文献类型：期刊文献

英文题名：Experimental Analysis of the Performances of Unit Refrigeration Systems Based on Parallel Compressors with Consideration of the Volumetric and Isentropic Efficiency

作者：Shen, Daoming[1,2];Gui, Chao[1];Xia, Jinhong[1];Xue, Songtao[2,3]

第一作者：Shen, Daoming;申道明

通讯作者：Shen, DM[1];Shen, DM[2]

机构：[1]Xinxiang Univ, Coll Civil Engn & Architecture, Xinxiang 453000, Henan, Peoples R China;[2]Tongji Univ, Res Inst Struct Engn & Disaster Reduct, Shanghai 20092, Peoples R China;[3]Tohoku Inst Technol, Dept Architecture, Sendai, Miyagi 9828577, Japan

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Civil Engn & Architecture, Xinxiang 453000, Henan, Peoples R China;[2]corresponding author), Tongji Univ, Res Inst Struct Engn & Disaster Reduct, Shanghai 20092, Peoples R China.|[1107114]新乡学院土木工程与建筑学院;[11071]新乡学院;

年份：2020

卷号：16

期号：3

起止页码：489-500

外文期刊名：FDMP-FLUID DYNAMICS & MATERIALS PROCESSING

收录：EI(收录号：20204209353269);Scopus(收录号：2-s2.0-85092510344);WOS:【ESCI(收录号:WOS:000560053900006)】；

基金：This work is supported by the National Natural Science Foundation of China (No. 41877251) and the Key project of Natural Science Foundation of Tianjin City (No. 6JCZDJC39000).

语种：英文

外文关键词：Parallel compressor unit; evaporation temperature; condensation temperature; pressure ratio; refrigeration capacity; energy efficiency ratio (COP)

摘要：The performances of a refrigeration unit relying on compressors working in parallel have been investigated considering the influence of the compressor volumetric efficiency and isentropic efficiency on the compression ratio. Moreover, the following influential factors have been taken into account: evaporation temperature, condensation temperature and compressor suction-exhaust pressure ratio for different opening conditions of the compressor. The following quantities have been selected as the unit performance measurement indicators: refrigeration capacity, energy efficiency ratio (COP), compressor power consumption, and refrigerant flow rate. The experimental results indicate that the system refrigeration capacity and COP decrease with a decrease in evaporation temperature, increase of condensation temperature, and increase in pressure ratio. The refrigerant flow rate increases with the increase in evaporation temperature, decrease in condensing temperature and increase in pressure ratio. The compressor power consumption increases with the increase in condensing temperature and increase in pressure ratio, but is not significantly affected by the evaporation temperature.