Experimental Study on the Performance of Secondary Throttling CO<sub>2</sub> Heat Pump System for Electric Vehicles

Chen Lang; Wu Weidong; Wang Fengxian; Wei Jiaqi; Zhang Hua

doi:10.12465/j.issn.0253-4339.2025.06.056

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Experimental Study on the Performance of Secondary Throttling CO₂ Heat Pump System for Electric Vehicles

更新时间：2025-12-03

- Experimental Study on the Performance of Secondary Throttling CO₂ Heat Pump System for Electric Vehicles
- Journal of Refrigeration Vol. 46, Issue 6, Pages: 56-64(2025)
- 作者机构：
  
  上海理工大学能源与动力工程学院　上海　 200093
- 作者简介：
  
  Wu Weidong, male, professor, School of Energy and Power Engineering, University of Shanghai for Science and Technology, 86-21-55271875, E-mail: usstwwd@163.com. Research fields: refrigeration and cryogenic engineering, vehicle thermal management.
- 基金信息：
- DOI：10.12465/j.issn.0253-4339.2025.06.056
  CLC： TB61⁺1;U469.72
- Received：07 July 2024，
  
  Revised：2024-08-08，
  
  Accepted：26 September 2024，
  
  Published：16 December 2025
- 稿件说明：
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Chen Lang, Wu Weidong, Wang Fengxian, et al. Experimental Study on the Performance of Secondary Throttling CO₂ Heat Pump System for Electric Vehicles[J]. Journal of Refrigeration, 2025, 46(6): 56-64.
DOI：

Chen Lang, Wu Weidong, Wang Fengxian, et al. Experimental Study on the Performance of Secondary Throttling CO₂ Heat Pump System for Electric Vehicles[J]. Journal of Refrigeration, 2025, 46(6): 56-64. DOI： 10.12465/j.issn.0253-4339.2025.06.056.

摘要

为进一步提高CO

热泵系统性能，提出一种单级压缩二次节流串联气冷器的电动汽车CO

热泵空调系统。实验对比了二次节流系统与传统一次节流系统在不同环境温度条件下达到相同送风温度时的制热性能，并研究了在不同环境温度下系统制冷性能最优时的循环特性。结果表明：采用二次节流可有效降低CO

热泵系统能耗，提高系统COP，且环境温度越低，二次节流系统优势越明显；当系统送风温度为40 ℃、环境温度为-20 ℃时，二次节流系统功耗相比一次节流系统低256.1 W（降低15.4%），COP比一次节流系统高0.67（提高18.3%）。采用二次节流的CO

热泵空调系统，在-20 ℃的全新风环境下，系统送风温度为40 ℃时，制热COP为4.33；在43 ℃的全新风环境下，系统送风温度为23.6 ℃时，制冷COP可达到2.46，当室外环境温度超过35 ℃，系统制冷性能衰减较为显著。

Abstract

A CO

heat pump air-conditioning system with single-stage compression secondary throttling and a series gas cooler is proposed to enhance the performance of a CO

heat pump system. The heating performances of secondary and conventional throttling systems to achieve identical supply air temperatures under different ambient temperature conditions were compared experimentally

and the cycle characteristics when the cooling performance of the system was optimal at different ambient temperatures were investigated. The results showed that the implementation of a secondary throttling system could significantly reduce the energy consumption of the CO

heat pump system

thereby enhancing the system coefficient of performance (COP). Furthermore

the advantages of the secondary throttling system become more pronounced at lower ambient temperatures. Under conditions where the system supply air temperature was 40 ℃ and the ambient temperature was -20 ℃

the power consumption of the secondary throttling system was 256.1 W and 15.4% lower than that of the conventional throttling system

and its COP w

as 0.67 and 18.3% higher. Under a fresh air environment at -20 ℃

the CO

heat pump air conditioning system utilizing the secondary throttling could achieve a heating COP of up to 4.33 when the supply air temperature was 40 ℃. Under a fresh air environment at 43 ℃

the system could reach a cooling COP of 2.46 when the supply air temperature was 23.6 ℃. Additionally

it was observed that the cooling performance of the system significantly deteriorated when the ambient temperature exceeded 35 ℃.

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references

李文翔 , 李晔 , 董洁霜 , 等 . 引入碳交易机制的新能源汽车发展路径研究 [J ] . 系统仿真学报 , 2021 , 33 ( 6 ): 1451 - 1465 .

( LI Wenxiang , LI Ye , DONG Jieshuang , et al . Development paths of new energy vehicles incorporating CO 2 emissions trading scheme [J ] . Journal of System Simulation , 2021 , 33 ( 6 ): 1451 - 1465 .)

HOSSAIN M S , KHAN M J H . Developments and future prospects of electric vehicle technologies [M ] // Encyclopedia of Renewable Energy, Sustainability and the Environment . Amsterdam : Elsevier , 2024 : 699 - 732 .

JIANG Feng , YUAN Xuhui , HU Lingling , et al . A comprehensive review of energy storage technology development and application for pure electric vehicles [J ] . Journal of Energy Storage , 2024 , 86 : 111159 .

SCHWEIZER M , STÖCKL M , TUTUNARU R , et al . Influence of heating, air conditioning and vehicle automation on the energy and power demand of electromobility [J ] . Energy Conversion and Management: X , 2023 , 20 : 100443 .

YU Tianchan , LI Xianting , WANG Baolong , et al . Quantitative analysis of factors contributing to driving range degradation of battery electric vehicles [J ] . Applied Thermal Engineering , 2024 , 250 : 123520 .

