A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines

Despite the higher efficiency advantage, the cost reduction of PV technology has been more successful compared to the dish Stirling engine (DSE) due to the large market volume and sturdy competition. Irrespective of the types of source, there exists a potential of waste heat recovery from Stirling e...

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Autores principales:	Ramachandran Siddharth, Kumar Naveen, Mallina Venkata Timmaraju
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/6537a67a41bb4e4e96b07f023341bb68
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spelling	oai:doaj.org-article:6537a67a41bb4e4e96b07f023341bb682021-11-08T15:18:57ZA Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines2267-124210.1051/e3sconf/202131306001https://doaj.org/article/6537a67a41bb4e4e96b07f023341bb682021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/89/e3sconf_isec2021_06001.pdfhttps://doaj.org/toc/2267-1242Despite the higher efficiency advantage, the cost reduction of PV technology has been more successful compared to the dish Stirling engine (DSE) due to the large market volume and sturdy competition. Irrespective of the types of source, there exists a potential of waste heat recovery from Stirling engines operating at higher temperature regime. Accordingly, to make DSE commercially viable and efficient, innovative ways such as hybridization (combing a bottoming cycle), Co-generation, Tri-generation etc. need to be explored. In this paper, the techno-economic feasibility of hybridization of a typical solar DSE with a bottoming organic Rankine cycle (ORC) via. a heat recovery vapour generator (HRVG) is explored. The overall energetic and exergetic efficiency of the DSE has been improved by 5.79% and 5.64% while recovering the waste heat through a bottoming ORC. The design and effective incorporation of the HRVG with cooler side of the Stirling engine is identified to be crucial for the overall exergetic performance of solar Stirling-ORC. Further, the economic feasibility of a solar String-ORC combination is evaluated in terms of levelized cost of electricity (LCOE) and payback period. Both LCOE and payback period are found to be in comparable range with the PV technology.Ramachandran SiddharthKumar NaveenMallina Venkata TimmarajuEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 313, p 06001 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Ramachandran Siddharth Kumar Naveen Mallina Venkata Timmaraju A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
description	Despite the higher efficiency advantage, the cost reduction of PV technology has been more successful compared to the dish Stirling engine (DSE) due to the large market volume and sturdy competition. Irrespective of the types of source, there exists a potential of waste heat recovery from Stirling engines operating at higher temperature regime. Accordingly, to make DSE commercially viable and efficient, innovative ways such as hybridization (combing a bottoming cycle), Co-generation, Tri-generation etc. need to be explored. In this paper, the techno-economic feasibility of hybridization of a typical solar DSE with a bottoming organic Rankine cycle (ORC) via. a heat recovery vapour generator (HRVG) is explored. The overall energetic and exergetic efficiency of the DSE has been improved by 5.79% and 5.64% while recovering the waste heat through a bottoming ORC. The design and effective incorporation of the HRVG with cooler side of the Stirling engine is identified to be crucial for the overall exergetic performance of solar Stirling-ORC. Further, the economic feasibility of a solar String-ORC combination is evaluated in terms of levelized cost of electricity (LCOE) and payback period. Both LCOE and payback period are found to be in comparable range with the PV technology.
format	article
author	Ramachandran Siddharth Kumar Naveen Mallina Venkata Timmaraju
author_facet	Ramachandran Siddharth Kumar Naveen Mallina Venkata Timmaraju
author_sort	Ramachandran Siddharth
title	A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
title_short	A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
title_full	A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
title_fullStr	A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
title_full_unstemmed	A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines
title_sort	comprehensive perspective of waste heat recovery potential from solar stirling engines
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/6537a67a41bb4e4e96b07f023341bb68
work_keys_str_mv	AT ramachandransiddharth acomprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines AT kumarnaveen acomprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines AT mallinavenkatatimmaraju acomprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines AT ramachandransiddharth comprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines AT kumarnaveen comprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines AT mallinavenkatatimmaraju comprehensiveperspectiveofwasteheatrecoverypotentialfromsolarstirlingengines
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A Comprehensive Perspective of Waste Heat Recovery Potential from Solar Stirling Engines

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