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Performance enhancement of thermoelectric waste heat recovery system by using metal foam inserts
Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China.
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2016 (engelsk)Inngår i: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 124, nr September, s. 13-19Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

This paper proposed a type of metal foams filled thermoelectric generator (TEG) for waste heat recovery. Metal foam inserts of three kinds of pore densities (5 PPI, 10 PPI and 20 PPI) were included, considering the heat transfer enhancing features of porous metal mediums. A flow channel detachable prototype was designed to experimentally investigate the influence of metal foams on the performance of thermoelectric waste heat recovery (TWHR) system. The operating parameters were further experimented to improve the thermoelectric power generation efficiency, including hot air inlet temperature, cold water flow rate, metal foam pore density and thermoelectric module (TEM) connecting mode. Moreover, the TWHR performance of the system was evaluated on power generation efficiency, heat exchange effectiveness and waste heat recovery rate, respectively. The results showed that filling metal foams in the flow channels could effectively enhance the performance of the TWHR system. The maximum power generation efficiency was 2.05%, when the TEG was filled with 5 PPI metal foams. It was 29.75% higher than the value of unfilled TEG.

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2016. Vol. 124, nr September, s. 13-19
Emneord [en]
Heat exchanger, Metal foam, Thermoelectric generator, Waste heat recovery, Channel flow, Efficiency, Electronic equipment, Flow of water, Foams, Heat exchangers, Heat transfer, Metals, Thermoelectric equipment, Thermoelectric power, Thermoelectricity, Waste heat, Waste heat utilization, Connecting mode, Metal foams, Operating parameters, Performance enhancements, Power generation efficiency, Thermoelectric generators, Thermoelectric modules, Waste heat recovery systems, Metal recovery
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URN: urn:nbn:se:mdh:diva-32405DOI: 10.1016/j.enconman.2016.07.006ISI: 000382794100002Scopus ID: 2-s2.0-84977669281OAI: oai:DiVA.org:mdh-32405DiVA, id: diva2:950182
Tilgjengelig fra: 2016-07-28 Laget: 2016-07-28 Sist oppdatert: 2017-11-28bibliografisk kontrollert

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