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客舱内的热舒适性和空气品质对乘客的健康和舒适有重要的影响,采用计算机流体力学(CFD)技术建立A320头等舱内环境的三维模型,对夏季工况下的客舱内流场进行仿真,分析桥载空调不同的送风速度对客舱CO_2浓度场、空气龄以及热舒适性的影响。以CO_2浓度和空气龄反映客舱内空气品质,PMVPPD作为客舱内热舒适评价依据。通过构建最优函数,得到CO_2浓度、空气龄和PMV-PPD与送风速度的函数关系,得到最优的送风速度,为桥载空调的控制及调节提供参考。
The thermal comfort and air quality in the passenger compartment have an important impact on the health and comfort of the passengers. The CFD technology is used to establish the three-dimensional model of the A320 first-class interior environment and to simulate the cabin flow field in the summer conditions , And analyzed the influence of different air supply speeds on the cabin CO2 concentration field, air age and thermal comfort. The CO 2 concentration and air age reflect the air quality in the cabin, and the PMVPPD is used as the evaluation basis for the thermal comfort in the cabin. By constructing the optimal function, the function of CO_2 concentration, air age and PMV-PPD as a function of air blowing velocity are obtained, and the optimal air blowing velocity is obtained, which provides reference for the control and regulation of the bridge air-conditioners.