Centrifugal chillers: Thermodynamic modelling and a diagnostic case study

J. M. Gordon*, Kim Choon Ng, Hui Tong Chua

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

120 Scopus citations


The diagnostic capability of a simple thermodynamic model for chiller performance is illustrated by a case study for a commercial, installed centrifugal chiller. Performance data were measured both prior to, and subsequent to, chiller maintenance that improved chiller efficiency. Using these experimental measurements, we show that the simple thermodynamic model, originally developed for reciprocating and absorption chillers, (1) succeeds in predicting the fundamental relation between coefficient of performance and cooling rate for the centrifugal chiller, and (2) permits a clear diagnostic analysis of heat exchanger fouling on chiller performance.

Original languageEnglish (US)
Pages (from-to)253-257
Number of pages5
JournalInternational Journal of Refrigeration
Issue number4
StatePublished - May 1995
Externally publishedYes


  • centrifugal chiller
  • chiller performance
  • cooling capacity
  • irreversibilities
  • thermodynamic model

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering


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