汽车工程

汽车工程 ›› 2020, Vol. 42 ›› Issue (2): 234-239.doi: 10.19562/j.chinasae.qcgc.2020.02.014

• • 上一篇    下一篇

基于流场和温度场的轿车乘员舱热舒适性分析*

吕鸿斌1, 陈博2, 高天元1, 李圆圆1, 施骏业1, 陈江平1   

  1. 1.上海交通大学制冷与低温工程研究所,上海 200240;
    2.安徽江淮汽车股份有限公司,合肥 230601
  • 收稿日期:2019-01-24 出版日期:2020-02-25 发布日期:2020-02-25
  • 通讯作者: 陈江平,博士生导师,博士,E-mail:jpchen70@aliyun.com
  • 基金资助:
    *江淮汽车乘员舱热舒适性技术研究项目资助

Analysis on Thermal Comfort in Car Passenger Compartment Based on Flow Field and Temperature Field

Lü Hongbin1, Chen Bo2, Gao Tianyuan1, Li Yuanyuan1, Shi Junye1, Chen Jiangping1   

  1. 1.Inst. of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240;
    2.Technology Center, Jianghuai Automobile Co., Ltd., Hefei 230601
  • Received:2019-01-24 Online:2020-02-25 Published:2020-02-25

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摘要： 本文中基于流场和温度场分析不同送风温度对轿车乘员舱热舒适性的影响。仿真与实验结果基本一致,表明:在极端炎热条件下,将送风量增加至临界风量附近,有利于快速降温,并可避免过强的吹风感。入口温度较高时会使乘员舱降温效果明显变差,但舱内空气新鲜度变化不大。建议在设计空调系统时要考虑舱内空气,包括乘客脚部附近空气的流动与散热,调整风道格栅角度,以避免出现速度死区而造成散热不佳。

关键词: 轿车, 乘员舱, 热舒适性, 流场, 温度场

Abstract: Based on flow field and temperature field, the effects of different inlet air temperatures on the thermal comfort of passenger compartment are analyzed in this paper. The simulation results well agree with experimental results, showing that under extreme hot conditions, increasing inlet air volume to the vicinity of critical one is conducive to rapid heat dissipation and avoiding excessive blowing sensation. High inlet air temperature will significantly deteriorate the cooling effect of occupants, but the air freshness in the compartment has little change. It is suggested that in designing air conditioning system, sufficient consideration should be given to the flow and cooling of air in the compartment, including the vicinity of passenger's feet, and by adjusting the grille angle of duct to avoid poor cooling due to the appearance of dead speed zone

Key words: passenger compartment, thermal comfort, flow field, temperature fiel