Performance Analysis of Alternative Low GWP Refrigerant Mixtures as a Direct Substitute of HFC-134a in a Domestic Refrigerator using LSHX
Mohammad Hasheer SK1, Kolla Srinivas2

1Mohammad Hasheer SK, Assistant professor, Department of Mechanical Engineering, RVR&JC College of Engineering (A), Guntur, India.
2Kolla Srinivas, Professor, Department of Mechanical Engineering, RVR&JC College of Engineering (A), Guntur, India.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 1027-1031 | Volume-8 Issue-8, June 2019 | Retrieval Number: H6556068819/19©BEIESP
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Abstract: The main objective of this article is to investigate R290, R600a and three mixtures R1, R2 and R3 composed of R290 and R600a (in the ratio of 40:60, 60:40, and 50:50 by mass, respectively) as direct substitute to HFC-R134a in a domestic refrigerator were analyzed theoretically. At the same time performance improvement of domestic refrigerator was observed with the help of a liquid-suction heat exchanger (LSHX). The performance of the refrigerator was compared in terms of blower discharge temperature, coefficient of performance, refrigeration capacity, and energy consumption of a blower. The results are revealed that R2 had a better results in terms of COP as well as nearly equal cooling capacity as compared to HFC-134a. Compressor outlet temperature of R2 was lower than that of HFC-134a by about 1.33 to 0.70C.At the same time there is an improvement in the performance of a domestic refrigerator using LSHX. It was concluded that R2 can be used as a direct substitute to HFC-134a in refrigerator without doing any modifications.
Keyword: Domestic Refrigerator, GWP, R600a, R290, HFC-134a.
Scope of the Article: High Performance Computing.