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
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
相关论文
共 14 条
[1]  
AYUB S, 1992, PROCEEDINGS OF THE 1992 INTERNATIONAL COMPRESSOR ENGINEERING CONFERENCE AT PURDUE, VOLS 1-4, P561
[2]  
Beeton WL, 2003, ASHRAE J, V45, P22
[3]   Influence of liquid refrigerant injection on the performance of an inverter-driven scroll compressor [J].
Cho, H ;
Chung, JT ;
Kim, Y .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2003, 26 (01) :87-94
[4]   An investigation of the performance of a scroll compressor under liquid refrigerant injection [J].
Dutta, AK ;
Yanagisawa, T ;
Fukuta, M .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2001, 24 (06) :577-587
[5]  
HALM NP, 1997, THESIS PURDUE U US
[6]  
Hirano T., 1988, Proceedings of International Compressor Engineering Conference at Purdue, P65
[7]  
Ma GY, 2003, INT J REFRIG, V26, P12, DOI 10.1016/S0140-7007(02)00083-X
[8]   Thermodynamic analysis on the performance of a variable speed scroll compressor with refrigerant injection [J].
Park, YC ;
Kim, Y ;
Cho, H .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2002, 25 (08) :1072-1082
[9]  
WANG B, 2006, THESIS TSINGHUA U CH
[10]   Numerical research on the scroll compressor with refrigeration injection [J].
Wang, Baolong ;
Shi, Wenxing ;
Li, Xianting ;
Yan, Qisen .
APPLIED THERMAL ENGINEERING, 2008, 28 (5-6) :440-449