Home Journals Articles Updates About
CN
image
收藏切换
Research on the performance of the transcritical CO2 refrigeration heat pump system for thermostatic transport vehicles
收藏切换
Mengying YANG1, Yulong SONG1, Shouguo WANG2, Feng CAO1
Fluid Machinery | 2025, 53(3) : 26 - 35
Less
收藏切换
Fluid Machinery | 2025, 53(3): 26-35
Research on the performance of the transcritical CO2 refrigeration heat pump system for thermostatic transport vehicles
Full
Mengying YANG1, Yulong SONG1, Shouguo WANG2, Feng CAO1
Affiliations
  • 1School of Energy and Power Engineering，Xi'an Jiaotong University，Xi'an 710049，China
  • 2China Railway Economic and Planning Research Institute Co.，Ltd.，Beijing 100038，China
Published: 2025-03-30 doi: 10.3969/j.issn.1005-0329.2025.03.004
Outline
收藏切换

This study investigates the feasibility of applying CO2 systems to thermal management in temperature-controlled rail transport vehicles. A transcritical CO2 refrigeration heat pump system for thermostatic transport vehicles was developed based on a multiphysics simulation platform，with simulation results validated through experimental testing. Further research was conducted on system discharge pressure and charge amount under varying operating conditions. Results indicate that optimal discharge pressure increases with rising ambient temperature and indoor heat exchanger inlet air temperature. A predictive correlation for optimal discharge pressure，using ambient temperature and inlet air temperature as independent variables，was established through data simulation. Both ambient and inlet air temperatures significantly influence the system's refrigerant charge amount，with an optimal charging range of 3.2~6.1 kg across all operating conditions. The well-designed transcritical CO2 system demonstrates excellent performance over a wide temperature range，particularly achieving heating COPs above 3.2. The optimized thermal management system maintained stable temperature control with only two start-stop cycles within 300 000 seconds. These findings provide theoretical support for promoting transcritical CO2 thermal management technology in thermostatic transport vehicles.

transcritical CO2 system  /  thermostatic transport vehicles  /  stochastic prediction of discharge pressure  /  comprehensive optimization of charge amount
杨梦莹, 宋昱龙, 王守国, 曹锋. 恒温运输车跨临界CO2制冷热泵系统性能研究. 流体机械, 2025 , 53 (3) : 26 -35 . DOI: 10.3969/j.issn.1005-0329.2025.03.004
Mengying YANG, Yulong SONG, Shouguo WANG, Feng CAO. Research on the performance of the transcritical CO2 refrigeration heat pump system for thermostatic transport vehicles[J]. Fluid Machinery, 2025 , 53 (3) : 26 -35 . DOI: 10.3969/j.issn.1005-0329.2025.03.004
Appendix
Less
Year 2025 volume 53 Issue 3
109
38
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.1005-0329.2025.03.004
  • Receive Date：2024-04-20
  • Online Date：2026-10-20
  • Published：2025-03-30
Article Data
Affiliations
History
  • Received：2024-04-20
  • Revised：2024-10-20
Affiliations
    1School of Energy and Power Engineering，Xi'an Jiaotong University，Xi'an 710049，China
    2China Railway Economic and Planning Research Institute Co.，Ltd.，Beijing 100038，China
References
Share
https://castjournals.cast.org.cn/joweb/ltjx/EN/10.3969/j.issn.1005-0329.2025.03.004
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House