Journal articles: 'Sustainable usage of waste heat'

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Moser, Simon, and Stefan Puschnigg. "Supra-Regional District Heating Networks: A Missing Infrastructure for a Sustainable Energy System." Energies 14, no. 12 (June 8, 2021): 3380. http://dx.doi.org/10.3390/en14123380.

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In analogy to electricity transmission networks, this paper analyzes the concept of supra-regional district heating networks (SR-DHN), connecting a large number of actors. Using a back-casting approach, a SR-DHN is assumed to exist and thus, implementation challenges, such as economic feasibility and energy losses, are circumvented in the first step (but are analyzed in the discourse). The paper then analyzes, in an interdisciplinary qualitative manner and supported by a case study, what technical, operational, economic and legal issues must have been resolved. Results show that the heat transmission network, being the backbone of the SR-DHN, is an expensive infrastructure, but is likely to become economic in a non-fossil energy system. By decreasing the reliance on single waste heat sources, SR-DHN allows longer payback periods and can thus be an enabler for using industrial waste heat. However, involving many actors requires comprehensive contractual foundations. The derived hypothesis is that SR-DHN, which is predominantly fed by waste heat, shall be operated with lower temperatures in winter (feeding the return while minimizing expensive winter losses) and high temperatures in summer (enabling alternative usages while accepting high but inexpensive summer losses).

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Melnyk, Leonid, Oleksandr Kubatko, Svitlana Fedyna, and Ivan Torba. "Bioenergy and Bioresources Usage in the Context of Circular Economy Promotion." Economics and Business 35, no. 1 (January 1, 2021): 57–70. http://dx.doi.org/10.2478/eb-2021-0004.

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Abstract The circular economy, which minimises the level of environmental pollution, creates a promising background for sustainable development. The application of bioeconomics principles provides the use of by-products of agriculture, forestry, food waste, and wastewater as raw materials for electricity and heat. The objective is to analyse the prerequisites for bioenergy development as one of the circular economy areas. FGLS estimations are performed over the period of 2007–2018. The leading position in terms of bioenergy sphere growth is occupied by the European Union, followed by the countries of Asia and North America. The division of biomass into “traditional” and “modern” is discussed, where traditional biomass is mostly used for cooking and space heating in developing countries, while the EU is focusing on the development of second-generation (2G) biofuels when the biofuel is produced from non-food raw materials. It is estimated that the annual production of energy from renewable sources is about 225 thousand tons of o. e. in Ukraine. It is found that the legal field and the strategic directions of the bioeconomy in the European Union and Ukraine coincide, but the pace of development of bioenergy in Ukraine can be described as very slow. To increase the bioenergy potential, it is recommended to apply green tariffs, renewable energy certificates, and subsidies to energy producers.

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Kairytė, Agnė, Saulius Vaitkus, and Arūnas Kremensas. "Synthesis of Biocomposite with Different Ratios of Rapeseed Oil Binder/Wood Bark: Mechanical and Hygrothermal Properties." Key Engineering Materials 799 (April 2019): 142–47. http://dx.doi.org/10.4028/www.scientific.net/kem.799.142.

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Growing economy is a basis of public well-being, and its rapid growth is implemented on the expense of environmental quality; therefore, the harmonization of different aims and interests is one of the most important aspects of sustainable development concept. One of the priorities of sustainable development in Lithuania – the reduction of building and building materials industries’ impact on environment by increasing their eco and energy efficiency; consequently, the use of waste from renewable resources for the synthesis of chemical materials and production of building materials may reduce the usage of limited sources and emission of greenhouse gases. Such waste open up the opportunities to partially or fully replace traditional materials such as petroleum based polymers or cements which production emits many pollutants, uses lots of energy and natural resources. Nowadays, wood and agricultural waste are used for the production of biofuel; however, such heat source provides with short-term benefit. The use of the above mentioned waste materials for the production of bio-based thermal insulating composites would provide with long-term benefit and contribute to the improvement of currently targeted energy performance of buildings. During the study, it was obtained that the ratios of wood bark/rapeseed binder changes the main parameters of biocomposites. The obtained products are characterized by the density ranging from 329 kg/m3 to 378 kg/m3 and thermal conductivity – from 0.0665 W/(m·K) to 0.0781 W/(m·K). The compressive strength and short-term water absorption have shown that biocomposites can be used as a self-bearing structural materials due its sufficient strength which is approx. 2 MPa and water uptake varies from 20 vol.% to 40 vol.%.

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Lesakova, Ľubica. "Small and medium enterprises and eco-innovations: empirical study of Slovak SME´s." Marketing and Management of Innovations, no. 3 (2019): 89–97. http://dx.doi.org/10.21272/mmi.2019.3-07.

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Eco-innovation and green technologies are key to Europe´s future and they are at the heart of the European Union (EU) policies. The EU´s economic prosperity and well being are linked to its natural environment and the global demand for renewable energy and resource-efficient solutions will be a source of new jobs and economic growth in the years to come. As the numerous practical examples from industry demonstrate, eco-innovation is a powerful instrument that combines reduced negative impact on the environment with a positive impact on the economy and society. Eco-innovation call attention to the positive contribution that the small and medium enterprises can make to sustainable development and a competitive economy. To step towards sustainable economic growth, there is a need for much more eco-innovations to appear in small and medium enterprises (SMEs). The aim of the paper is to present the results of empirical research aimed at SME´s involvement in eco-innovation activities in Slovakia and to compare them with the EU 28 average. Our analysis is aimed at five eco-innovation activities contributing deeply to the circular economy. That is a) waste recycling and minimizing waste generation; b) re-planned energy usage to minimize consumption; c) redesigning products and services to minimize the use of materials or using recycled materials; d) changes to the use of water to minimize consumption and to maximize water re-usage; e) usage of renewable energy sources. Identified will be the actual and perceived issues (problems, difficulties) encountered by Slovak SMEs with regard to undertaking eco-innovations. Based on the research results formulated are the implications for SMEs managers and policymakers in Slovakia concerned with the SME´s involvement in ecoinnovation. Our study is qualitative and descriptive in nature and most of the data is based on secondary sources. The data used to assess the SME´s involvement in eco-innovation activities come from the survey commissioned by the EC in the year 2016 with the aim to explore SME´s activities in relation to the circular economy (including the ecoinnovation activities) in the period of years 2014-2016. As to the Slovakia 383 SMEs operating in manufacturing, services and in the industry sector has been interviewed. The methods used in the paper are the methods of causal analysis, deduction, abstraction, comparison as well as synthesis.

