带冷地面(顶板)置换通风系统回归公式分析

The Regressive Formula Analysis on Displacement Ventilation System with Cooled Floor (Cooled Ceiling)

近年来置换通风技术逐步推广运用到各个领域。目前比较常用的是冷地板或者冷顶板分别与置换通风相结合。本文以CFD模型为基础,针对这种带有冷地面(顶板)的置换通风系统提出了一种数据回归方程的设计准则,同时就三种空调方式中风系统的供冷能力以及所能达到的热舒适程度等问题进行对比分析。

The displacement ventilation technique has been applied to many areas gradually in recent years. Combining cooled floor or cooled ceiling comparatively with displacement ventilation in common, a series of new air condition methods affected by both radiation and convection has formed. Based on the method of CFD, this paper puts forward the design criterion which is about regressive formula on the date of displacement ventilation system with cooled floor （cooled ceiling）. At the same time, the cooling ability and the thermal comfort of the air system in the three air condition methods are compared and analyzed.