一类有潜力的制冷剂替代物的循环特性  

Characteristics of a potential refrigerant substitute

作　　者：沈希[1] 鲍雨梅[1] 黄跃进[1] 

机构地区：[1]浙江工业大学机电工程学院,浙江杭州310032

出　　处：《浙江工业大学学报》2004年第4期451-454,共4页Journal of Zhejiang University of Technology

基　　金：浙江省自然科学基金资助项目(501080)

摘　　要：给出了一些碳氢化合物的性质和饱和特性曲线。采用美国NIST的REFPROP软件分析了这些碳氢化合物在冷凝温度一定时的循环特性,包括压缩特性,即压缩比及等熵压缩后制冷剂蒸汽温度与蒸发温度之间的关系;循环的热力学特性,即循环卡诺效率与蒸发温度之间的关系;以及单位体积制冷量与蒸发温度之间的关系。讨论了碳氢化合物的可燃性。指出碳氢化合物是一类有潜力的性能优良而又无公害的制冷剂替代物,可以用于许多小型的制冷系统中。Properties and saturation diagram of different hydrocarbons alternatives are provided. And the characteristic in terms of thermodynamic cycles of the hydrocarbons at given condensing temperature are analyzed with REFPROP (NIST Refrigerant Properties Database), including compressing properties (compressing ratio and temperature of refrigerant steam after compressed vs. evaporating temperature), thermodynamics property (cycling Carnot efficiency vs. evaporating temperature), and refrigerating capacity vs. evaporating temperature. The combustibility of hydrocarbons is also discussed. The conclusion is that the hydrocarbon is a potential environmentally friendly refrigerant substitute with excellent properties, which can be used in small refrigerating equipment.

关 键 词：制冷剂 碳氢化合物 热力学 循环卡诺效率 等熵压缩 

分 类 号：TB64[一般工业技术—制冷工程]