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Entropy 2004, 6(3), 316-326; doi:10.3390/e6030316

Optimal Cooling Load and COP Relationship of a Four-Heat-Reservoir Endoreversible Absorption Refrigeration Cycle

1
Faculty 306, Naval University of Engineering, Wuhan 430033, P.R. China
2
Mechanical Engineering Department, U.S. Naval Academy, Annapolis, MD21402, USA
*
Author to whom correspondence should be addressed.
Received: 5 April 2004 / Accepted: 14 June 2004 / Published: 15 June 2004
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Abstract

On the basis of a four-heat-reservoir endoreversible absorption refrigeration cycle model, another linear heat transfer law [i.e., the heat-flux] is adopted, the fundamental optimal relation between the coefficient of performance (COP) and the cooling load, as well as the maximum cooling load and the corresponding COP of the cycle coupled to constant-temperature heat reservoirs are derived by using finite-time thermodynamics or thermodynamic optimization. The optimal distribution of the heat-transfer surface areas is also obtained. Moreover, the effects of the cycle parameters on the COP and the cooling load of the cycle are studied by detailed numerical examples. The results obtained herein are of importance to the optimal design and performance improvement of an absorption refrigeration cycle.
Keywords: finite time thermodynamics; thermodynamic optimization; four-heat-reservoir endoreversible absorption refrigeration cycle; optimal performance finite time thermodynamics; thermodynamic optimization; four-heat-reservoir endoreversible absorption refrigeration cycle; optimal performance
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chen, L.; Zheng, T.; Sun, F.; Wu, C. Optimal Cooling Load and COP Relationship of a Four-Heat-Reservoir Endoreversible Absorption Refrigeration Cycle. Entropy 2004, 6, 316-326.

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