R410A、R32、R290、R134a和R404A在两级压缩制冷循环下的特性对比
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摘要
基于带闪蒸器的两级节流中间不完全冷却蒸气压缩式制冷循环数学模型,对制冷工质R410A、R32、R290、R134a和R404A在两种典型空调工况下的制冷量、性能系数、高低压级容积比、相对单级制冷循环的制冷量提升幅度、相对单级制冷循环的性能系数提升幅度进行对比分析,分析了上述5种制冷剂的各参数在两种典型空调工况下的变化规律,为双级压缩机的设计开发提供指导。
Base on the mathematical model of two throttle intermediate with flash device incomplete cooling vapor compression refrigeration cycle, this paper calculated the refrigeration capacity, Coefficient of Performance, volume ratio, relative cooling capacity of single-stage refrigeration cycle increases, the relative coefficient of single-stage refrigeration cycle of refrigerants including R410 A, R32, R290, R134 a and R404 A in two kinds of typical air-conditioning condition. It is found that refrigerating capacity,Coefficient of Performance and the optimal displacement ratio of two-stage compression incomplete cooling cycle is different for the five different refrigerants. This result is useful for designing two-stage computer with vapor injection using different refrigerants under varies situations.
Base on the mathematical model of two throttle intermediate with flash device incomplete cooling vapor compression refrigeration cycle, this paper calculated the refrigeration capacity, Coefficient of Performance, volume ratio, relative cooling capacity of single-stage refrigeration cycle increases, the relative coefficient of single-stage refrigeration cycle of refrigerants including R410 A, R32, R290, R134 a and R404 A in two kinds of typical air-conditioning condition. It is found that refrigerating capacity,Coefficient of Performance and the optimal displacement ratio of two-stage compression incomplete cooling cycle is different for the five different refrigerants. This result is useful for designing two-stage computer with vapor injection using different refrigerants under varies situations.
引文
[1]张太康,翁文兵,喻晶. R134a、R417a和R22用于空气能热泵热水器的性能研究[J].流体机械, 2010, 29(5):72-76.
[2]庄嵘,梁翔飞.R290和R32单级干湿压缩循环及回热循环特性分析[J].制冷与空调, 2013, 13(5):19-21.
[3]黄玉优,尹茜,于静,王俊. R290空气源热泵热水器的试验研究与对比[J].制冷与空调, 2011, 11(3):57-60.
[4]楚银盾,金听祥,张卫士.R290在房间空调器中研究现状[J].制冷技术, 2013, 33(4):70-76.
[5]赵志刚,周彬彬,张超甫,李红旗,蔡立佳.R404A制冷剂在商用制冷设备中的应用分析[J].制冷, 2006, 25(4):76-80.
[6]彦启森,石文星,田长青.空气调节用制冷技术(第三版)[M].北京:中国建筑工业出版社, 2004.
[7]郑贤德.制冷原理与装置:第2版[M].北京:机械工业出版社, 2008:79-81.
[2]庄嵘,梁翔飞.R290和R32单级干湿压缩循环及回热循环特性分析[J].制冷与空调, 2013, 13(5):19-21.
[3]黄玉优,尹茜,于静,王俊. R290空气源热泵热水器的试验研究与对比[J].制冷与空调, 2011, 11(3):57-60.
[4]楚银盾,金听祥,张卫士.R290在房间空调器中研究现状[J].制冷技术, 2013, 33(4):70-76.
[5]赵志刚,周彬彬,张超甫,李红旗,蔡立佳.R404A制冷剂在商用制冷设备中的应用分析[J].制冷, 2006, 25(4):76-80.
[6]彦启森,石文星,田长青.空气调节用制冷技术(第三版)[M].北京:中国建筑工业出版社, 2004.
[7]郑贤德.制冷原理与装置:第2版[M].北京:机械工业出版社, 2008:79-81.