燃气机热泵系统的循环工质优选  

Optimizing Option of Refrigerant in Gas Engine Heat Pump

作　　者：刘圣春[1] 马一太[1] 谢英柏[2] 苏维诚[1] 

机构地区：[1]天津大学机械工程学院,天津300072 [2]华北电力大学动力工程系,保定071003

出　　处：《天津大学学报（自然科学与工程技术版）》2005年第3期258-261,共4页Journal of Tianjin University：Science and Technology

基　　金：天津市自然科学基金重点资助项目(993803211);天津大学"211工程"重点学科建设资助项目(TD211 95 0106).

摘　　要：燃气机热泵系统工质的选择是影响机组性能的关键,为此,选择了6组低环害或无环害的循环工质,从制冷剂的安全性和与系统润滑油的兼容性方面作了分析,同时以CSD方程计算了各组工质的循环参数,从热力学第一定律和一次能源利用率方面进行了分析.结果表明,R290和R600a组成的混合工质的使用危险可以控制,同时与系统的润滑油兼容,具有很高的系统效率和一次能源利用率,可以替代R134a使用.The option of refrigerant in gas engine heat pump is important for the cycle performance.Six groups of non-environmental impact or low-environmental impact refrigerants were selected.The security and compatibility with lubricant about the selected refrigerants were analyzed, and the cycle performance parameters were calculated by the equation of carnahan-starling-desantis(CSD).Based on the criterion of the first law of thermodynamics and primary energy ratio(PER),the values of coefficient of performance(COP)and PER were calculated. The results show that the fatalness of blend of R290/R600a can be controlled and the blend is compatible with lubricant in system. The blend has high COP and PER and may be a drop-in substituting for R134a.

关 键 词：燃气机热泵 制冷剂 安全性 热力学分析 循环参数 

分 类 号：TK019[动力工程及工程热物理]