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Pan, Zhongli. "Innovative Infrared Heating Technologies for Food and Agricultural Processing." Technology & Innovation 21, no. 4 (December 1, 2020): 1–16. http://dx.doi.org/10.21300/21.4.2020.8.

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Food and agricultural industries have an increasing need to develop and adopt novel and sustainable processing technologies with high processing and energy efficiency and less water usage and waste-water generation while, at the same time, delivering safe, high-quality processed food and agricultural products. The use of infrared (IR) radiation heating for food and agricultural processing represents a novel approach for various food thermal processing operations, including drying, blanching, disinfestation, disinfection, and stabilization. Relevant attributes of IR heating technology include high heat delivery rate, lack of need for a heating medium, reduced processing time, improved energy efficiency, and enhanced product quality and safety with a minimal environmental footprint. The author and his research team recently conducted systematic and innovative research on IR heating for food and agricultural product processing, which resulted in an advancement in the scientific knowledge of IR heating in food science and engineering and the development and commercialization of a series of patented processing technologies. The novel IR heating technologies improved food healthfulness, quality, and safety while saving energy and water. The focus of this article is the review of several innovative IR heating-based processing technologies that were developed, including IR dry-peeling, dry-blanching, and dehydration technologies for fruits and vegetables; IR heating technology for drying and roasting of tree nuts; and effective IR heating for simultaneously achieving multiple goals in rice postharvest processing.

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Swithenbank, Jim, Karen N. Finney, Qun Chen, Yao Bin Yang, Andy Nolan, and Vida N. Sharifi. "Waste heat usage." Applied Thermal Engineering 60, no. 1-2 (October 2013): 430–40. http://dx.doi.org/10.1016/j.applthermaleng.2012.10.038.

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Bundela. "Sustainable Development through Waste Heat Recovery." American Journal of Environmental Sciences 6, no. 1 (January 1, 2010): 83–89. http://dx.doi.org/10.3844/ajessp.2010.83.89.

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Sarada, S. Naga, Banoth Hima Bindu, Sri Rama R. Devi, and Ravi Gugulothu. "Solar Water Distillation Using Two Different Phase Change Materials." Applied Mechanics and Materials 592-594 (July 2014): 2409–15. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2409.

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In recent years with the exacerbation of energy shortage, water crisis increases around the world. With the continuous increase in the level of greenhouse gas emissions, the use of various sources of renewable energy is increasingly becoming important for sustainable development. Due to the rising oil price and environmental regulations, the demand of utilizing alternative power sources increased dramatically. Alternative energy and its applications have been heavily studied for the last decade. Energy and water are essential for mankind that influences the socioeconomic development of any nation. Pure water resources become more and more scarce every day as rivers, lakes wells and even seawater pollution rapidly increases. Solar energy is one promising solution to secure power and potable water to future generation. The process of distillation can be used to obtain fresh water from salty, brackish or contaminated water. Water is available in different forms such as sea water, underground water, surface water and atmospheric water. Clean water is essential for good health. The search for sustainable energy resources has emerged as one of the most significant and universal concerns in the 21st century. Solar energy conversion offers a cost effective alternative to our traditional usages. Solar energy is a promising candidate in many applications. Among the alternative energy sources used for electricity production, wind and solar energy systems have become more attractive in recent years. For areas where electricity was not available, stand alone wind and solar systems have been increasingly used. The shortage of drinking water in many countries throughout the world is a serious problem. Humankind has depended for ages on river, sea water and underground water reservoirs for its fresh water needs. But these sources do not always prove to be useful due to the presence of excessive salinity in the water. To resolve this crisis, different methods of solar desalination have been used in many countries. Distillation is a well known thermal process for water purification, most importantly, water desalination. Most of the conventional water distillation processes are highly energy consuming and require fossil fuels as well as electric power for their operation. Single basin solar still is a popular solar device used for converting available brackish or waste water into potable water. Because of its lower productivity, it is not popularly used. Numbers of works are under taken to improve the productivity and efficiency of the solar still. There are large numbers of PCMs that melt and solidify at wide range of temperatures, making them attractive in a number of applications. PCMs have been widely used in latent heat thermal storage systems for heat pumps, solar engineering and spacecraft thermal control applications. The use of PCMs for heating and cooling applications for buildings has been investigated within the past decade. The experimental results computed in the field of water distillation process using solar energy in the presence of energy storage materials sodium sulphate and sodium acetate are discussed in this paper. Keywords: solar energy, saline water, distillation, phase change material.

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Kosarimovahhed, Mohammadhossein, and Vahab Toufigh. "Sustainable usage of waste materials as stabilizer in rammed earth structures." Journal of Cleaner Production 277 (December 2020): 123279. http://dx.doi.org/10.1016/j.jclepro.2020.123279.

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Hauser, Peter J. "Sustainable Cotton Dyeing." Advanced Materials Research 441 (January 2012): 1–4. http://dx.doi.org/10.4028/www.scientific.net/amr.441.1.

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Conventional methods of dyeing cotton with direct and fiber reactive dyes involve large amounts of water and salt and generate significant amounts of highly colored effluent that is difficult to treat in waste water treatment facilities. Cationization of cotton with 3-chloro-2-hydroxypropyltrimethylammonium chloride allows dyeing with direct and fiber reactive dyes with less water and energy usage as well as the eliminating the need for salt. This paper summarizes work to date on the benefits of using cationized cotton.

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Eriskin, Ekinhan, Sebnem Karahancer, Serdal Terzi, and Mehmet Saltan. "Waste frying oil modified bitumen usage for sustainable hot mix asphalt pavement." Archives of Civil and Mechanical Engineering 17, no. 4 (September 2017): 863–70. http://dx.doi.org/10.1016/j.acme.2017.03.006.

