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A conceptual framework for waste heat recovery from compression ignition engines: Technologies, working fluids & heat exchangers
•The current article reviews the potentials of waste heat recovery systems in diesel engines.•The study highlights the importance of working fluids and their performance in waste heat recovery systems.•This research work reviews the importance of heat exchanger design and the choice of waste heat re...
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Published in: | Energy conversion and management. X 2022-12, Vol.16, p.100309, Article 100309 |
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description | •The current article reviews the potentials of waste heat recovery systems in diesel engines.•The study highlights the importance of working fluids and their performance in waste heat recovery systems.•This research work reviews the importance of heat exchanger design and the choice of waste heat recovery systems.
In recent years, the awareness about sustainable energy production using renewable energy sources has increased drastically due to the depletion of fossil fuels and the implementation of environmental protection measures. The effective energy conversion rate of conventional combustion engines stands at 35% whereas the rest of the energy gets dissipated as waste heat to cool the engine. Several Waste Heat Recovery (WHR) methods have been developed so far such as the Organic Rankine Cycle (ORC), thermoelectric generator (TEG), Stirling engine (SE) and the Electric turbo-compounding (ETC). Various research works have been conducted so far to enhance the efficiency of combustion engines through innovative heat recovery systems and by reducing the energy losses, especially in automotive applications. The novelty of the current review article lies in analyzing different aspects of the WHR technologies in terms of increasing the fuel economy and environmental compliance in diesel engines from the perspectives of technology and application feasibility. Further, the current study is also an initiative to present a comprehensive review of different criteria regarding working fluid selection, heat exchanger parameters and their optimization. The results of this article infer that waste heat can be used in an attractive way to produce additional power efficiently, which in turn can result in maximum overall efficiency and optimal usage of the waste energy through the implementation of an exhaust heat recovery system. The current study also recommends that the fuel economy of compression ignition engines can be significantly improved by paying special attention to innovative heat exchanger designs, different parameters of the heat exchangers and working fluid selection. |
doi_str_mv | 10.1016/j.ecmx.2022.100309 |
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In recent years, the awareness about sustainable energy production using renewable energy sources has increased drastically due to the depletion of fossil fuels and the implementation of environmental protection measures. The effective energy conversion rate of conventional combustion engines stands at 35% whereas the rest of the energy gets dissipated as waste heat to cool the engine. Several Waste Heat Recovery (WHR) methods have been developed so far such as the Organic Rankine Cycle (ORC), thermoelectric generator (TEG), Stirling engine (SE) and the Electric turbo-compounding (ETC). Various research works have been conducted so far to enhance the efficiency of combustion engines through innovative heat recovery systems and by reducing the energy losses, especially in automotive applications. The novelty of the current review article lies in analyzing different aspects of the WHR technologies in terms of increasing the fuel economy and environmental compliance in diesel engines from the perspectives of technology and application feasibility. Further, the current study is also an initiative to present a comprehensive review of different criteria regarding working fluid selection, heat exchanger parameters and their optimization. The results of this article infer that waste heat can be used in an attractive way to produce additional power efficiently, which in turn can result in maximum overall efficiency and optimal usage of the waste energy through the implementation of an exhaust heat recovery system. The current study also recommends that the fuel economy of compression ignition engines can be significantly improved by paying special attention to innovative heat exchanger designs, different parameters of the heat exchangers and working fluid selection.