Moderately high temperature water source heat-pumps using a near-azeotropic refrigerant mixture

被引:41
作者
Liu, NX [1 ]
Lin, S [1 ]
Han, LZ [1 ]
Zhu, MS [1 ]
机构
[1] Tsing Hua Univ, Dept Thermal Engn, Beijing 100084, Peoples R China
关键词
heat pumps; water source heat pump; refrigerant mixtures;
D O I
10.1016/j.apenergy.2004.02.005
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A ternary mixture of R124/R142b/R600a, named HTR01, for moderately high temperature heat pumps, was developed. Tests of material compatibility and oil miscibility showed that the mixture could be used with a R22 compressor in an HTR01 heat-pump system. A 2.92 kW moderately high temperature water source heat pump system was set up with HTR01 as the refrigerant to study the system performance with HTR01. Then, a 300 kW moderately high temperature water source heat pump system was built with HTR01 as the refrigerant to test the performance with a geothermal hot water source. The test showed that the condenser outlet water temperature could reach and hold on about 90 degrees C with a high coefficient of performance. (c) 2004 Published by Elsevier Ltd.
引用
收藏
页码:435 / 447
页数:13
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