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Raj, Indu Susan, and Karthiyaini Somasundaram. "Sustainable Usage of Waste Materials in Aerated and Foam Concrete: A Review." Civil Engineering and Architecture 9, no. 4 (July 2021): 1144–55. http://dx.doi.org/10.13189/cea.2021.090416.

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Memarzadeh, Ph.D., Faranak, and Sulekha Anand. "Male vs. Female Sustainable Technology Usage in the Lodging Industry." Events and Tourism Review 3, no. 1 (July 1, 2020): 7–12. http://dx.doi.org/10.18060/23594.

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Although sustainability applications/technology are a key focus in the lodging industry, this area of study is relatively new and requires more investigation. The current study examined whether there are gender differences in the perceptions of sustainable practices and technology in the hotel industry. An online survey asked participants’ opinions about sustainable practices and technology such as eco-friendly heating and energy, waste reduction technology, sustainable laundry, lighting technology, paperless transactions, and hotel specific sustainable apps. The result indicated that ease of use is perceived differently by females and males.

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Shahzad, Muhammad Wakil, Kim Choon Ng, and Kyaw Thu. "Future sustainable desalination using waste heat: kudos to thermodynamic synergy." Environmental Science: Water Research & Technology 2, no. 1 (2016): 206–12. http://dx.doi.org/10.1039/c5ew00217f.

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There has been a plethora of published literature on thermally-driven adsorption desalination (AD) cycles for seawater desalination, due to their favorable attributes in hybridizing with existing proven thermal desalination methods.

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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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Glavič, Peter. "Evolution and Current Challenges of Sustainable Consumption and Production." Sustainability 13, no. 16 (August 20, 2021): 9379. http://dx.doi.org/10.3390/su13169379.

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This review paper examines the past, present, and future of sustainable consumption and production (SCP). The history of the Sustainable Development Goal No. 12 (i.e., to ensure sustainable consumption and production patterns) is presented and analyzed. A definition of the sustainable consumption is given and the role of education is explained. The present status and existing trends of SCP are introduced by analyzing unsustainable behavior and the existing dilemma, namely sustainable growth or degrowth. A very broad range of methods is used for measuring and evaluating SCP within sustainable development. To forecast the future of SCP, important trends are presented. The future development of SCP will follow several megatrends and it will require reduced personal and collective consumption (degrowth). Energy usage in buildings, renewable energy sources, and energy storage will be important in that respect. Transportation emissions will continue to be lowered. Waste, especially food waste, shall be reduced, and consumer products shall become more durable. All waste must be collected and separated to be reused. SPC is elaborated in view of the two approaches—Industry 4.0 (smart factory), and the “Sixth Wave” evolution. Net-zero greenhouse gas emissions, resource efficiency, and zero waste will be at the forefront of future activities. A circular economy requires extension of product lifetimes, and the reuse and recycling of products. Reducing emissions, pollution and specific energy, water, and raw material usage (especially critical raw materials), as well as the role of digitalization, will be important.

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Omar Abdullah, Baqadeem Abdullah, F. M. Jakarni, A. K. S. Al-Shakhrit, and Khairil Azman Masri. "Usage of Recycled Glass In Hot Mix Asphalt: A Review." CONSTRUCTION 1, no. 1 (May 31, 2021): 29–34. http://dx.doi.org/10.15282/construction.v1i1.6324.

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Waste material has been defined as any type of material by-product of human or industrial activity that has no residual value. The elimination of waste glass in landfills become a serious challenging task which several countries look out on it on all sides of the world. Reusing of glass waste for road construction is a sustainable solution to environmental and ecological problems. Reusing of glass waste will reduce the construction cost of pavement, reduce the landfill cost. This study has done to review the overall performance of asphalt concrete blend, in which several exceptional combinations of aggregate is replaced with various proportions of crashed glass. This review is discussed some main properties of asphalt mixture, such as stability and flow. The results shown that the stability was higher than that of the glass waste samples and decreasing as the glass waste increasing. In general, the research displays that using glass waste in asphalt mixture is acceptable.

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Pathak, Priyanka, Sumit Gupta, and Govind Sharan Dangayach. "SUSTAINABLE WASTE MANAGEMENT: A CASE FROM INDIAN CEMENT INDUSTRY." Brazilian Journal of Operations & Production Management 12, no. 2 (December 28, 2015): 270. http://dx.doi.org/10.14488/bjopm.2015.v12.n2.a7.

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Sustainability means meeting the needs of the present without compromising the ability of future generations to meet their own needs, and Sustainable Waste Management is using waste produced efficiently so that use of amount of material resources get reduced. India, is the second amongst cement producers in the world with a total capacity of 245.40 Million Tonnes (MT), has a huge cement industry and produces about 7% of world’s total production. The Indian cement industry has on one hand, enormous pressure to increase profit and margins, while on other; there is considerable public interest on a sustainable and environment friendly usage of natural resources. The objective of this paper is to pursue sustainable waste management for a cement industry through replacement of coal with some alternative fuel, which actually belongs to the group of hazardous wastes and which could benefit the plant economically and environmentally, and improve sustainability of plant. The use of alternative fuels will help in reducing energy costs and providing a competitive edge for a cement plant. Furthermore, this will reduce the burden of waste disposal considerably. So, it also supports to fulfilling Sustainable Waste Management issues

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Otterpohl, Ralf, Matthias Grottker, and Jörg Lange. "Sustainable water and waste management in urban areas." Water Science and Technology 35, no. 9 (May 1, 1997): 121–33. http://dx.doi.org/10.2166/wst.1997.0336.

