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Experimental investigation of cycle characteristics of a R23 and R600a based Joule-Thomson refrigerator

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Abstract

This paper proposes a novel refrigerant pair, i.e., R23(trifluoromethane) and R600a(isobutane), for Joule-Thompson (JT) refrigerating systems for 200 K applications, and investigates its performance in a modified smaller domestic cooler. The influence of the refrigerant ratios and the condensing temperature on the JT performance is investigated, and optimized parameters are proposed for further prototypes. It is suggested that R23/R600a is a good refrigerant pair for the JT system, and a compositional ratio of 3:7 is suitable for the designed application. The dynamic response of the refrigerating system shows that the proposed refrigerant pair can reach stable operating conditions within 45 min and the variation of the condensing temperature has little influence on the evaporating temperature, partly due to the full condensation of the refrigerant pair before the throttle process.

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Acknowledgements

This work is supported by the Science and Technology Program of Henan Province, China (172102410026).

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Authors and Affiliations

  1. School of Computer and Information Engineering, Luoyang Institute of Science and Technology, Luoyang, 471023, China

    Xianghua Lu

  2. Vehicle & Transportation Engineering Institute, Henan University of Science and Technology, Luoyang, 471023, People’s Republic of China

    Shengjun Rui & Tao He

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  1. Xianghua Lu
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  2. Shengjun Rui
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  3. Tao He
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Correspondence to Shengjun Rui.

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Lu, X., Rui, S. & He, T. Experimental investigation of cycle characteristics of a R23 and R600a based Joule-Thomson refrigerator. Heat Mass Transfer 55, 1439–1446 (2019). https://doi.org/10.1007/s00231-018-2526-9

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  • DOI: https://doi.org/10.1007/s00231-018-2526-9

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