CC/DV系统中冷却顶板位置对室内环境的影响

采用计算流体力学(CFD)方法,模拟了在冷却顶板+置换通风联合空调系统(CC/DV)模型中,冷板在顶棚的位置不同导致室内的空气温度、速度分布变化情况。通过对模拟结果进行讨论,结果表明:冷板位于人体热源的上方顶棚能增强人体的热羽流强度,产生强度很大的热羽流遇到顶棚向下返回的过程中,可能会破坏房间下部置换通风良好的气流场。因此如果室内存在过强热源时,应避免将冷板设置在其上方。

Comparison of Different Position of Chilled Ceiling to Investigate the Effect of Indoor Air Environment

This paper uses a Computational Fluid Dynamics(CFD) model to simulate the indoor airflow pattern,and temperature distributions under displacement ventilation in combined system of chilled ceiling.The results of an investigation simulation indicate that a cooled ceiling which on the thermal person will enforce the thermal plumes.This powerful thermal plume has a strong impact on displacement airflow pattern under part of the room.The larger thermal object in room under displacement ventilation in combined sy...