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Sewerage system and centralised aerobic wastewater treatment plants (WTP) should not be considered as the only possible solution for sanitation. Systems with source control can avoid many problems of the end-of-pipe technology by respecting different qualities of wastewater and by treating them appropriately for reuse. Different qualities of waste and wastewater in human settlements and appropriate treatment technologies can be: 1. low diluted faeces with/without urine and bio waste (composter or anaerobic digester), 2. grey ·water/aerobic biofilm plant, 3. storm water (usage and infiltration) and 4. non-biodegradable waste (reuse as raw material). In order to perform resource management, the material originating from agriculture should be returned to the soil as fertiliser. Of similar importance is the organic material. This helps maintaining or building up humus and creates a sink for carbon when the C-content in the soil is increased. Energy will be saved, too: energy-intensive aerobic treatment with nitrification is obsolete as well as the production of the respective amount of replaced artificial fertiliser. A pilot project for a new settlement for about 300 inhabitants in Lübeck, Germany, shall demonstrate the feasibility of a new integrated system with vacuum toilets and pipes for the collection of black water. This will be mixed with shredded bio waste and fed to a semicentralised biogas plant that produces liquid fertiliser without dewatering. Grey water will be treated in decentralised biofilm systems. Storm water is collected, retained and infiltrated in a trench system. This way the expensive centralised sewerage system can be avoided for this settlement.

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Reichel, Herbert, and Roland Krause. "Investigation and Prognosis of Waste Heat Occurrence during the Extrusion Process of Tubular Profiles." Applied Mechanics and Materials 856 (November 2016): 209–16. http://dx.doi.org/10.4028/www.scientific.net/amm.856.209.

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Extrusion is a fundamental procedure of polymer processing and is used to produce tubular profiles, foils, cable coatings, etc. Rising energy prices increase the pressure for extruder manufacturers and operators to cut costs. Nowadays, extruder manufacturers are forced to develop more energy-efficient extruders. One possibility to reach that goal is to reuse the occurring waste heat during the extrusion process. Operators could use the waste heat within their own company to reduce their primary energy costs. The prediction of energy consumption and usage of waste heat for new extrusion lines as well as existing extrusion lines with new products within the planning stage is very important. Additionally the energy recovery for new extrusion lines has to be projected within planning stage. The research approach is to enable the construction of energy recovery for future production based on theoretical view and the energy monitoring of real extrusion lines. Therefor a program was developed to forecast the amount of waste heat. The energy monitoring included the energy consumption of the main consumers and the waste heat amount of cooling chambers and barrel cooling for three different single grooved barrel extruders. The energy monitoring results show that some of the temperature of the cooling chambers qualifies for reutilization. The barrel cooling waste heat can be fully reused. The program calculates the cooling of the tubular profile with finite element difference wherein the heat transfer is calculated in the radial direction. The thermal state of the tubular profile can be simulated at every position within the extrusion line. Furthermore the thermal output into the coolant can be calculated. The calculated and collected data are satisfactory more often than not. Based on the energy monitoring results concepts for the usage of waste heat were elaborated. Thereupon measures for the usage of waste heat were implemented and validated.

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Chebotarev, Victor, Alla Koroleva, and Anastasia Pirozhnikova. "The usage of waste heat recovery units with improved heat engineering rates: theory and experimental research." IOP Conference Series: Earth and Environmental Science 90 (October 2017): 012038. http://dx.doi.org/10.1088/1755-1315/90/1/012038.

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Skinn, B., S. Lucatero, S. Snyder, E. J. Taylor, T. D. Hall, H. McCrabb, H. Garich, and M. E. Inman. "Sustainable Electrochemical Machining for Metal Recovery, Elimination of Waste, and Minimization of Water Usage." ECS Transactions 72, no. 35 (September 21, 2016): 1–20. http://dx.doi.org/10.1149/07235.0001ecst.

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Milone, Angelo, Daniele Milone, Francesco Claudio Campione, and Salvatore Pitruzzella. "Urban Waste as Resource for Sustainable Environment." Applied Mechanics and Materials 394 (September 2013): 304–8. http://dx.doi.org/10.4028/www.scientific.net/amm.394.304.

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The emerging model of waste disposal, develops an integrated approach based on waste reduction, selection, recycling, energy recovery and residual use of landfill. Here we discuss the fundamentals of a proper planning of waste disposal system, specially the thermal recovery, the integration and the methodological approach, either from the environmental and economic point of view. The growing demand for energy, the resulting environmental problems due to satisfy the demand for energy and the complex-economic system, necessitate the study of new technologies such as energy from municipal solid waste (MSW) obtaining as a result of decrease huge mass of solid waste to sanitary landifill and emissions of landifill gas as (CH4 and CO2 ). Therefore, we propose to validate a technical, economical and environmental analysis of waste-treatment systems with enphasis on generation of energy. The recovery of heat from a waste-to-energy plant, can make a useful contribution to the city energy needs. Whilst we have been slow to exploit fully this resource in Sicily, economically in urban areas.

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Irani, Zahir, and Amir M. Sharif. "Sustainable food security futures." Journal of Enterprise Information Management 29, no. 2 (March 7, 2016): 171–78. http://dx.doi.org/10.1108/jeim-12-2015-0117.

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Purpose – The purpose of this paper is to signpost the genesis of food security and associated factors such that organisations, enterprises, policy makers and interested stakeholders can seek to explore and understand this important societal issue. The challenges that food security poses are eclectic in nature and cut through country, society, organisation and individual boundaries. Only through identifying these factors – hence identifying underlying factors of food waste and usage of information within food supply chains to untangle them – can we adopt enterprise interventions in order to initiate and mitigate food security risk. Design/methodology/approach – As a viewpoint piece, there is no empirical work to report in this paper. An exploratory review of the literature has allowed for the extraction of food security concerns that need the attention of stakeholders across the enterprise to ensure robust food supply chains can be are created, maintained and sustained through a better understanding and usage of information, knowledge and data. Findings – This paper articulates six constructs that underpin the challenges of establishing food security. It is suggested that information relating to factors may support decision-makers within communities, organisations and enterprises to better understand these factors that then contribute towards enhanced food security. Relevant strategies or policies can then emerge and be developed such that strategic as well as operational interventions can be prioritised across national, regional or industry level. Underpinning the above, the waste within and across the food supply chain contributes to the six factors, also highlighting where additional focus may need to be applied to sustain food supply chains. Research limitations/implications – This paper is a position paper that does not offer factual insight but rather highlights a direction of thought that others can consider exploring as part of wider research agendas in the topical area where enterprise, organisational, and information-based contributions may support the development of strategy-led food security policy. Practical implications – This paper provides reassuring insights that will help decision and policy makers assemble their thoughts when it comes to prioritising their communications and interventions amongst organisational/enterprise-level stakeholder groups involved in food security and food supply chain contexts. Social implications – This paper has highlighted the need for more research around the human and organisational factors that are identified as both underpinning the need for food security and, as drivers of waste throughout the food supply chain. Indeed, there is further work needed to highlight the inter-relationships that exist and, which then feed into resulting interventions. Originality/value – To raise the importance of food security amongst differing stakeholder community groups at the organisational and enterprise level.

