Design optimization of scroll compressor applied for frictional losses evaluation

Yangguang Liu, Ching-Hua Hung*, Yuchoung Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


This paper develops a design optimization procedure in scroll-type compressor (STC). By integrating the verified STC simulation model with an optimum solver, a frictional losses reduced problem of bearing components has been investigated. After the optimum search, the frictional losses can be reduced in range of 14.1-18.1% at all testing conditions with specified constraints. Herein, the design modifications of crank and upper bearings are compromised between reduction of frictional losses and maintenance of hydrodynamic lubrication. In addition, the narrower and shorter design of lower bearing and smaller one of thrust bearing can reduce frictional losses too. Furthermore, wider selection of materials in all the bearings can be adopted with the satisfied strength constraint. By using this procedure, various optimum combinations of parameters can be found for different STC design considerations.

Original languageEnglish
Pages (from-to)615-624
Number of pages10
JournalInternational Journal of Refrigeration
Issue number3
StatePublished - 1 May 2010


  • Friction
  • Loss
  • Modelling
  • Scroll compressor
  • Simulation

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