A second law analysis and entropy generation minimization of an absorption chiller

Aung Myat, Kyaw Thu, Young Deuk Kim, A. Chakraborty, Won Gee Chun, Kim Choon Ng

Research output: Contribution to journalArticle

54 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2405-2413
Number of pages9
JournalApplied Thermal Engineering
Volume31
Issue number14-15
DOIs
Publication statusPublished - Oct 1 2011
Externally publishedYes

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Entropy
Absorption refrigeration
Cooling water
Vapor pressure
Heat transfer coefficients
Numerical models
Lithium
Genetic algorithms
Temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

A second law analysis and entropy generation minimization of an absorption chiller. / Myat, Aung; Thu, Kyaw; Kim, Young Deuk; Chakraborty, A.; Chun, Won Gee; Ng, Kim Choon.

In: Applied Thermal Engineering, Vol. 31, No. 14-15, 01.10.2011, p. 2405-2413.

Research output: Contribution to journalArticle

Myat, Aung ; Thu, Kyaw ; Kim, Young Deuk ; Chakraborty, A. ; Chun, Won Gee ; Ng, Kim Choon. / A second law analysis and entropy generation minimization of an absorption chiller. In: Applied Thermal Engineering. 2011 ; Vol. 31, No. 14-15. pp. 2405-2413.
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