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Yahya, Muhamad Azani, Mohammed Alias Yusof, Norita Ridzuan, Mohamad Yusrin Yahya, and Ahmad Azizi Ab Aziz. "Usage of Sugarcane Bagasse as an Additive in Building Materials." Applied Mechanics and Materials 754-755 (April 2015): 369–72. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.369.

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Discovering about sustainability, construction sector should be a part of participant in utilizing waste materials for the benefits of the industry. The idea of converting waste materials into some application can contribute to sustainability and greening the earth. Apart from that, research must be done to promote the waste material into economic and useful construction material. A concept of going green must be adopted rather than just thinking of the rapid construction as the whole project aim. This paper promotes sugarcane bagasse as an additive for construction material in 3 ways which are on concrete strength improver, a concrete retarder and composite brick. The sugarcane bagasse were blended and mixed with 30MPa concrete with certain ratio and tested for compressive, flexural, water absorption and penetration. From the tests, it shows that the sugarcane bagasse gives a positive impact to concrete. Therefore, the usage of sugarcane bagasse can be considered as a concept of utilizing waste material for sustainable approach.

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Patil, Anish, Austine Ajah, and Paulien Herder. "Recycling industrial waste heat for sustainable district heating: a multi-actor perspective." International Journal of Environmental Technology and Management 10, no. 3/4 (2009): 412. http://dx.doi.org/10.1504/ijetm.2009.023743.

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Lin, Chun-Wei R., Yuh-Jiuan Melody Parng, and Yu-Lin Chen. "Profit optimization of sustainable low-to-medium temperature waste heat recovering management." Industrial Management & Data Systems 118, no. 2 (March 12, 2018): 330–48. http://dx.doi.org/10.1108/imds-04-2017-0148.

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Purpose Responding to natural resource depletion and carbon dioxide (CO2) emission problems, and also the stricter government’s energy regulations, the purpose of this paper is to develop a sustainable waste heat recovery optimal-profit-oriented management model especially targeting on the easily forgotten low- and medium-temperature waste heat in the industry. In the paper, a system is constructed to facilitate converting the low- and medium-grade waste heat in factories into electricity, and yields optimal profit. Design/methodology/approach This paper integrates an efficient Organic Rankine Cycle (ORC) system from both sustainable energy reservation and cost effectiveness approaches with an optimization model that adopts particle swarm optimization (PSO) algorithm to determine proper installation locations and feasible generator sets. The system is constructed to facilitate converting the low- and medium-grade waste heat in factories into electricity, and yields optimal profit. The model considers the environmental factors: temperature, heat amount, equipment configuration of the number of ORC sets, and detailed investment cost constraints. Findings The results show that annual investment return rate, annual increase in electricity, power generation efficiency, and annual CO2 emission reduction are all highly improved, and investment recovery period is shortened. Also, the larger scale of the waste heat emission, the better the performance is achieved. Finally, the study also completes a sensitivity test under dynamic conditions of electricity price, generator sales price and factory budget constraints, and the results are consistently robust. More valuably, this paper demonstrates applications on two different manufacturing industries with various waste heat emission scales to prove the accountability. Originality/value The main contributions are in three aspects. First, it proves that applying PSO to a nonlinear mathematical model can help determine the optimal number and style configuration of generators for waste heat sources. Second, different from the prior research works focusing on power generation, this paper also deliberates the cost factors, cost of generators, costs of numerous peripheral components and future maintenance costs to ensure the factories not conflict with the financial limitations. Third, it is not only successfully applied in two industries with different scales, but also robust with various economic tests, electricity price change, generator sales price change, and investment budget adjustments.

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Tran, Minh Tuan, Trung Luong Pham, and Xuan Tung Nguyen. "Reducing plastic waste for the competitiveness of Vietnamese tourist attractions." E3S Web of Conferences 210 (2020): 01011. http://dx.doi.org/10.1051/e3sconf/202021001011.

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Plastic usage in tourism activities has increased significantly in Vietnam over the past decades, leading to the burden of plastic pollution and the threat to sustainable tourism development. The Vietnamese government has recognized the importance of plastic waste management in sustainable tourism. Laws and regulations on controlling pollution due to non-biodegradable plastic bags. Public education activities have been organized to encourage people replace plastic products with natural materials, reuse plastic bags and reduce plastic wastes. Many tourism businesses have found ways to limit plastic consumption, such as replacing disposal plastic products with eco-friendly products. Vietnamese tourism has taken the first steps in reducing plastic waste pollution in tourism activities. This article proposed some solutions to limit and restrain plastic wastes from tourism in Vietnam.

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Uyarra, Elvira, and Sally Gee. "Transforming urban waste into sustainable material and energy usage: the case of Greater Manchester (UK)." Journal of Cleaner Production 50 (July 2013): 101–10. http://dx.doi.org/10.1016/j.jclepro.2012.11.046.

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Alekseenko, V. v., O. B. Sezonenko, and O. O. Vasechko. "RECUPERATION OF HEAT OF INCINERATORS FOR WASTE OF MEDICAL INSTITUTIONS." Energy Technologies & Resource Saving, no. 2 (June 25, 2018): 31–38. http://dx.doi.org/10.33070/etars.2.2018.04.

