CO_2双级压缩制冷热泵循环性能研究  

Performance Analysis of CO_2 Two-stage Compression Refrigeration Heat Pump Cycle

作　　者：刘雄[1] 姜乔乔[1] 郭浩波 

机构地区：[1]西安建筑科技大学,陕西西安710055 [2]新时代(西安)设计研究院有限公司,陕西西安710055

出　　处：《流体机械》2011年第8期69-73,共5页Fluid Machinery

基　　金：陕西省教育厅专项基金项目(2010JK646)

摘　　要：提出了一种CO2双级压缩制冷热泵循环,它能够实现冷热量的同时独立调节;并通过实际案例,理论分析了不同制冷剂质量流量系数、不同环境温度、热水温度以及高压压缩机排气压力下,新循环的性能,考察了特征温度和最佳排气压力的影响因素。This paper proposed a two-stage compression refrigeration heat pump cycle. It can not only recycle waste heat generated by refrigeration, but also supply cooling and domestic hot water at the same time according to the user＇s need. Using actual cases, they are analyzed theoretically that the refrigerant mass flow rate, environment temperature, hot water temperature, high pressure compressor＇s exhaust pressure have influence on the new cycle＇s properties. In addition, the effect factors of the characteristic temperature and high pressure compressor＇s optimum exhaust pressure are discussed.

关 键 词：二氧化碳 双级压缩 热泵 性能 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]