Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery

This paper presents the performance assessment and working fluid selection for a novel integrated vapor compression cycle-organic Rankine cycle system (i-VCC-ORC), which recovers ultra-low-temperature waste heat rejected (50 °C) by the condenser of a vapor compression cycle (VCC). The analyses are c...

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Autores principales: Muhammad Asim, Faiza Kashif, Jamal Umer, Jahan Zeb Alvi, Muhammad Imran, Sheheryar Khan, Abdul Wasy Zia, Michael K. H. Leung
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:a70d2d2271484025866817f9deb16f792021-11-11T19:21:31ZPerformance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery10.3390/su1321115922071-1050https://doaj.org/article/a70d2d2271484025866817f9deb16f792021-10-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/11592https://doaj.org/toc/2071-1050This paper presents the performance assessment and working fluid selection for a novel integrated vapor compression cycle-organic Rankine cycle system (i-VCC-ORC), which recovers ultra-low-temperature waste heat rejected (50 °C) by the condenser of a vapor compression cycle (VCC). The analyses are carried out for a vapor compression cycle of a refrigeration capacity (heat input) of 35kW along with the component sizing of the organic Rankine cycle (ORC). The effects of the operational parameters on integrated system performance were investigated. The integrated system performance is estimated in terms of net COP, cycle thermal efficiency and exergy efficiency by completely utilizing and recovering the heat rejected by the condenser of the VCC system. R600a-R141b with COP<sub>net</sub> (3.54) and ORC thermal efficiency (3.05%) is found to be the most suitable VCC-ORC working fluid pair. The integration of the vapor compression refrigeration cycle with the organic Rankine cycle increases the COP of the system by 12.5% as compared to the standalone COP of the vapor compression system. Moreover, the sensitivity analysis results show that there exists an optimum operating condition that maximizes the thermal performance of the integrated system.Muhammad AsimFaiza KashifJamal UmerJahan Zeb AlviMuhammad ImranSheheryar KhanAbdul Wasy ZiaMichael K. H. LeungMDPI AGarticlevapor compression cycleorganic Rankine cyclewaste heat recoveryCOPexergy efficiencythermal efficiencyEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 11592, p 11592 (2021)
institution DOAJ
collection DOAJ
language EN
topic vapor compression cycle
organic Rankine cycle
waste heat recovery
COP
exergy efficiency
thermal efficiency
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
spellingShingle vapor compression cycle
organic Rankine cycle
waste heat recovery
COP
exergy efficiency
thermal efficiency
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
Muhammad Asim
Faiza Kashif
Jamal Umer
Jahan Zeb Alvi
Muhammad Imran
Sheheryar Khan
Abdul Wasy Zia
Michael K. H. Leung
Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
description This paper presents the performance assessment and working fluid selection for a novel integrated vapor compression cycle-organic Rankine cycle system (i-VCC-ORC), which recovers ultra-low-temperature waste heat rejected (50 °C) by the condenser of a vapor compression cycle (VCC). The analyses are carried out for a vapor compression cycle of a refrigeration capacity (heat input) of 35kW along with the component sizing of the organic Rankine cycle (ORC). The effects of the operational parameters on integrated system performance were investigated. The integrated system performance is estimated in terms of net COP, cycle thermal efficiency and exergy efficiency by completely utilizing and recovering the heat rejected by the condenser of the VCC system. R600a-R141b with COP<sub>net</sub> (3.54) and ORC thermal efficiency (3.05%) is found to be the most suitable VCC-ORC working fluid pair. The integration of the vapor compression refrigeration cycle with the organic Rankine cycle increases the COP of the system by 12.5% as compared to the standalone COP of the vapor compression system. Moreover, the sensitivity analysis results show that there exists an optimum operating condition that maximizes the thermal performance of the integrated system.
format article
author Muhammad Asim
Faiza Kashif
Jamal Umer
Jahan Zeb Alvi
Muhammad Imran
Sheheryar Khan
Abdul Wasy Zia
Michael K. H. Leung
author_facet Muhammad Asim
Faiza Kashif
Jamal Umer
Jahan Zeb Alvi
Muhammad Imran
Sheheryar Khan
Abdul Wasy Zia
Michael K. H. Leung
author_sort Muhammad Asim
title Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
title_short Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
title_full Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
title_fullStr Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
title_full_unstemmed Performance Assessment and Working Fluid Selection for Novel Integrated Vapor Compression Cycle and Organic Rankine Cycle for Ultra Low Grade Waste Heat Recovery
title_sort performance assessment and working fluid selection for novel integrated vapor compression cycle and organic rankine cycle for ultra low grade waste heat recovery
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/a70d2d2271484025866817f9deb16f79
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AT muhammadimran performanceassessmentandworkingfluidselectionfornovelintegratedvaporcompressioncycleandorganicrankinecycleforultralowgradewasteheatrecovery
AT sheheryarkhan performanceassessmentandworkingfluidselectionfornovelintegratedvaporcompressioncycleandorganicrankinecycleforultralowgradewasteheatrecovery
AT abdulwasyzia performanceassessmentandworkingfluidselectionfornovelintegratedvaporcompressioncycleandorganicrankinecycleforultralowgradewasteheatrecovery
AT michaelkhleung performanceassessmentandworkingfluidselectionfornovelintegratedvaporcompressioncycleandorganicrankinecycleforultralowgradewasteheatrecovery
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