Prediction of Chiller Power Consumption

An Entropy Generation Approach

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Irreversibilities in each component of vapor compression chillers contribute to additional power consumption in chillers. In this study, chiller power consumption was predicted by computing the Carnot reversible work and entropy generated in every component of the chiller. Thermodynamic properties, namely, enthalpy and entropy of the entire refrigerant cycle were obtained by measuring the pressure and temperature at the inlet and outlet of each primary component of a 15-kW R22 water-cooled scroll chiller. Entropy generation of each component was then calculated using the first and second laws of thermodynamics. Good correlation was found between the measured and computed chiller power consumption. This irreversibility analysis can be also effectively used as a performance monitoring tool in vapor compression chillers, as higher entropy generation is anticipated during faulty operations.

Original languageEnglish
Pages (from-to)389-395
Number of pages7
JournalHeat Transfer Engineering
Volume38
Issue number4
DOIs
Publication statusPublished - 4 Mar 2017

Fingerprint

Electric power utilization
Entropy
entropy
predictions
Vapors
vapors
refrigerants
Refrigerants
outlets
Enthalpy
Thermodynamic properties
thermodynamic properties
enthalpy
Thermodynamics
thermodynamics
cycles
Water
Monitoring
water
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Prediction of Chiller Power Consumption : An Entropy Generation Approach. / Saththasivam, Jayaprakash; Choon Ng, Kim.

In: Heat Transfer Engineering, Vol. 38, No. 4, 04.03.2017, p. 389-395.

Research output: Contribution to journalArticle

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