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Publishing Language: Chinese | Open Access

Physical Properties and High-Temperature Heat Pump Application Characteristics of the New Environmentally Friendly Refrigerant HP-1

Hongsheng Ouyang1,2, Dongxin Zhang2, Shuting Cen2, Hongfei Yan2, Lixia Yan2, Bin Hu3, Zhikai Guo2, Xiaohong Han1( )
Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, 310027, China
State Key Laboratory of Fluorinated Greenhouse Gases Replacement and Control Treatment, Zhejiang Research Institute of Chemical Industry Co., Ltd. , Hangzhou, 310023, China
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China
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Abstract

HP-1 is an eco-friendly hydrofluoroolefin (HFO) refrigerant with favorable thermodynamic and environmental properties. The critical parameters and saturated vapor pressure of HP-1 are similar to those of R245fa, with HP-1 serving as a potential replacement for R245fa, which has a high global warming potential (GWP) in high-temperature heat pumps. The flammability, solubility, and material compatibility of HP-1 were mainly determined experimentally, with the results demonstrating that HP-1 has a flammability range of 9.75%-16.1%, exhibiting excellent solubility with MK220 lubricating oil at elevated temperatures, and good compatibility with materials used in high-temperature heat pump systems. When HP-1 is applied to high-temperature heat pump units, the condensing temperature of the unit can reach up to 125 ℃ when the evaporating temperature ranges between 50 ℃ and 70 ℃, with a heating capacity of 99.27-153.14 kW and a coefficient of performance (COP) of 2.25-4.85.

Keywords

high-temperature heat pumprefrigerant replacementHFO refrigerantphysical property
CLC number: TB61+2;TK123;TU83 Document code: A Article ID: 0253-4339(2025)01-0016-08

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Journal of Refrigeration
Volume 46 Issue 1,
February 2025
Pages 16-23
DOI: 10.12465/j.issn.0253-4339.2025.01.016

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Cite this article:
Ouyang H, Zhang D, Cen S, et al. Physical Properties and High-Temperature Heat Pump Application Characteristics of the New Environmentally Friendly Refrigerant HP-1. Journal of Refrigeration, 2025, 46(1): 16-23. https://doi.org/10.12465/j.issn.0253-4339.2025.01.016

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Received: 07 May 2024
Revised: 20 May 2024
Accepted: 23 May 2024
Published: 16 February 2025
© 2025 The Editorial Office of Journal of Refrigeration

This is an open access article under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/).