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Methods of reduction of temperature of exhausted gases for incinerators and features of their practical application were considered. Conditions of effective usage of recuperation of exhaust gases heat during thermal disposal of waste were considered. Methods of recuperation of exhaust gases heat of medical institutions’ waste were adduced and character ized. Evaluation of potential value of heat in exhaust gases of combustion of medical institutions’ waste was produced. Nonstationarity of the development of heat, typical of incinerators of medical institutions, which influence on coordination with load curve of potential heat consumer, was considered. The method of heat recuperation by heating of air, which is fed directly into incinerator, was offered. The constructive realization of this method and parameters of recuperator under working loads of incinerator were presented. Bibl. 11, Fig. 4, Tab. 2.

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Kim, Nae-Hyun. "Simulation of a Double Effect Double Stage Absorption Heat Pump for Usage of a Low Temperature Waste Heat." Journal of the Korea Academia-Industrial cooperation Society 16, no. 11 (November 30, 2015): 7736–44. http://dx.doi.org/10.5762/kais.2015.16.11.7736.

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Lin, Yi Jiung, Chen Yi Sun, and Hsien Te Lin. "Designing a Sustainable Planting Module for Extensive Green Roofs under the Tropical Climate." Advanced Materials Research 650 (January 2013): 677–80. http://dx.doi.org/10.4028/www.scientific.net/amr.650.677.

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Heat from solar radiation contributes to the high energy usage in the tropical climate regions. Extensive green roofs are well known efficient tools for heat insulation. This study designs a module system that is easy to implement and requires low maintenance for the extensive green roofs. The module system combined planting substrates and plants within a planting container which achieves the objectives, namely, light weight, easy shipping, good drainage, UV resistance, high water retention, and air permeability.

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Vriens, Bas, Benoît Plante, Nicolas Seigneur, and Heather Jamieson. "Mine Waste Rock: Insights for Sustainable Hydrogeochemical Management." Minerals 10, no. 9 (August 19, 2020): 728. http://dx.doi.org/10.3390/min10090728.

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Mismanagement of mine waste rock can mobilize acidity, metal (loid)s, and other contaminants, and thereby negatively affect downstream environments. Hence, strategic long-term planning is required to prevent and mitigate deleterious environmental impacts. Technical frameworks to support waste-rock management have existed for decades and typically combine static and kinetic testing, field-scale experiments, and sometimes reactive-transport models. Yet, the design and implementation of robust long-term solutions remains challenging to date, due to site-specificity in the generated waste rock and local weathering conditions, physicochemical heterogeneity in large-scale systems, and the intricate coupling between chemical kinetics and mass- and heat-transfer processes. This work reviews recent advances in our understanding of the hydrogeochemical behavior of mine waste rock, including improved laboratory testing procedures, innovative analytical techniques, multi-scale field investigations, and reactive-transport modeling. Remaining knowledge-gaps pertaining to the processes involved in mine waste weathering and their parameterization are identified. Practical and sustainable waste-rock management decisions can to a large extent be informed by evidence-based simplification of complex waste-rock systems and through targeted quantification of a limited number of physicochemical parameters. Future research on the key (bio)geochemical processes and transport dynamics in waste-rock piles is essential to further optimize management and minimize potential negative environmental impacts.

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Baliga, Rudras, and Susan E. Powers. "Sustainable Algae Biodiesel Production in Cold Climates." International Journal of Chemical Engineering 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/102179.

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This life cycle assessment aims to determine the most suitable operating conditions for algae biodiesel production in cold climates to minimize energy consumption and environmental impacts. Two hypothetical photobioreactor algae production and biodiesel plants located in Upstate New York (USA) are modeled. The photobioreactor is assumed to be housed within a greenhouse that is located adjacent to a fossil fuel or biomass power plant that can supply waste heat and flue gas containingCO2as a primary source of carbon. Model results show that the biodiesel areal productivity is high (19 to 25 L of BD/m2/yr). The total life cycle energy consumption was between 15 and 23 MJ/L of algae BD and 20 MJ/L of soy BD. Energy consumption and air emissions for algae biodiesel are substantially lower than soy biodiesel when waste heat was utilized. Algae's most substantial contribution is a significant decrease in the petroleum consumed to make the fuel.

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Preißinger, Markus, Simon Pöllinger, and Dieter Brüggemann. "Ionic liquid based absorption chillers for usage of low grade waste heat in industry." International Journal of Energy Research 37, no. 11 (January 9, 2013): 1382–88. http://dx.doi.org/10.1002/er.2997.

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Wilbrecht, Sebastian, and Michael Beitelschmidt. "The Potential of a Cascaded TEG System for Waste Heat Usage in Railway Vehicles." Journal of Electronic Materials 47, no. 6 (February 6, 2018): 3358–69. http://dx.doi.org/10.1007/s11664-018-6094-z.

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Vincevica-Gaile, Zane, Tonis Teppand, Mait Kriipsalu, Maris Krievans, Yahya Jani, Maris Klavins, Roy Hendroko Setyobudi, et al. "Towards Sustainable Soil Stabilization in Peatlands: Secondary Raw Materials as an Alternative." Sustainability 13, no. 12 (June 14, 2021): 6726. http://dx.doi.org/10.3390/su13126726.

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Implementation of construction works on weak (e.g., compressible, collapsible, expansive) soils such as peatlands often is limited by logistics of equipment and shortage of available and applicable materials. If preloading or floating roads on geogrid reinforcement or piled embankments cannot be implemented, then soil stabilization is needed. Sustainable soil stabilization in an environmentally friendly way is recommended instead of applying known conventional methods such as pure cementing or excavation and a single replacement of soils. Substitution of conventional material (cement) and primary raw material (lime) with secondary raw material (waste and byproducts from industries) corresponds to the Sustainable Development Goals set by the United Nations, preserves resources, saves energy, and reduces greenhouse gas emissions. Besides traditional material usage, soil stabilization is achievable through various secondary raw materials (listed according to their groups and subgroups): 1. thermally treated waste products: 1.1. ashes from agriculture production; 1.2. ashes from energy production; 1.3. ashes from various manufacturing; 1.4. ashes from waste processing; 1.5. high carbon content pyrolysis products; 2. untreated waste and new products made from secondary raw materials: 2.1. waste from municipal waste biological treatment and landfills; 2.2. waste from industries; 3. new products made from secondary raw materials: 3.1. composite materials. Efficient solutions in environmental engineering may eliminate excessive amounts of waste and support innovation in the circular economy for sustainable future.

