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ISSN (Print): 2212-7976
ISSN (Online): 1874-477X

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Research Article

Performance Analysis of Low GWP Refrigerants R1234yf and R448A in a Small High and Low-temperature Test Equipment

Author(s): Zhou Liqiang, Hua Zhang, Wang Zilong* and Gao Wenjing

Volume 15, Issue 3, 2022

Published on: 22 April, 2022

Page: [277 - 284] Pages: 8

DOI: 10.2174/2212797615666220401092744

Price: $65

Abstract

Aim: The article presents an analysis of the feasibility of R1234yf and R448A, two new low GWP refrigerants, as alternatives to R404A in the refrigeration system of small high and lowtemperature test equipment.

Methods: The physical properties of R448A and R404A are similar. Compared with R404A, the GWP of R1234yf and R448A reduced by 99.9% and 67.7%, respectively. The analysis is based on an experimental comparison of R404A with R448A and R1234yf, comparing the compressor discharge temperature, COP, cooling capacity, and the cooling rate of three refrigeration systems at different ambient temperatures.

Results: The experimental results show that the cooling capacity of R448A is better than R404A at a higher condensing temperature.

Conclusion: When the charging volume is 230g, and the ambient temperature is 25°C, the COP of the R448A system is increased by about 24.63% compared with the R404A system.

Keywords: High and low temperature test equipment, humidity , refrigerant, COP, filling capacity, regenerator.

« Previous Next »
[1]
Cai L, Long D, Song X, et al. Review of temperature tests and relevant standards (part one)influence of temperature on equipment and importance of temperature tests. Environ Technol 2014; 4: 93-6.
[2]
Mao H. Automatic control system of high and low tempera-ture damp heat laboratory. Technol Elec Motor Appli 2002; 5: 24-6.
[3]
Han X, Zhang X. Experimental study on a residential tem-perature-humidity separate control air-conditioner. Energy Build 2011; 43(12): 3584-91.
[4]
Jing G. Performance prediction of alternative refrigerant in the air conditioning system. Tianjin University 2015.
[5]
Beshr M, Aute V, Sharma V, et al. A comparative study on the environmental impact of supermarket refrigeration sys-tems using low GWP refrigerants. Int J Refrig 2015; 56: 154-64.
[http://dx.doi.org/10.1016/j.ijrefrig.2015.03.025]
[6]
Liu Y, Li W, Shi J, et al. Review and potential analysis of R1234yf heat pump technology. Int J Refrigert 2020; 41(1): 10-9.
[7]
Mota-Babiloni A, Navarro-Esbrí J, Barragán Á, et al. Theoret-ical comparison of low GWP alternatives for different refrig-eration configurations taking R404A as baseline. Int J Refrig 2014; 44: 81-90.
[http://dx.doi.org/10.1016/j.ijrefrig.2014.04.015]
[8]
Jacob TA, Matty EP, Fronk BM. Comparison of R404A con-densation heat transfer and pressure drop with low global warming potential replacement candidates R448A and R452A. Int J Refrig 2020; 116: 9-22.
[http://dx.doi.org/10.1016/j.ijrefrig.2020.03.014]
[9]
liqian R, Zhigang H, Haiyun M. Analysis on characteristics of low gwp refrigerants of r448a and r449a in scroll compressor. Chinese J Refriger Technol 2019; (3): 42-6.
[10]
Li J, Hao Z, Li T, et al. Study on the high temperature cooling characteristics of room air conditioner using alternative refrig-erants. China Appliance Technology 2020.
[11]
Mota-Babiloni A, Navarro-Esbrí J, Peris B, et al. Experimental evaluation of R448A as R404A lower-GWP alternative in re-frigeration systems. Energy Convers Manage 2015; 105: 756-62.
[http://dx.doi.org/10.1016/j.enconman.2015.08.034]
[12]
Makhnatch P, Mota-Babiloni A, et al. Retrofit of lower GWP alternative R449A into an existing R404A indirect supermar-ket refrigeration system. Int J Refrig 2017; 76: 184-92.
[http://dx.doi.org/10.1016/j.ijrefrig.2017.02.009]
[13]
Xu C, Guo Z, Shi W, et al. Substitution research summary of HFO refrigerants in refrigeration and air-conditioning field. Refriger Aircondition 2019; 19(8): 1-13.
[14]
Devecioğlu GA, Vedat O. Experimental comparison of R404A and R452A in refrigeration systems. Sci Technol Built Environ 2020; 27: 61-9.
[15]
Sethi A, Pottker G, Motta SY. Experimental evaluation and field trial of low global warming potential R404A replace-ments for commercial refrigeration. Sci Technol Built Environ 2016; 22: 1175-84.
[http://dx.doi.org/10.1080/23744731.2016.1209032]

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