[en] In two companion papers, simulation models for the working processes of liquid-flooded scroll compressors and expanders have been developed and validated against experimental data. In this study, analytic models are presented for the modes of irreversibility generation in the liquid-flooded scroll compressor including built-in volume ratio maladjustment, pressure drop and leakage. A thermodynamic model is used to derive the ideal volume ratio for a liquid-flooded compressor, which is higher than that of dry compression. An optimum set of built-in volume ratio and scroll base circle radius is found which maximizes the overall isentropic efficiency by minimizing the leakage and pressure drop irreversibilities. The irreversibility generation models are used to optimize a scroll compressor for the Liquid-Flooded Ericsson cycle application. The model predicts scroll compressor overall isentropic efficiency of over 80% (based on the shaft power) at an oil mass fraction of 88%.
Disciplines :
Mechanical engineering
Author, co-author :
Bell, Ian ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Groll, Eckhard
Braun, James
King, Galen
W. Travis, Horton
Language :
English
Title :
Optimization of a scroll compressor for liquid flooding
Bell, I., 2011. Theoretical and Experimental Analysis of Liquid Flooded Compression in Scroll Compressors. Ph.D. thesis, Purdue University. URL: http://docs.lib.purdue.edu/herrick/2/.
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