Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle

The critical temperature (Tcr) is one of the important thermophysical properties of the working fluid, and it has a crucial effect on the output parameters of thermodynamic cycles used for power generation. This study aims to show the effect of the working fluids Tcr on the cycle thermal performance...

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Main Authors: Attila R. Imre, Aram M. Ahmed
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:International Journal of Thermofluids
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666202723001337
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author Attila R. Imre
Aram M. Ahmed
author_facet Attila R. Imre
Aram M. Ahmed
author_sort Attila R. Imre
collection DOAJ
description The critical temperature (Tcr) is one of the important thermophysical properties of the working fluid, and it has a crucial effect on the output parameters of thermodynamic cycles used for power generation. This study aims to show the effect of the working fluids Tcr on the cycle thermal performance (thermal efficiency (ηth) and net-work output (Wnet) at the same heat source/heat sink temperature. For this purpose, 13 alkanes and 10 halogenated alkanes working fluids were investigated. Two different kinds of subcritical cycles, namely the Organic Rankine Cycle (ORC) and Trilateral Flash Cycle (TFC), were investigated. Pure and mixed (with various compositions) working fluids were used. Finally, it has been shown that although the critical temperature is an important factor, it can be correlated with output parameters only by using chemically similar working fluids.
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spelling doaj.art-63b34629ec5c4e21b80b5451481b56be2023-12-07T05:30:41ZengElsevierInternational Journal of Thermofluids2666-20272023-11-0120100417Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycleAttila R. Imre0Aram M. Ahmed1Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Energy Engineering, Műegyetem rkp. 3, Budapest 1111, Hungary; Centre for Energy Research, Department of Thermohydraulics, POB. 49, H-1525 Budapest, HungaryBudapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Energy Engineering, Műegyetem rkp. 3, Budapest 1111, Hungary; Northern Technical University, Technical Engineering College of Kirkuk, Kirkuk 36001, Iraq; Corresponding author at: Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Energy Engineering, Műegyetem rkp. 3, Budapest 1111, Hungary.The critical temperature (Tcr) is one of the important thermophysical properties of the working fluid, and it has a crucial effect on the output parameters of thermodynamic cycles used for power generation. This study aims to show the effect of the working fluids Tcr on the cycle thermal performance (thermal efficiency (ηth) and net-work output (Wnet) at the same heat source/heat sink temperature. For this purpose, 13 alkanes and 10 halogenated alkanes working fluids were investigated. Two different kinds of subcritical cycles, namely the Organic Rankine Cycle (ORC) and Trilateral Flash Cycle (TFC), were investigated. Pure and mixed (with various compositions) working fluids were used. Finally, it has been shown that although the critical temperature is an important factor, it can be correlated with output parameters only by using chemically similar working fluids.http://www.sciencedirect.com/science/article/pii/S2666202723001337Critical temperatureSubcritical cyclesWorking fluidsThermal efficiencyNet power output
spellingShingle Attila R. Imre
Aram M. Ahmed
Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
International Journal of Thermofluids
Critical temperature
Subcritical cycles
Working fluids
Thermal efficiency
Net power output
title Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
title_full Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
title_fullStr Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
title_full_unstemmed Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
title_short Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle
title_sort effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic rankine cycle
topic Critical temperature
Subcritical cycles
Working fluids
Thermal efficiency
Net power output
url http://www.sciencedirect.com/science/article/pii/S2666202723001337
work_keys_str_mv AT attilarimre effectoftheworkingfluidscriticaltemperatureonthermalperformancefortrilateralflashcycleandorganicrankinecycle
AT arammahmed effectoftheworkingfluidscriticaltemperatureonthermalperformancefortrilateralflashcycleandorganicrankinecycle