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Performance of heat pumps charged with R170/R290 mixture

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  • Park, Ki-Jung
  • Jung, Dongsoo

Abstract

In this study, thermodynamic performance of R170/R290 mixture is measured on a heat pump bench tester in an attempt to substitute R22. The bench tester is equipped with a commercial hermetic rotary compressor providing a nominal capacity of 3.5 kW. All tests are conducted under the summer cooling and winter heating conditions of 7/45 °C and -7/41 °C in the evaporator and condenser, respectively. During the tests, the composition in R170/R290 mixture is varied from 0% to 10% with an interval of 2%. Test results show that the coefficient of performance (COP) and capacity of R290 are up to 15.4% higher and 7.5% lower, respectively than those of R22 for two conditions. For R170/R290 mixture, the COP decreases and the capacity increases with an increase in the composition of R170. The mixture of R170/R290 mixture at 4%/96% composition shows the similar capacity and COP as those of R22. For the mixture, the compressor discharge temperature is 17-28 °C lower than that of R22. For R170/R290 mixture, there is no problem with mineral oil since the mixture is composed of hydrocarbons. The amount of charge is reduced up to 58% as compared to R22. Overall, R170/R290 mixture is a good long term [`]drop-in' candidate from the view point of energy efficiency and greenhouse warming to replace R22 in residential air-conditioners and heat pumps.

Suggested Citation

  • Park, Ki-Jung & Jung, Dongsoo, 2009. "Performance of heat pumps charged with R170/R290 mixture," Applied Energy, Elsevier, vol. 86(12), pages 2598-2603, December.
    • Handle: RePEc:eee:appene:v:86:y:2009:i:12:p:2598-2603
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    Citations

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    Cited by:

    1. Zhang, Shengjun & Wang, Huaixin & Guo, Tao, 2010. "Experimental investigation of moderately high temperature water source heat pump with non-azeotropic refrigerant mixtures," Applied Energy, Elsevier, vol. 87(5), pages 1554-1561, May.
    2. Chae, Kyu-Jung & Ren, Xianghao, 2016. "Flexible and stable heat energy recovery from municipal wastewater treatment plants using a fixed-inverter hybrid heat pump system," Applied Energy, Elsevier, vol. 179(C), pages 565-574.
    3. Guo, Hao & Gong, Maoqiong & Qin, Xiaoyu, 2019. "Performance analysis of a modified subcritical zeotropic mixture recuperative high-temperature heat pump," Applied Energy, Elsevier, vol. 237(C), pages 338-352.
    4. Chua, K.J. & Chou, S.K. & Yang, W.M., 2010. "Advances in heat pump systems: A review," Applied Energy, Elsevier, vol. 87(12), pages 3611-3624, December.
    5. Harby, K., 2017. "Hydrocarbons and their mixtures as alternatives to environmental unfriendly halogenated refrigerants: An updated overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 73(C), pages 1247-1264.
    6. Daghigh, Ronak & Ruslan, Mohd Hafidz & Sulaiman, Mohamad Yusof & Sopian, Kamaruzzaman, 2010. "Review of solar assisted heat pump drying systems for agricultural and marine products," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2564-2579, December.
    7. Hao, Xinyue & Wang, Lin & Wang, Zhanwei & Tan, Yingying & Yan, Xiaona, 2018. "Hybrid auto-cascade refrigeration system coupled with a heat-driven ejector cooling cycle," Energy, Elsevier, vol. 161(C), pages 988-998.
    8. Wu, Di & Hu, Bin & Wang, R.Z., 2021. "Vapor compression heat pumps with pure Low-GWP refrigerants," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).
    9. Zhang, Jing & Zhang, Hong-Hu & He, Ya-Ling & Tao, Wen-Quan, 2016. "A comprehensive review on advances and applications of industrial heat pumps based on the practices in China," Applied Energy, Elsevier, vol. 178(C), pages 800-825.
    10. Yu, Binbin & Yang, Jingye & Wang, Dandong & Shi, Junye & Guo, Zhikai & Chen, Jiangping, 2019. "Experimental energetic analysis of CO2/R41 blends in automobile air-conditioning and heat pump systems," Applied Energy, Elsevier, vol. 239(C), pages 1142-1153.
    11. Wang, Q. & Li, D.H. & Wang, J.P. & Sun, T.F. & Han, X.H. & Chen, G.M., 2013. "Numerical investigations on the performance of a single-stage auto-cascade refrigerator operating with two vapor–liquid separators and environmentally benign binary refrigerants," Applied Energy, Elsevier, vol. 112(C), pages 949-955.
    12. Zhou, Guobing & Zhang, Yufeng, 2010. "Performance of a split-type air conditioner matched with coiled adiabatic capillary tubes using HCFC22 and HC290," Applied Energy, Elsevier, vol. 87(5), pages 1522-1528, May.
    13. Vannoni, Alberto & Sorce, Alessandro & Traverso, Alberto & Fausto Massardo, Aristide, 2023. "Large size heat pumps advanced cost functions introducing the impact of design COP on capital costs," Energy, Elsevier, vol. 284(C).

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