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Research on dehumidification and heating performance of dual‑evaporator heat pump system for electric vehicle
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Mingfei TAN1, 2, Jiayun HU1, 2, Yanming MIAO1, 2, Xiaoyang GU1, 2, Chao LI3, Qize HE4, Tianjiao ZHANG1, 2, Kang LI1, 2
Fluid Machinery | 2025, 53(3) : 9 - 16
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Fluid Machinery | 2025, 53(3): 9-16
Research on dehumidification and heating performance of dual‑evaporator heat pump system for electric vehicle
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Mingfei TAN1, 2, Jiayun HU1, 2, Yanming MIAO1, 2, Xiaoyang GU1, 2, Chao LI3, Qize HE4, Tianjiao ZHANG1, 2, Kang LI1, 2
Affiliations
  • 1Integrated New Energy Vehicle Thermal Management Evaluation Laboratory，University of Shanghai for Science and Technology，Shanghai  200093，China
  • 2School of Energy and Power Engineering，University of Shanghai for Science and Technology，Shanghai  200093，China
  • 3Shanghai Investigation Design & Research Institute Co.，Ltd.，Shanghai  200093，China
  • 4Shanghai Fire Research Institute Ministry of Emergency Management，Shanghai  200032，China
Published: 2025-03-30 doi: 10.3969/j.issn.1005-0329.2025.03.002
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This study investigates the dehumidification and heating performance of a dual‑evaporator heat pump system for electric vehicles，which operates in two modes：Single‑evaporator mode （SEM） and dual-evaporator mode （DEM）.Experimental evaluations were conducted under varying operating conditions to compare system characteristics.Results demonstrate that at 60%~90% inlet air humidity and 4 000 r/min compressor speed，SEM achieves 26.2%~62.8% higher dehumidification rates and 25.7%~43.9% greater DSMER than DEM. Conversely，DEM exhibits 26.6%~67.6% superior effective heating capacity and 11.2%~50.0% higher COP compared to SEM.When maintaining equivalent dehumidification performance，DEM delivers 43% higher outlet air temperature and 28% improved COP over SEM. These findings provide critical insights for expanding application scenarios of electric vehicle heat pump systems and advancing their technological development.

electric vehicle  /  heat pump system  /  dehumidification and heating  /  dual‑evaporator  /  coefficient of performance
谭明飞, 胡家云, 苗言明, 谷晓阳, 李超, 何其泽, 张天娇, 李康. 电动汽车双蒸发器热泵系统除湿制热性能研究. 流体机械, 2025 , 53 (3) : 9 -16 . DOI: 10.3969/j.issn.1005-0329.2025.03.002
Mingfei TAN, Jiayun HU, Yanming MIAO, Xiaoyang GU, Chao LI, Qize HE, Tianjiao ZHANG, Kang LI. Research on dehumidification and heating performance of dual‑evaporator heat pump system for electric vehicle[J]. Fluid Machinery, 2025 , 53 (3) : 9 -16 . DOI: 10.3969/j.issn.1005-0329.2025.03.002
Appendix
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Year 2025 volume 53 Issue 3
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Article Info
doi: 10.3969/j.issn.1005-0329.2025.03.002
  • Receive Date：2024-07-29
  • Online Date：2026-10-20
  • Published：2025-03-30
Article Data
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History
  • Received：2024-07-29
  • Revised：2025-01-15
Affiliations
    1Integrated New Energy Vehicle Thermal Management Evaluation Laboratory，University of Shanghai for Science and Technology，Shanghai  200093，China
    2School of Energy and Power Engineering，University of Shanghai for Science and Technology，Shanghai  200093，China
    3Shanghai Investigation Design & Research Institute Co.，Ltd.，Shanghai  200093，China
    4Shanghai Fire Research Institute Ministry of Emergency Management，Shanghai  200032，China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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