Performance of Dual-evaporation Temperature Heat-Pump Air-Conditioning System for Electric Vehicles

Yu Tianchan; Liu Shurong; Shi Wenxing; Li Xianting

doi:10.12465/issn.0253-4339.20260809001

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Performance of Dual-evaporation Temperature Heat-Pump Air-Conditioning System for Electric Vehicles

更新时间：2026-09-30

- Performance of Dual-evaporation Temperature Heat-Pump Air-Conditioning System for Electric Vehicles
- Journal of Refrigeration Pages: 1-10(2026)
- 作者机构：
  
  1.清华大学建筑技术科学系北京 100084
  2. 中国汽车工程研究院股份有限公司重庆 401122
- 作者简介：
  
  Shi Wenxing， male， professor， Ph. D. supervisor， Department of Building Science， Tsinghua University， 86-10-62796114，E-mail： wxshi@tsinghua.edu.cn. Research fields： refrigeration and heat pump； energy storage and utilization of renewable energy.
- 基金信息：
- DOI：10.12465/issn.0253-4339.20260809001
  CLC： TB657.2;U469.72
- Received：09 August 2026，
  
  Revised：2026-09-07，
  
  Accepted：09 September 2026，
  
  Online First：30 September 2026，
- 稿件说明：
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于天蝉,刘树荣,石文星等.电动汽车双蒸发温度热泵空调系统性能研究[J].制冷学报,

Yu Tianchan,Liu Shurong,Shi Wenxing,et al.Performance of Dual-evaporation Temperature Heat-Pump Air-Conditioning System for Electric Vehicles[J].Journal of Refrigeration,
于天蝉,刘树荣,石文星等.电动汽车双蒸发温度热泵空调系统性能研究[J].制冷学报, DOI：10.12465/issn.0253-4339.20260809001.

Yu Tianchan,Liu Shurong,Shi Wenxing,et al.Performance of Dual-evaporation Temperature Heat-Pump Air-Conditioning System for Electric Vehicles[J].Journal of Refrigeration, DOI：10.12465/issn.0253-4339.20260809001.

摘要

电动汽车产业的高质量发展对于推动我国能源革命进程、实现“双碳”目标具有重要意义。电动汽车的气候适应性是当前制约其全面推广应用的技术因素之一，针对电动汽车在低温与高温环境中空调能耗高，导致其续航里程显著衰减的问题，本文提出了电动汽车双蒸发温度热泵空调系统，搭建了原理样机与仿真模型，采用实验与仿真相结合的方法研究了该系统的变工况运行特性及其相较于传统电动汽车热泵空调系统的制热/制冷节能效果。研究结果表明：随着双缸压缩机气缸容积比的增大，双蒸发温度热泵空调系统的制热/制冷能效呈现先升高后降低的趋势；在气缸容积比为1.25的设计条件下，双蒸发温度热泵空调系统在-20~0 ℃低温工况与30~42 ℃高温工况下的制热/制热能耗分别降低了8.2%~30.2%、16.3%~48.3%。

Abstract

The high-quality development of the electric-vehicle industry is critical to promoting China's energy revolution and achieving the goals of carbon peaking and carbon neutrality. Currently， climate adaptability of electric vehicles has become a technical bottleneck that restricts the widespread adoption and application of electric vehicles. To address the high energy consumption of air-conditioning systems for electric vehicles in low- and high-temperature environments， which significantly limits their driving range， this study proposes a dual-evaporation temperature heat-pump air-conditioning system. An experimental prototype and a simulation model of the proposed system are developed. Subsequently， the operating characteristics of the proposed system under variable conditions， as well as its energy-saving effectiveness relative to conventional heat-pump air-conditioning systems for electric vehicles， are experimentally and numerically investigated. The results indicate that energy efficiency of the dual-evaporation temperature heat-pump air-conditioning system initially increases and then decreases as the cylinder volume ratio of the dual-cylinder compressor increases. At a cylinder volume ratio of 1.25， energy-saving effect of the dual-evaporation temperature heat-pump air-conditioning system can reach 8.2%-30.2% at low temperatures ranging from -20 ℃ to 0 ℃ and 16.3%-48.3% at high temperatures ranging from 30 ℃ to 42 ℃.

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references

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