文献类型：期刊文献

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

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

第一作者：申道明;Daoming Shen

机构：[1]College of Civil Engineering and Architecture,Xinxiang University,Xinxiang,453000,China;[2]Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai,20092,China;[3]Department of Architecture,Tohoku Institute of Technology,Sendai,982-8577,Japan

第一机构：新乡学院土木工程与建筑学院

年份：2020

卷号：16

期号：3

起止页码：489-500

中文期刊名：流体力学与材料加工（英文）

外文期刊名：Fluid Dynamics & Materials Processing

收录：Scopus

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

语种：英文

中文关键词：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.