General thermodynamic framework for understanding the behaviour of absorption chillers

H. T. Chua*, H. K. Toh, A. Malek, K. C. Ng, K. Srinivasan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

In this article, a general definition of the process average temperature has been developed, and the impact of the various dissipative mechanisms on 1/COP of the chiller evaluated. The present component-by-component black box analysis removes the assumptions regarding the generator outlet temperature(s) and the component effective thermal conductances. Mass transfer resistance is also incorporated into the absorber analysis to arrive at a more realistic upper limit to the cooling capacity. Finally, the theoretical foundation for the absorption chiller T-s diagram is derived. This diagrammatic approach only requires the inlet and outlet conditions of the chiller components and can be employed as a practical tool for system analysis and comparison.

Original languageEnglish (US)
Pages (from-to)491-507
Number of pages17
JournalInternational Journal of Refrigeration
Volume23
Issue number7
DOIs
StatePublished - Nov 1 2000
Externally publishedYes

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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