Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source

The Organic Rankine Cycle (ORC) is a well-established way to recover energy from a single waste heat source. This paper aims to select the suitable configuration, number of loops, and working fluids for the Multi-Loop ORC (MLORC) by using multi-objective optimization. The thermodynamic and economic...

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Autores principales:	Youyi Li, Tianhao Tang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Organic Rankine Cycle configuration selection number of loops selection economic analysis fluid selection multi-objective optimization Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/5c7e16169c7c40269ba0cb58ae61fb73
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spelling	oai:doaj.org-article:5c7e16169c7c40269ba0cb58ae61fb732021-11-25T17:29:38ZConfiguration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source10.3390/e231114351099-4300https://doaj.org/article/5c7e16169c7c40269ba0cb58ae61fb732021-10-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1435https://doaj.org/toc/1099-4300The Organic Rankine Cycle (ORC) is a well-established way to recover energy from a single waste heat source. This paper aims to select the suitable configuration, number of loops, and working fluids for the Multi-Loop ORC (MLORC) by using multi-objective optimization. The thermodynamic and economic performance of MLORC in three various configurations was analyzed. Multi-objective optimizations of the series and parallel MLORC using different working fluid groups were conducted to find the optimal configuration, number of loops, and working fluid combination. The analysis results show that the series–parallel MLORC performed the worst among the three configurations. The optimization results reveal that series MLORC has a higher exergy efficiency than the parallel MLORC. The exergy efficiency of the optimal solution in series dual-loop, triple-loop, and quadruple-loop ORC is 9.3%, 7.98%, and 6.23% higher than that of parallel ORC, respectively. Furthermore, dual-loop is the optimal number of cycles for recovering energy from a single heat source, according to the grey relational grade. Finally, the series dual-loop ORC using cyclohexane\cyclohexane was the suitable configuration for utilizing a single waste heat source. The exergy efficiency and levelized cost of electricity of the series dual-loop ORC with the optimal parameters are 62.18% and 0.1509 $/kWh, respectively.Youyi LiTianhao TangMDPI AGarticleOrganic Rankine Cycleconfiguration selectionnumber of loops selectioneconomic analysisfluid selectionmulti-objective optimizationScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1435, p 1435 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Organic Rankine Cycle configuration selection number of loops selection economic analysis fluid selection multi-objective optimization Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	Organic Rankine Cycle configuration selection number of loops selection economic analysis fluid selection multi-objective optimization Science Q Astrophysics QB460-466 Physics QC1-999 Youyi Li Tianhao Tang Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
description	The Organic Rankine Cycle (ORC) is a well-established way to recover energy from a single waste heat source. This paper aims to select the suitable configuration, number of loops, and working fluids for the Multi-Loop ORC (MLORC) by using multi-objective optimization. The thermodynamic and economic performance of MLORC in three various configurations was analyzed. Multi-objective optimizations of the series and parallel MLORC using different working fluid groups were conducted to find the optimal configuration, number of loops, and working fluid combination. The analysis results show that the series–parallel MLORC performed the worst among the three configurations. The optimization results reveal that series MLORC has a higher exergy efficiency than the parallel MLORC. The exergy efficiency of the optimal solution in series dual-loop, triple-loop, and quadruple-loop ORC is 9.3%, 7.98%, and 6.23% higher than that of parallel ORC, respectively. Furthermore, dual-loop is the optimal number of cycles for recovering energy from a single heat source, according to the grey relational grade. Finally, the series dual-loop ORC using cyclohexane\cyclohexane was the suitable configuration for utilizing a single waste heat source. The exergy efficiency and levelized cost of electricity of the series dual-loop ORC with the optimal parameters are 62.18% and 0.1509 $/kWh, respectively.
format	article
author	Youyi Li Tianhao Tang
author_facet	Youyi Li Tianhao Tang
author_sort	Youyi Li
title	Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
title_short	Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
title_full	Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
title_fullStr	Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
title_full_unstemmed	Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source
title_sort	configuration selection of the multi-loop organic rankine cycle for recovering energy from a single source
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5c7e16169c7c40269ba0cb58ae61fb73
work_keys_str_mv	AT youyili configurationselectionofthemultilooporganicrankinecycleforrecoveringenergyfromasinglesource AT tianhaotang configurationselectionofthemultilooporganicrankinecycleforrecoveringenergyfromasinglesource
_version_	1718412284943925248

Configuration Selection of the Multi-Loop Organic Rankine Cycle for Recovering Energy from a Single Source

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