摘要
本文研究了电动汽车并联式热泵热管理系统在低温环境下的制热性能,对水冷冷凝器进行选型分析,从低压流阻对系统性能影响的分析角度进行仿真,对比了并联式与串联式热泵系统在不同环境温度下的能效表现。此外,研究评估了压缩机转速调节对噪声、振动和声振粗糙度的潜在影响。仿真结果表明:并联式热泵系统在0℃工况下的性能系数较串联式系统高10%~15%,在-10℃新风工况下高5%~80%。研究强调了优化热泵系统设计、提升散热器单体性能及调整运行策略的重要性,旨在提高电动汽车在低温环境下的热管理性能和乘客的舒适性体验。
The heating performance of parallel heat pump thermal management system for electric vehicles in low-temperature environments is explored in this paper.The impact of low-pressure flow resistance on system performance is revealed through simulation analysis,and the energy efficiency performance of parallel and series heat pump systems is compared at different ambient temperatures.In addition,the potential impact of compressor speed adjustment on noise,vibration and harshness is evaluated.The simulation result shows that the coefficient of performance of the parallel heat pump system is 10%-15%higher than that of the series system at 0℃steady state operating,and 5%-80%higher at-10℃fresh air condition.The importance of optimizing heat pump system design,enhancing individual radiator performance,and adjusting operational strategies is emphasized by the research,with the objectives of improving the thermal management performance of electric vehicles in low-temperature environments and enhancing passenger comfort.
作者
王天英
张驰
李春彤
陆冰清
陈江平
施骏业
WANG Tianying;ZHANG Chi;LI Chuntong;LU Bingqing;CHEN Jiangping;SHI Junye(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;IM Motors,Shanghai 201804,China)
出处
《制冷技术》
2025年第3期22-27,49,共7页
Chinese Journal of Refrigeration Technology
基金
国家重点研发计划(No.2020YFA0711500)
国家自然科学基金(No.52306104)。
关键词
热泵
热管理能耗
性能系数
电动汽车
Heat pump
Thermal management energy consumption
Coefficient of performance
Electric vehicle
