Journal
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
Volume 45, Issue 6, Pages 627-633Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ijthermalsci.2005.08.005
Keywords
finite-time thermodynamics; thermodynamic optimization absorption heat pump; heat transfer law; optimal performance
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An endoreversible four-heat-reservoir absorption heat pump cycle model with a generalized heat transfer law Q proportional to Delta(T-n) is established. The general relation between the coefficient of performance (COP) and the heating load with Q proportional to Alpha (T-n) is deduced. The fundamental optimal relation, the optimal temperatures of working substance, as well as the optimal heat transfer surface area distributions with linear phenomenological heat transfer law are derived. Moreover, the effects of heat transfer law on the performance of absorption heat pump are analyzed and the performance comparison before and after optimizing the distribution of the total heat transfer surface area is performed by numerical example. (C) 2005 Elsevier SAS. All rights reserved.
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