GUO Rong , LI Lu , SUN Ziyi , et al . An integrated thermal management strategy for cabin and battery heating in range-extended electric vehicles under low-temperature conditions [J ] . Applied Thermal Engineering , 2023 , 228 : 120502 .

王从飞 , 曹锋 , 李明佳 , 等 . 碳中和背景下新能源汽车热管理系统研究现状及发展趋势 [J ] . 科学通报 , 2021 , 66 ( 32 ): 4112 - 4128 .

( WANG Congfei , CAO Feng , LI Mingjia , et al . Research status and future development of thermal management system for new energy vehicles under the background of carbon neutrality [J ] . Chinese Science Bulletin , 2021 , 66 ( 32 ): 4112 - 4128 .)

宋昱龙 , 王海丹 , 殷翔 , 等 . 跨临界CO 2 蒸气压缩式制冷与热泵技术综述 [J ] . 制冷学报 , 2021 , 42 ( 2 ): 1 - 24 .

( SONG Yulong , WANG Haidan , YIN Xiang , et al . Review of transcritical CO 2 vapor compression technology in refrigeration and heat pump [J ] . Journal of Refrigeration , 2021 , 42 ( 2 ): 1 - 24 .)

JIANG Pengnan , LI Yixi , BAI Fuli , et al . Coordinating to promote refrigerant transition and energy efficiency improvement of room air conditioners in China: mitigation potential and costs [J ] . Journal of Cleaner Production , 2023 , 382 : 134916 .

张朝晖 , 陈敬良 , 高钰 , 等 . 《蒙特利尔议定书》基加利修正案对制冷空调行业的影响分析 [J ] . 制冷与空调(北京) , 2017 , 17 ( 1 ): 1 - 7 .

( ZHANG Zhaohui , CHEN Jingliang , GAO Yu , et al . Analysis on the influence of Kigali Amendment to Montreal Protocol to refrigeration and air-conditioning industry [J ] . Refrigeration and Air-conditioning , 2017 , 17 ( 1 ): 1 - 7 .)

PARK W Y , SHAH N , VINE E , et al . Ensuring the climate benefits of the Montreal Protocol: global governance architecture for cooling efficiency and alternative refrigerants [J ] . Energy Research & Social Science , 2021 , 76 : 102068 .

KUANG G , OHADI M M , ZHAO Y . Experimental stu dy on gas cooling heat transfer for supercritical CO 2 in microchannels [C ] // Proceedings of ASME 2004 2nd International Conference on Microchannels and Minichannels . New York : ASME , 2008 : 325 - 332 .

LI W , KADAM S , YU Z . Heat transfer enhancement of tubes in various shapes potentially applied to CO 2 heat exchangers in refrigeration systems: review and assessment [J ] . International Journal of Thermofluids , 2023 , 20 : 100511 .

金纪峰 . 采用微通道换热器的二氧化碳汽车空调系统研究 [D ] . 上海 : 上海交通大学 , 2011 .

( JIN Jifeng . Study on carbon dioxide automobile air conditioning system with microchannel heat exchanger [D ] . Shanghai : Shanghai Jiao Tong University , 2011 .)

WANG Yibiao , DONG Junqi , JIA Shiwei , et al . Experimental comparison of R744 and R134a heat pump systems for electric vehicle application [J ] . International Journal of Refrigeration , 2021 , 121 : 10 - 22 .

RIGOLA J , ABLANQUE N , PÉREZ-SEGARRA C D , et al . Numerical simulation and experimental validation of internal heat exchanger influence on CO 2 trans-critical cycle performance [J ] . International Journal of Refrigeration , 2010 , 33 ( 4 ): 664 - 674 .

CHEN Yiyu , ZOU Huiming , DONG Junqi , et al . Experimental investigation on the heating performance of a CO 2 heat pump system with intermediate cooling for electric vehicles [J ] . Applied Thermal Engineering , 2021 , 182 : 116039 .

ZHANG Zhenying , WANG Hongli , TIAN Lili , et al . Thermodynamic analysis of double-compression flash intercooling transcritical CO 2 refrigeration cycle [J ] . The Journal of Supercritical Fluids , 2016 , 109 : 100 - 108 .

ZOU Huiming , YANG Tianyang , TANG Mingsheng , et al . Ejector optimization and performance analysis of electric vehicle CO 2 heat pump with dual ejectors [J ] . Energy , 2022 , 239 : 122452 .

王丹东 , 陈江平 , 俞彬彬 , 等 . CO 2 车用热泵空调系统技术研发及性能提升 [J ] . 制冷学报 , 2018 , 39 ( 5 ): 47 - 52 .

( WANG Dandong , CHEN Jiangping , YU Binbin , et al . Technology development and performance improvement of CO 2 automobile heat pump air-conditioning system [J ] . Journal of Refrigeration , 2018 , 39 ( 5 ): 47 - 52 .)

SIDDIQUI F R , ELMINSHAWY N A S , ADDAS M F . Design and performance improvement of a solar desalination system by using solar air heater: experimental and theoretical approach [J ] . Desalination , 2016 , 399 : 78 - 87 .

LI Zhenbo , WU Weidong , WANG Jing , et al . Effect of compressor speeds on performance of a closed loop heat pump drying system [J ] . Applied Thermal Engineering , 2021 , 195 : 117220 .

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⁰

Experimental Study on the Performance of Secondary Throttling CO2 Heat Pump System for Electric Vehicles

DOI：10.12465/j.issn.0253-4339.2025.06.056

摘要

Abstract

关键词

Keywords

references

Experimental Study on the Performance of Secondary Throttling CO₂ Heat Pump System for Electric Vehicles