Experimental study of an R1234ze(E)/R134a mixture (R450A) as R134a replacement

被引：73

作者：

Mota-Babiloni, Adrian ^{[1
,2
]}

Navarro-Esbri, Joaquin ^{[2
]}

Barragan-Cervera, Angel ^{[2
]}

Moles, Francisco ^{[2
]}

Peris, Bernardo ^{[2
]}

机构：

[1] Univ Politecn Valencia, Inst Ind Radiophys & Environm Safety, E-46022 Valencia, Spain

[2] Univ Jaume 1, Dept Mech Engn & Construct, ISTENER Res Grp, E-12071 Castellon de La Plana, Spain

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2015年 / 51卷

关键词：

Refrigeration; R450A; R134a; Mixture; Energy efficiency; Drop-in; 2,3,3,3-TETRAFLUOROPROP-1-ENE R1234YF; FLAMMABILITY LIMITS; BINARY-MIXTURES; PERFORMANCE; REFRIGERANTS; EQUILIBRIUM; R-1234ZE(E);

D O I：

10.1016/j.ijrefrig.2014.12.010

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work presents an experimental analysis of a non-flammable R1234ze(E)/R134a mixture (R450A) as R134a drop-in replacement. While R134a has a high GWP value (1430), the R450A GWP is only 547. The experimental tests are carried out in a vapour compression plant equipped with a variable-speed compressor. The replacement suitability has been studied combining different operating conditions: evaporation temperature, condensation temperature and the use of an internal heat exchanger (IHX). The drop-in cooling capacity of R450A compared with R134a is 6% lower as average. R450A COP is even higher to those resulting with R134a (approximately 1%). The discharge temperature of R450A is lower than that of R134a, 2K as average. The IHX has a similar positive influence on the energy performance of both fluids. In conclusion, R450A can be considered as a good candidate to replace R134a. (C) 2014 Elsevier Ltd and IIR. All rights reserved.

引用

页码：52 / 58

页数：7

共 28 条

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