TY  - JOUR
AU  - Ouyang, Hongsheng
AU  - Zhang, Dongxin
AU  - Cen, Shuting
AU  - Yan, Hongfei
AU  - Yan, Lixia
AU  - Hu, Bin
AU  - Guo, Zhikai
AU  - Han, Xiaohong
PY  - 2025
TI  - Physical Properties and High-Temperature Heat Pump Application Characteristics of the New Environmentally Friendly Refrigerant HP-1
JO  - Journal of Refrigeration
SN  - 0253-4339
SP  - 16
EP  - 23
VL  - 46
IS  - 1
AB  - 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.
UR  - https://doi.org/10.12465/j.issn.0253-4339.2025.01.016
DO  - 10.12465/j.issn.0253-4339.2025.01.016