EXPERIMENTAL EVALUATION OF THE SEASONAL ENERGY EFFICIENCY RATING FOR A TRANS-CRITICAL R744 BOOSTER SYSTEM IN VARIOUS CLIMATE CONDITIONS

摘要：

　　CO2 booster systems represent the most common system type for trans-critical CO2 applications in commercial refrigeration.Booster systems are characterized by a common refrigerant and lubrication circuit,where the compressor of the low-temperature stage discharges directly into the suction-side of the medium-temperature(MT)stage compressor.Despite of the fact that booster systems typically operate with higher suction gas temperatures and consequently,lower suction gas densities in the MT stage compared to cascade systems,these systems usually still have higher energy efficiencies.The main reason is the temperature difference required in the cascade heat exchanger,resulting in an increased pressure ratio and finally power consumption by the compressors in the low-temperature stage.

作者: Oliver JAVERSCHEK Manuel REICHLE

作者单位: BITZER Kuehlmaschinenbau GmbH,Eschenbrünnlestr.15,71083 Sindelfingen,Germany

会议类型: 国内会议

会议名称: 2016国际制冷空调技术交流会

会议地点: 珠海

会议语种:英文

页码: 1-7

在线出版日期: 2016-11-01（万方平台首次上网日期，不代表论文的发表时间）