工业建筑室内多元通风送风口位置对通风效果的影响研究

Study on the Ventilation Effect of Multiple Ventilation Location in Industrial Buildings

合理的送风口位置不仅使建筑室内获得良好的通风效果,同时间接地降低空调能耗。采用计算流体动力学(CFD)的方法,对热压通风和机械送风耦合的多元通风作用下的工业厂房室内空气环境进行了模拟,探讨不同机械送风压力和送风口位置对热源厂房通风效果的影响和空气分布特征。研究表明:送风压力越大不一定能获得良好的通风效果,机械送风口位置对通风效果有较大的影响;在多数工况下,送风口位置的H_s/H=0.6时,通风效果优于H_s/H=0.3、H_s/H=0.9下的。这可以为建筑室内气流组织设计和送风口位置设计提供一定的参考。

A reasonable air inlet location not only provides a good ventilation in the building, but also reduces air-conditioning energy consumption at the same time. By adopting the computational fluid dynamics (CFD) method, a simulation test has been carried out of the indoor air environment of industrial buildings under the combined action of thermal ventilation and mechanical ventilation, followed by a tentative inquiry into the influence of different mechanical air supply pressure and position of air supply outlet on the ventilation effect of heat source workshop and air distribution characteristics. Studies have shown that the intensity of the supply pressure is not necessarily proportional to the significance of the ventilation effect. However, the location of the mechanical air inlets has a great influence on the ventilation effect. Under most conditions, the ventilation effect with Hs/H=0.6 is better than that with Hs/H=0.3 and Hs/H=0.9, which research findings help to provide a certain reference for the design of airflow in the buildings and the design of the air inlet location as well.