Experimental Research on the Heating Performance of Electric Vehicle Compressors with R290 under Low-Temperature Conditions

Wang Chuanyu; Huang Lihao; Tao Leren; Li Xingjiang; Chen Jianhong

doi:10.12465/issn.0253-4339.20250923001

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Experimental Research on the Heating Performance of Electric Vehicle Compressors with R290 under Low-Temperature Conditions

更新时间：2026-04-24

- Experimental Research on the Heating Performance of Electric Vehicle Compressors with R290 under Low-Temperature Conditions
- Journal of Refrigeration Pages: 1-8(2026)
- 作者机构：
  
  1.上海理工大学能源与动力工程学院上海 200093
  2. 上海市动力工程多相流动与传热重点实验室上海 200093
  3. 浙江中广电气集团股份有限公司丽水 323010
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52006147)
- DOI：10.12465/issn.0253-4339.20250923001
  CLC： TB652;U469.72;U463.85+1
- Received：23 September 2025，
  
  Revised：2025-11-06，
  
  Accepted：15 December 2025，
  
  Online First：24 April 2026，
- 稿件说明：
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王传玉,黄理浩,陶乐仁等.低温环境下R290电动汽车压缩机制热性能实验研究[J].制冷学报,

Wang Chuanyu,Huang Lihao,Tao Leren,et al.Experimental Research on the Heating Performance of Electric Vehicle Compressors with R290 under Low-Temperature Conditions[J].Journal of Refrigeration,
王传玉,黄理浩,陶乐仁等.低温环境下R290电动汽车压缩机制热性能实验研究[J].制冷学报, DOI：10.12465/issn.0253-4339.20250923001.

Wang Chuanyu,Huang Lihao,Tao Leren,et al.Experimental Research on the Heating Performance of Electric Vehicle Compressors with R290 under Low-Temperature Conditions[J].Journal of Refrigeration, DOI：10.12465/issn.0253-4339.20250923001.

摘要

为研究R290制冷剂在低温环境下电动汽车压缩机的制热性能特性，本文搭建了一套电动汽车空调压缩机性能测试系统，系统研究了R290压缩机在低温工况下的功率、制热量、等熵/容积效率、COP、油循环率与排气温度的变化规律。结果表明：功率和制热量随转速线性上升，蒸发温度每降5 ℃，制热量下降13.6%~15.3%；等熵效率随转速下降6.2%~9.3%，相比冷凝温度，受蒸发温度的影响更显著；容积效率先升后降，蒸发温度每降10 ℃容积效率下降3.5%~4.9%，冷凝温度每升10 ℃容积效率仅降0.4%~1.2%；COP随转速下降，蒸发温度每降5 ℃与冷凝温度每升10 ℃，COP分别降低约0.15~0.40和0.25~0.45；油循环率随转速单调上升，受蒸发温度影响显著，受冷凝温度影响较小；排气温度随转速增大而上升，但转速变化带来的温升远小于温度工况变化。研究表明，R290压缩机在低温工况下能保持较好的制热性能，同时也验证了R290作为环保制冷剂在电动汽车空调系统中应用的可行性。

Abstract

To investigate the heating performance characteristics of R290 refrigerants in electric vehicle compressors under low-temperature conditions， a comprehensive performance testing system for electric vehicle air-conditioning compressors was established. The variation patterns of power consumption， heating capacity， isentropic/volumetric efficiency， COP， oil circulation rate， and discharge temperature of R290 compressors under low-temperature operating conditions were investigated. The results demonstrate that power consumption and heating capacity increase linearly with rotational speed， with heating capacity decreasing by 13.6%-15.3% for every 5 ℃ reduction in evaporation temperature； isentropic efficiency decreases by 6.2%-9.3% with increasing speed and is more significantly affected by evaporation temperature than by condensing temperature； volumetric efficiency initially increases and then decreases， dropping by 3.5%-4.9% for every 10 ℃ decrease in evaporation temperature and only 0.4%-1.2% for every 10 ℃ increase in condensing temperature； COP decreases with rotational speed， with reductions of approximately 0.15-0.40 and 0.25-0.45 every 5 ℃ decrease in evaporation temperature and every 10 ℃ increase in condensing temperature， respectively； oil circulation rate increases monotonically with speed， being significantly influenced by evaporation temperature while being less affected by condensing temperature； and discharge temperature rises with increasing speed， although the temperature rise induced by speed variation is considerably smaller than that caused by thermal operating condition changes. In this study， we demonstrate that R290 compressors maintain satisfactory heating performance under low-temperature conditions， while validating the feasibility of R290 as an environmentally friendly refrigerant for electric-vehicle air conditioning systems.

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references

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Related Author

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Related Institution

School of Environment and Architecture， University of Shanghai for Science and Technology

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Guangdong Meizhi Compressor Co., Ltd.

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