上部送风在顶棚辐射系统中的应用
Application of upper fresh air supply to ceiling radiation system
摘要：
为降低顶棚辐射+新风置换系统的初投资，对比了上部送风结合顶棚辐射系统和地板送风系统的空气置换效果。Fluent软件模拟结果表明，上部送风在人体活动区域内的温度场及流场均和地板送风的差别不大，热舒适效果较好,空气龄差距不大，在一定条件下可替代地板送风。
关键词：新风置换,上送风,顶棚辐射,地板送风,Fluent模拟,空气龄
Abstract：
To lower the initial investment of ceiling radiation plus the fresh air replacement system, compares the air replacement effect between the upper fresh air supply and the ceiling radiation system with the under floor air supply system. The simulation results with Fluent software show that the difference of the temperature fields and flow fields and of air ages in the occupied zone is smaller, the thermal comfort is better between upper air supply and under floor air supply, and the upper air supply can replace under floor air supply under certain conditions.
Keywords:freshairreplacement,upperairsupply,ceilingradiation,underfloorairsupply,Fluentsimulation,airage