</description><subject>Compression Ignition Engines</subject><subject>Heat Exchangers</subject><subject>Organic Rankine Cycle</subject><subject>Waste Heat Recovery</subject><subject>Working fluids</subject><issn>2590-1745</issn><issn>2590-1745</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp9kT1v2zAQhoWgARKk-QOZOHWqHX6JtIouRtCkBgJ0SWbiTB5lupJokHISb_3ppaKi6NTpDod7n_t4q-qG0SWjTN3ul2j7tyWnnJcCFbQ5qy553dAF07L-8E9-UV3nvKeUcsFqJdll9WtNbBwsHsYjdMQn6PE1pp_Ex0ReIY9IdggjSWjjC6ZT6Yh9UfSHhDmHOJDQDmGcEhzaMGD-Qp7Q7obYxTZg_kwmWhha4rtjcJl8mnn4ZncwtJjyx-rcQ5fx-k-8qp7vvz3dfV88_njY3K0fF1YyOi5q52WtYKulBKmV5X5lG-0akCtht5wyt9JSMQuN4uiUYNhYFFoL3tQNAyeuqs3MdRH25pBCD-lkIgTzXoipNZDGYDs0yBTTQuh6y1gZKkChd9avnNDCA1WFxWeWTTHnhP4vj1EzWWL2ZrLETJaY2ZIi-jqLsFz5EjCZbAOW17tQvjuWNcL_5L8BJdyWUA</recordid><startdate>202212</startdate><enddate>202212</enddate><creator>Douadi, Oumaima</creator><creator>Ravi, Rajesh</creator><creator>Faqir, Mustapha</creator><creator>Essadiqi, Elhachmi</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>DOA</scope></search><sort><creationdate>202212</creationdate><title>A conceptual framework for waste heat recovery from compression ignition engines: Technologies, working fluids & heat exchangers</title><author>Douadi, Oumaima ; Ravi, Rajesh ; Faqir, Mustapha ; Essadiqi, Elhachmi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c410t-5df456ab744a476c2f8c97d9a483cb201d87461ca962ed631e9ce377329591ad3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Compression Ignition Engines</topic><topic>Heat Exchangers</topic><topic>Organic Rankine Cycle</topic><topic>Waste Heat Recovery</topic><topic>Working fluids</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Douadi, Oumaima</creatorcontrib><creatorcontrib>Ravi, Rajesh</creatorcontrib><creatorcontrib>Faqir, Mustapha</creatorcontrib><creatorcontrib>Essadiqi, Elhachmi</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Directory of Open Access Journals</collection><jtitle>Energy conversion and management. X</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Douadi, Oumaima</au><au>Ravi, Rajesh</au><au>Faqir, Mustapha</au><au>Essadiqi, Elhachmi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A conceptual framework for waste heat recovery from compression ignition engines: Technologies, working fluids & heat exchangers</atitle><jtitle>Energy conversion and management. X</jtitle><date>2022-12</date><risdate>2022</risdate><volume>16</volume><spage>100309</spage><pages>100309-</pages><artnum>100309</artnum><issn>2590-1745</issn><eissn>2590-1745</eissn><abstract>•The current article reviews the potentials of waste heat recovery systems in diesel engines.•The study highlights the importance of working fluids and their performance in waste heat recovery systems.•This research work reviews the importance of heat exchanger design and the choice of waste heat recovery systems.
In recent years, the awareness about sustainable energy production using renewable energy sources has increased drastically due to the depletion of fossil fuels and the implementation of environmental protection measures. The effective energy conversion rate of conventional combustion engines stands at 35% whereas the rest of the energy gets dissipated as waste heat to cool the engine. Several Waste Heat Recovery (WHR) methods have been developed so far such as the Organic Rankine Cycle (ORC), thermoelectric generator (TEG), Stirling engine (SE) and the Electric turbo-compounding (ETC). Various research works have been conducted so far to enhance the efficiency of combustion engines through innovative heat recovery systems and by reducing the energy losses, especially in automotive applications. The novelty of the current review article lies in analyzing different aspects of the WHR technologies in terms of increasing the fuel economy and environmental compliance in diesel engines from the perspectives of technology and application feasibility. Further, the current study is also an initiative to present a comprehensive review of different criteria regarding working fluid selection, heat exchanger parameters and their optimization. The results of this article infer that waste heat can be used in an attractive way to produce additional power efficiently, which in turn can result in maximum overall efficiency and optimal usage of the waste energy through the implementation of an exhaust heat recovery system. The current study also recommends that the fuel economy of compression ignition engines can be significantly improved by paying special attention to innovative heat exchanger designs, different parameters of the heat exchangers and working fluid selection.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.ecmx.2022.100309</doi><oa>free_for_read</oa></addata></record> |
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subjects | Compression Ignition Engines Heat Exchangers Organic Rankine Cycle Waste Heat Recovery Working fluids |
title | A conceptual framework for waste heat recovery from compression ignition engines: Technologies, working fluids & heat exchangers |
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