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Hirvonen, Janne, Juha Jokisalo, and Risto Kosonen. "Seasonal storage of residential exhaust air and sewage waste heat." E3S Web of Conferences 246 (2021): 06009. http://dx.doi.org/10.1051/e3sconf/202124606009.

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Most Finnish residential buildings have been built before ventilation heat recovery options became mandatory. Exhaust air heat pumps are an effective way to reduce emissions, but they cannot cover all heating demand. Ground-source heat pumps can be designed to meet all loads, but they require corresponding amounts of space both above and below ground. This simulation study combines residential ventilation and sewage waste heat with a ground-source heat pump system to improve system sustainability and cost-effectiveness. A hybrid waste heat and ground-source heat pump system was shown to have 20% lower life cycle costs compared to a pure ground-source heat pump system. It also maintained sustainable ground temperature levels over the long term, while reducing above-ground space requirements by 95%.

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Tuncer, Azim Doğuş, Rukiye Mavuş, Cemre Gökçe, Meltem Koşan, and Mustafa Aktaş. "Efficient Energy Systems Models for Sustainable Food Processing." Turkish Journal of Agriculture - Food Science and Technology 7, no. 8 (August 9, 2019): 1138. http://dx.doi.org/10.24925/turjaf.v7i8.1138-1145.2439.

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The improvement and use of sustainable energy technologies are developing by the reason of increasing energy demand. Due to the fossil fuels negative effects on the environment, energy efficient building and their industrial applications have become an important research topic. To increase energy efficiency in the food industry, the reduction of specific energy consumption is needed. Food production facilities using energy for heating, cooling, drying, and specific processes which requires high temperature. In this study, six energy system models have been suggested, and presented for the use in food processing applications. These models are based on renewable energy, waste heat management, solar energy, and efficient heat pump, ice storage heat pump, thermal energy storage heat pump, drying with heat recovery and dehumidification. In addition to carbon footprint reductant, the latest trend technologies are presented and the advantages are also discussed. Especially hybrid systems that are combined with phase change materials and biomass are investigated.

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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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Laštůvka, Igor, Tomáš Vítěz, Jan Chovanec, and Jan Mareček. "Zero Waste; Energy Recovery From Non-recyclable Mixed Municipal Waste." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 64, no. 1 (2016): 99–108. http://dx.doi.org/10.11118/actaun201664010099.

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Zero Waste is a strategy offering waste management solutions for today’s businesses. The Zero Waste strategy has been created with the objective of stimulating sustainable utilisation of resources, production and consumption with the highest possible level of recycling of generated waste. Due to the fact that currently there is very little information and only few relevant data available as a base for the implementation of the Zero Waste strategy, waste management specialists approach and apply such a strategy in different manners. On the other hand, there are areas of waste management where such a strategy has already been applied on a long-term basis in spite of non-existing relevant legislative tools. Indicators determined in the Zero Waste strategy may be achieved only if the individual countries clearly define legislative environment and adopt a national Zero Waste strategy with achievable objectives unambiguously determined. The area of waste separation, or handling of fractions of waste non-utilisable as secondary materials after separation, is one of the areas directly connected to the Zero Waste strategy. The objective of this paper is the evaluation of the usage of fractions of waste non-utilisable as secondary materials for energy recovery, providing thus valuable knowledge and information for the implementation of the Zero Waste strategy.

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., Risha Mal. "THERMOELECTRIC POWER GENERATOR INTEGRATED COOKSTOVE: A SUSTAINABLE APPROACH OF WASTE HEAT TO ENERGY CONVERSION." International Journal of Research in Engineering and Technology 03, no. 24 (June 25, 2014): 35–39. http://dx.doi.org/10.15623/ijret.2014.0324007.

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Rakib, Muhammad Iftekharul, R. Saidur, Edzrol Niza Mohamad, and Amalina Muhammad Afifi. "Waste-heat utilization – The sustainable technologies to minimize energy consumption in Bangladesh textile sector." Journal of Cleaner Production 142 (January 2017): 1867–76. http://dx.doi.org/10.1016/j.jclepro.2016.11.098.

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Heghmanns, Alexander, Michael Beitelschmidt, Sebastian Wilbrecht, Karlheinz Geradts, and Gerhard Span. "Development and Optimization of a TEG-system for the Waste Heat Usage in Railway Vehicles." Materials Today: Proceedings 2, no. 2 (2015): 780–89. http://dx.doi.org/10.1016/j.matpr.2015.05.098.

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Scharf, Stefan, Niklas Bergedieck, Eric Riedel, Hans Richter, and Norbert Stein. "Unlocking Sustainability Potentials in Heat Treatment Processes." Sustainability 12, no. 16 (August 11, 2020): 6457. http://dx.doi.org/10.3390/su12166457.

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Energy consumption, greenhouse gas emissions, environmental impact levels, and the availability of materials as well as their sustainable usage are all topics of high current interest. The energy intensive processes of casting production such as heat treatment are particularly affected by the pursuit of sustainability. It has been estimated that up to 20% of the total energy demand in a non-ferrous foundry is required to provide the heat energy necessary during heat treatment processes. This paper addresses the application-oriented development of a sustainable configuration of the heat treatment process at the example of the aluminium-casting alloy A356 (AlSi7Mg0.3). Based on calculations of the physically necessary operating modes and under investigation of previous parameter recommendations, experimental studies were carried out to investigate the effects of various heat treatment parameters on the ultimate mechanical properties of the alloy. Since the achievable mechanical properties of the finished casting are decisive, the static and dynamic casting properties resulting from the heat treatment with optimized process parameters were compared with those of conventional process control. Significant optimization potential is shown for reducing the treatment time and thus lowering the energy consumption.

