Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System

The performance of a combined ejector-absorption cooling cycle has the potential for further investigation. Improving the performance of the system can be achieved by adding a flash tank to the combined cycle. In this study, an analysis based on the second law of thermodynamics is used to evaluate t...

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Main Authors:	Ranj, Sirwan, Alghoul, M.A., K., Sopian, Yusoff, Ali
Format:	Article
Language:	English English
Published:	Elsevier Ltd 2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/1/Thermodynamic_analysis_of_an_ejector-flash_tank-absorption_cooling_system.pdf http://umpir.ump.edu.my/id/eprint/6353/4/6.pdf

id	ump-6353
recordtype	eprints
spelling	ump-63532016-04-01T08:27:36Z http://umpir.ump.edu.my/id/eprint/6353/ Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System Ranj, Sirwan Alghoul, M.A. K., Sopian Yusoff, Ali TJ Mechanical engineering and machinery The performance of a combined ejector-absorption cooling cycle has the potential for further investigation. Improving the performance of the system can be achieved by adding a flash tank to the combined cycle. In this study, an analysis based on the second law of thermodynamics is used to evaluate the cycle before and after modification. A mathematical model is developed to calculate the entropy generation in each component and the total entropy generation of the system, as well as to evaluate the exergy losses. Under operating conditions that match the ambient conditions and a certain application in Malaysia (Tgen = 85 °C; Tcond = Tabs = 30 °C; and Tevp = 0 °C), the coefficient of performance (COP) and exergetic efficiency (COPexe) values before and after modification are (0.844, 0.875) and (0.459, 0.476), respectively. The maximum exergy loss is found in the evaporator in both cycles, followed by the condenser and the absorber. A statistical t-test is carried out to establish the significance of the differences in the COP and the COPexe before and after modification. It is found that there is significant improvement in combined cycle performance after modification. Overall, adding the flash tank to the combined cycle can be considered a novel enhancement. Elsevier Ltd 2012 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6353/1/Thermodynamic_analysis_of_an_ejector-flash_tank-absorption_cooling_system.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/6353/4/6.pdf Ranj, Sirwan and Alghoul, M.A. and K., Sopian and Yusoff, Ali (2012) Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System. Applied Thermal Engineering, 58 (1-2). pp. 85-97. ISSN 1359-4311 http://dx.doi.org/10.1016/j.applthermaleng.2013.03.031 DOI: 10.1016/j.applthermaleng.2013.03.031
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ranj, Sirwan Alghoul, M.A. K., Sopian Yusoff, Ali Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
description	The performance of a combined ejector-absorption cooling cycle has the potential for further investigation. Improving the performance of the system can be achieved by adding a flash tank to the combined cycle. In this study, an analysis based on the second law of thermodynamics is used to evaluate the cycle before and after modification. A mathematical model is developed to calculate the entropy generation in each component and the total entropy generation of the system, as well as to evaluate the exergy losses. Under operating conditions that match the ambient conditions and a certain application in Malaysia (Tgen = 85 °C; Tcond = Tabs = 30 °C; and Tevp = 0 °C), the coefficient of performance (COP) and exergetic efficiency (COPexe) values before and after modification are (0.844, 0.875) and (0.459, 0.476), respectively. The maximum exergy loss is found in the evaporator in both cycles, followed by the condenser and the absorber. A statistical t-test is carried out to establish the significance of the differences in the COP and the COPexe before and after modification. It is found that there is significant improvement in combined cycle performance after modification. Overall, adding the flash tank to the combined cycle can be considered a novel enhancement.
format	Article
author	Ranj, Sirwan Alghoul, M.A. K., Sopian Yusoff, Ali
author_facet	Ranj, Sirwan Alghoul, M.A. K., Sopian Yusoff, Ali
author_sort	Ranj, Sirwan
title	Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
title_short	Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
title_full	Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
title_fullStr	Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
title_full_unstemmed	Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System
title_sort	thermodynamic analysis of an ejector-flash tank-absorption cooling system
publisher	Elsevier Ltd
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/ http://umpir.ump.edu.my/id/eprint/6353/1/Thermodynamic_analysis_of_an_ejector-flash_tank-absorption_cooling_system.pdf http://umpir.ump.edu.my/id/eprint/6353/4/6.pdf
first_indexed	2023-09-18T22:02:02Z
last_indexed	2023-09-18T22:02:02Z
_version_	1777414462812192768

Thermodynamic Analysis of an Ejector-Flash Tank-Absorption Cooling System

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