Performance analysis and optimisation of a reheat organic Rankine cycle

Autor:	Youcef Abdellah Ayoub Laouid, Cheikh Kezrane, Yahia Lasbet, Apostolos Pesyridis
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	organic rankine cycle reheat pressure thermal conductance waste heat recovery exergy optimisation Renewable energy sources TJ807-830
Zdroj:	International Journal of Sustainable Energy, Vol 41, Iss 7, Pp 909-931 (2022)
Druh dokumentu:	article
ISSN:	1478-6451 1478-646X 14786451
DOI:	10.1080/14786451.2021.1990294
Popis:	A reheat Organic Rankine Cycle (ORC) is investigated to recuperate a low-grade heat source using six different organic working fluids (WFs). The results indicate that wet fluids produce more power output compared to dry and isentropic fluids. The reheat pressures of the selected WFs were optimised to maximise the exergy efficiency and minimise the total UA. Reheat pressure ranges of 27–48% and 45–54% of the evaporation pressure were obtained, for ORCs with and without IHE, respectively. A maximum of 49.1% exergetic efficiency is achieved by the addition of IHE: a 13.6% improvement compared to the ORC without IHE. Finally, the results indicate that R236ea and propyne are the best WFs for the ORC with and without IHE, respectively.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/d15e26ae854647ee9cda7151be5c188d Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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