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Lee, Jaehong, Hans Han, Jong-Yoon Park, and David Lee. "Urban Informatics in Sustainable Waste Management: A Spatial Analysis of Korea’s Informal Recycling Networks." Sustainability 13, no. 6 (March 11, 2021): 3076. http://dx.doi.org/10.3390/su13063076.

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Large-scale informal recycling networks often emerge among developing economies in response to the challenges of modern urban waste accumulation. South Korea, despite its highly industrialized, developed economy, still maintains an extensive informal recycling sector made up of networks of local junk shops and individual waste pickers. As cities’ large data sources have become more widely available, the use of urban informatics in sustainable smart waste management has become more widespread. In this paper, we use geographic information system (GIS) analysis in order to uncover patterns within Korea’s informal recycling system, looking at the relationship between population demographics, waste levels, and urban planning with the prevalence of junk shops across Korea. We then interviewed junk shop owners, urban planning researchers, and government officials in order to better understand the factors that led to the coexistence of the country’s informal and formal systems of waste management and how junk shops have changed their operations over time in response to recent developments in cities’ urban fabrics. We conclude by giving suggestions for how the usage of urban informatics could increase the efficiency and sustainability of the country’s waste management systems, while also discussing the possible pitfalls of using such existing datasets for future policy decisions.

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Tiwari, Neha, Appu Kumar Singh, Tejas Vishwakarma, Harshal Sharma, and Mohammed Suhail. "Exhaust Manifold Waste Heat Recovery System of a Single Cylinder Engine." Applied Mechanics and Materials 592-594 (July 2014): 1534–38. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.1534.

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The current worldwide trend of rapid economic development and increasing energy requirement in the transportation sector are one of many segments that is responsible for a growing share of fossil fuel usage. Supply and demand for fuel is accelerating prices and eventually will affect availability. The selected contemporary paper will address on how a prototype Stirling engine capable of reining in waste heat spilling out of the typical engine exhaust and its intensity level to oppose against the tyranny of inefficiency. Stirling engine systems are fuel flexible with respect to source of thermal energy and unprocessed waste heat that resulting in entropy rise can be harvested to power Ancillaries and increase overall efficiency. The preliminary prototype design and methodology follows process, heat to mechanical energy and latter to electrical energy. Experimental verification of analytical data was carried out and presented here. The shortcomings of these methods are highlighted and an alternative approach to solving particulars suggested.

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Nami, Hossein, Amjad Anvari-Moghaddam, and Ahmad Arabkoohsar. "Thermodynamic, Economic, and Environmental Analyses of a Waste-Fired Trigeneration Plant." Energies 13, no. 10 (May 14, 2020): 2476. http://dx.doi.org/10.3390/en13102476.

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The global energy matrix is going to embrace more and more renewable-based combined energy systems. Therefore, multi-generation energy systems, like CHPs (combined heat and power) could be extremely beneficial for such integrated energy systems. Also, the trend is toward 100% sustainable production where both renewable and waste energy sources are of special value. Especially, in Europe, waste incineration has received special attention over the past decades, as not only it is a smart method of waste disposal, but also a measure of cheap and environmentally friendly energy production. This study proposes a municipal waste-driven tri-generation (cold, heat, and power) system and assesses how this solution helps for easier integration of energy sectors and having a more sustainable chain of energy supply. Then, the solution is comprehensively analyzed over thorough thermodynamic, thermoeconomic, and thermoenvironmental investigations. The results of the assessments show that the proposed trigeneration system may effectively operate in any energy systems with simultaneous cold, heat, and power demands. Thermal, exergetic, fuel-to-power, fuel-to-heat, and fuel-to-cold efficiencies are found to be 83.28, 25.69, 23.49, 47.41, and 12.38%, respectively, while the payback period of 6 years is obtained based on the net present method.

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Zhemin, Jin, and Yang Yuxin. "Analysis of waste heat utilization of ship main engine." E3S Web of Conferences 165 (2020): 06027. http://dx.doi.org/10.1051/e3sconf/202016506027.

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In order to protect the environment, save energy and reduce emissions, and promote the utilization of wave energy, this paper reviews the development history of application generation technology, summarizes its development from two aspects of optimization and application of wave energy conversion devices, analyses the application examples of wave energy generation devices on ships. This paper summarizes the application trend of wave power generation devices on ships: wave power generation should be used as auxiliary and domestic electricity for ships and wave energy should be combined with other new energy sources. Wave energy application in marine power generation can effectively reduce emissions from ships, which is conducive to the sustainable development of human society. The system mainly included low speed marine main diesel engine, waste heat boiler, electricity generation sub-system of power turbine, electricity generation sub-system of steam turbine, the heat exchange equipment, electricity generation sub-system of organic working medium steam turbine and other equipments. Based on experimental data of main engine and later theoretical calculation, this paper studied the effect rules of electricity generation power, waste heat utilization potential and related parameters of the waste heat utilization system under different main diesel load and ambient temperature.

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Gkanas, Evangelos I., Martin Khzouz, George Skodras, and Sofoklis Makridis. "Parametric Study on the Heat Management of Metal Hydride Tanks for Sustainable Building Applications." International Journal of Computational Physics Series 1, no. 1 (February 27, 2018): 13–29. http://dx.doi.org/10.29167/a1i1p13-29.

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In the current work, a parametric numerical analysis of MmNi4.6Al0.4 is studied during the hydrogenation process; under effective heat management. A fully validated with solid experimental results mathematical model including the heat, mass and momentum conservation equations is introduced, described and incorporated on a Multiphysics software (COMSOL Multiphysics). The target of the current study was the storage of 200g of hydrogen per hydrogenation/dehydrogenation cycle within 5000s. The heat management during the hydrogenation process was performed by the usage of plain-embedded cooling tubes in combination with extended surfaces. The parameters examined in the current work were; the fin thickness, the fin number (metal hydride thickness) and the coolants’ flowrate within the tubes. A non-dimensional parameter was utilised for the evaluation of the heat management process. The results showed that the optimum fin number was 60, in combination with fin thickness 5-8mm and the value of the heat transfer coefficient 2000-5000 Wm-2K-1.

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Journal articles on the topic 'Sustainable usage of waste heat'

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