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Title: A second law analysis and entropy generation minimization of an absorption chiller
Authors: Myat, A.
Thu, K.
Kim, Y.-D.
Chakraborty, A.
Chun, W.G.
Ng, K.C. 
Keywords: Absorption refrigeration
Entropy generation
Second law analysis
Issue Date: Oct-2011
Citation: Myat, A., Thu, K., Kim, Y.-D., Chakraborty, A., Chun, W.G., Ng, K.C. (2011-10). A second law analysis and entropy generation minimization of an absorption chiller. Applied Thermal Engineering 31 (14-15) : 2405-2413. ScholarBank@NUS Repository.
Abstract: This paper presents performance analysis of absorption refrigeration system (ARS) using an entropy generation analysis. A numerical model predicts the performance of absorption cycle operating under transient conditions along with the entropy generation computation at assorted heat source temperatures, and it captures also the dynamic changes of lithium bromide solution properties such as concentration, density, vapor pressure and overall heat transfer coefficients. An optimization tool, namely the genetic algorithm (GA), is used as to locate the system minima for all defined domain of heat source and cooling water temperatures. The analysis shows that minimization of entropy generation the in absorption cycle leads to the maximization of the COP. © 2011 Elsevier Ltd. All rights reserved.
Source Title: Applied Thermal Engineering
ISSN: 13594311
DOI: 10.1016/j.applthermaleng.2011.04.004
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