Optimization of a scroll compressor for liquid flooding

被引:19
作者
Bell, Ian H. [1 ]
Groll, Eckhard A. [1 ]
Braun, James E. [1 ]
King, Galen B. [1 ]
Horton, W. Travis [1 ]
机构
[1] Purdue Univ, Dept Mech Engn, W Lafayette, IN 47906 USA
来源
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2012年 / 35卷 / 07期
关键词
Scroll compressors; Liquid flooding; Isothermal compression; High efficiency;
D O I
10.1016/j.ijrefrig.2012.07.011
中图分类号
O414.1 [热力学];
学科分类号
摘要
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%. (C) 2012 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码:1901 / 1913
页数:13
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