Efficiency of vapor compression heat pumps based on non-azeotropic refrigerant mixtures

被引：1
|
作者：
Mezentseva N.N. [1 ]
机构：
[1] Kutateladze Institute of Thermophysics SB RAS, Novosibirsk
来源：
Thermophysics and Aeromechanics | 2011年 / 18卷 / 2期
关键词：
energy conversion ratio; heat pump; non-azeotropic refrigerants;
D O I：
10.1134/S0869864311020120
中图分类号：
学科分类号：
摘要：
The work presents the results of cycle computation for vapor compression pumps based on ozone-safe mixed refrigerants. Non-azeotropic binary refrugerants R32/R152a (30/70) and R32/R134a (30/70) were considere as working substances. Properties of non-azeotropic refrigerants were calculated according to the additivity method of thermodynamic functions and method of Lemmon and Jacobsen. Deviations in the values of thermophysical properties obtained with two methods have been determined. It is shown that at the use of nonazeotropic mixture R32/R152a (30/70), energy conversion ratio increases by 2.2-3.6 % compared with the results for R32/R134a (30/70) at temperature difference between the processes of boiling and condensation from 28 to 53 °C. © 2011 Pleiades Publishing, Ltd.
引用
收藏
页码：323 / 330
页数：7
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