Mathematical model of bypass behaviors used in scroll compressor

被引：24
作者：
Liu, Yangguang [1 ]
Hung, Chinghua [1 ]
Chang, Yuchoung
机构：
[1] Natl Chiao Tung Univ, Dept Mech Engn, Hsinchu 300, Taiwan
来源：
APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 5-6期
关键词：
Bypass; Valves; Scroll compressor; Efficiency;
D O I：
10.1016/j.applthermaleng.2008.05.023
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper has constructed a bypass mechanism mathematical model in scroll-type compressor (STC) and has been integrated into a simulation package to predict the STC performance. The bypass mechanism,when added to a fixed scroll, is used to prevent over-compression and liquid slugging. Under five specified operating conditions, it was found that the STC with the bypass action increased the isentropic efficiency 2.5-10% more than the STC without the bypass action. Meanwhile, the calculated results of the developed model have been validated by a STC testing apparatus. In addition, it was found that the design of the bypass mechanism in the paper, can completely avoid over-compression and pressure discrepancy while the STC is in operation. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1058 / 1066
页数：9
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