R1234ze与R152a混合制冷剂替代R22的可行性  

Feasibility of using R1234ze and R152a mixture as alternative for R22

作　　者：霍二光 戴源德[1] 耿平[1] 曹孟冰 

机构地区：[1]南昌大学机电工程学院,江西南昌330031

出　　处：《化工学报》2015年第12期4725-4729,共5页CIESC Journal

基　　金：国家自然科学基金项目(51066005)~~

摘　　要：目前空调用制冷剂,R22的主要替代物是R410A与R407C,它们的ODP值虽然为0,但是GWP值还较高,仍然会对环境造成不利的影响。将R1234ze和R152a以40:60组成一种新型混合制冷剂(用代号NCUR01表示),并对其进行理论分析,通过分析NCUR01的环境影响指数、温度滑移特性、理论热力循环性能、热力学性质、安全性以及润滑油等因素,并与R22及其主要替代制冷剂R410A、R407C进行对比,结果显示:该混合制冷剂对环境的影响非常小,具有与R22相似的饱和压力线,而且具有较低的排气温度与较高的COP值,NCUR01的COP值比R22高约5%、比R410A高约19.6%、比R407C高约9.7%,排气温度比R22与R410A低约18℃、比R407C低约6℃,是一种性能良好的近共沸混合制冷剂,替代R22具有可行性。Among current air conditioning refrigerants, R410 A and R407 C are the main alternative refrigerants of R22. TheirODP is zero, but their GWP is relatively high, with a negative impact on the environment. For the selected mixed refrigerant composed of mass fraction of 40% of R1234 ze and 60% R152a（represented by NCUR01）, its theoretical analyses according to REFOROP9.0, analyzing its environmental impact index, its temperature glide characteristics, theoretical thermodynamic cycle performance, thermodynamic properties, safety and lubricants, and other factors are carried out and compared with R22, its major alternative refrigerants R410 A and R407 C. The results show that the mixed refrigerant has very small impact on the environment, presents similar saturation pressure line to that of R22, and has a lower discharge temperature and a higher COP. The discharge temperature of NCUR01 is 18℃ lower than that of R22 and R410 A, 6℃ lower than that of R407 C. COP of NCUR01 is about 5% higher than that of R22, 19.6% higher than R410 A, and 9.7% higher than R407 C. Thus it is an excellent near-azeotropic refrigerant, a feasible alternative of R22.

关 键 词：共沸混合制冷剂 环境影响 温度滑移 热力学性质 安全性 优化 数值分析 

分 类 号：TB612[一般工业技术—制冷工程]