The influence of internal heat exchanger on energy efficiency and environmental effects of the Heat Pump using Low-GWP Refrigerants as substitutes

This paper presents an experimental analysis of the influence of heat exchanger on the performance of a heat pump system using Low-GWP refrigerants as replacements for R22. In this work, we compare the energy performance of a monitored heat pump system using NC01(composed of R32, R1234ze(E), and R13...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2018-10, Vol.186 (3), p.12084
Main Authors: Yuqing, Zhao, Yun, Dai, Gaoyan, Lanyi, Xie, Xiangyang, Hou, Jianling, Gao
Format: Article
Language:English
Subjects:
Energy efficiency
Environmental effects
Heat
Heat exchangers
Heat pumps
Heat recovery systems
Refrigerants
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Summary:This paper presents an experimental analysis of the influence of heat exchanger on the performance of a heat pump system using Low-GWP refrigerants as replacements for R22. In this work, we compare the energy performance of a monitored heat pump system using NC01(composed of R32, R1234ze(E), and R134a at a mass percentage of 50%:17%:33%), R32 and R1234ze(E) with and without the presence of an internal heat exchanger. From the experimental results, COP reductions of R1234ze(E), NC01 and R32 was 12%, 4% and 1.9% respectively, although the presence of an IHX can help to lessen these reductions between 2 and 6%. The results indicated lower TEWI amounts as a result of using NC01 as an alternative to R22 with the presence of IHT (internal heat exchanger).
ISSN:1755-1307
1755-1315
1755-1315
DOI:10.1088/1755-1315/186/3/012084