R1234ze与R152a混合制冷剂替代R22的可行性

doi:10.11949/j.issn.0438-1157.20151281

摘要/Abstract

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。

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

Abstract:

Among current air conditioning refrigerants, R410A and R407C are the main alternative refrigerants of R22. Their ODP 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 R1234ze 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 R410A and R407C. 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 R410A, 6℃ lower than that of R407C. COP of NCUR01 is about 5% higher than that of R22, 19.6% higher than R410A, and 9.7% higher than R407C. Thus it is an excellent near-azeotropic refrigerant, a feasible alternative of R22.

Key words: azeotropic refrigerant, environmental impact, temperature glide characteristics, thermodynamic properties, safety, optimization, numerical analysis

中图分类号:

TB61⁺2

霍二光, 戴源德, 耿平, 曹孟冰. R1234ze与R152a混合制冷剂替代R22的可行性[J]. 化工学报, 2015, 66(12): 4725-4729.

HUO Erguang, DAI Yuande, GENG Ping, CAO Mengbing. Feasibility of using R1234ze and R152a mixture as alternative for R22[J]. CIESC Journal, 2015, 66(12): 4725-4729.

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