Numerical analysis on the effects of refrigerant injection on the scroll compressor

被引：66
作者：
Wang, Baolong [1 ]
Shi, Wenxing [1 ]
Li, Xianting [1 ]
机构：
[1] Tsinghua Univ, Dept Bldg Sci, Beijing 100084, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Refrigerant injection; Scroll compressor; Inner compression process; PERFORMANCE;
D O I：
10.1016/j.applthermaleng.2008.01.025
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Refrigerant injection is an effective method to improve the performance of the scroll compressor and its system under high compression ratio working conditions. This paper intends to find the exhaustive relationship between the injection parameters and the compressor's performance. Based on a thermodynamic model, the effects of various parameters of refrigerant injection oil general performance and inner compression process of scroll compressor have been investigated. As a result, it is found that the injected scroll compressor will get the maximum indicated efficiency when the ratio of inner compression ratio and outer compression ratio is a right value. The right value is I for the isentropic compression process, and smaller than I for a real compression process. Finally, the effects of all the injection factors oil the compression work, refrigerant mass flow rate, p-h diagram, volumetric efficiency, and indicated efficiency are investigated detailedly. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：37 / 46
页数：10
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