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:: Volume 11, Issue 3 (Autumn 2024) ::
تبدیل انرژی 2024, 11(3): 91-103 Back to browse issues page
COP/exergy analysis of a heat pump coupled with scroll compressor systems at different wintry ambient temperatures
Mahdi Norouzi * 1, Mohsen Ghazikhani2
1- Department of Mechanical Engineering, Larestan University, Lar, Iran. , norozi347@yahoo.com
2- Department of Mechanical Engineering, School of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
Abstract:   (11 Views)
In this work, the COP/exergy analysis of a Heat Pump System Coupled with a Scroll Compressor (HPSCSC) is investigated. The experimental data was used to analyse the energy/exergy of HPSCSC at different Relative Intermediate Pressure (RIP) and wintry temperature to make clear the optimum operating condition based on more COP and extra capability. Moreover, an Energy Input Capacity (EIC) was defined to suggest the optimum operating of the system. The investigation of irreversibility in the components of the heat pump shows that the most important losses are generated in the Compressor (65-80%) and the condenser (12-15%).Also, the results confirm that even at very low ambient temperatures (-15oC) -where the COP drops-, the use of less RIP leads to an acceptable EIC and improvement in COP. The results further indicated that when the RIP exceeds 1.2, the energy transfer from the condenser remains relatively constant across various winery temperatures. Furthermore, in this study, a relation for the optimum RIP against wintry ambient temperature for an acceptable EIC and higher COP has been presented, which falls between 1.1 and 1.5.
Keywords: heat pump coupled with scroll compressor systems, wintry ambient temperatures, exergy analysis, COP, Relative Intermediate Pressure
Full-Text [PDF 730 kb]   (9 Downloads)    
Type of Study: Research | Subject: Thermodynamics
Received: 2024/09/15 | Accepted: 2024/11/30 | Published: 2024/11/30
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Norouzi M, Ghazikhani M. COP/exergy analysis of a heat pump coupled with scroll compressor systems at different wintry ambient temperatures. تبدیل انرژی 2024; 11 (3) :91-103
URL: http://jeed.dezful.iau.ir/article-1-514-en.html
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Volume 11, Issue 3 (Autumn 2024) Back to browse issues page
مجله علمی تخصصی مهندسی مکانیک تبدیل انرژی Journal of Energy Conversion
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