutants which emerge during the combustion of industrial waste are determined. The mechanisms of formation of nitrogen oxides (NOx), particulate matter, sulfur oxides (SOx), halogen acids, polymers, soot, volatile organic compounds and ash are considered in detail. The distribution of various processes of formation of nitrogen oxides depending on the value inverse to the coefficient of excess air (φ = 1/α) is determined. A physical scheme and a system of chemical equations of the mechanism of soot formation which includes the most important stages of the formation of polycyclic aromatic hydrocarbons are presented. The stages of the separation of reactive ash-forming elements are considered. It is demonstrated that ash deposits pose serious problems in the operation of heat generators, especially those that have such a developed heat exchange surface, such as boiler plants. In this regard, the forms and conditions of the processes of ash deposition are also considered separately. The combustion conditions affecting the state, size and distribution of solid particles and the condensed phase of ash are determined.