摘要
通过模拟地板送风系统的两种典型系统形式,从获得的温度场、速度场、PMV场表明,下送上回系统较容易满足垂直空气温差的限值,下送下回系统容易超出垂直空气温差的限值,在低热力长度尺度(lm/H)时下送下回系统比下送上回系统容易获得舒适的环境,在高热力长度尺(lm/H)时,两种系统形式均易产生偏冷的室内环境。
Through the simulation of two typical forms of underfloor air distribution system,the velocity field and temperature field,PMV field were obtained,the results show that the Top Return system（TR） is easy to satisfy the vertical air temperature difference limits,while the Floor Return system（FR） is easy to exceed the vertical air temperature difference limits,and FR will easily obtain comfortable indoor climate when the thermal length scale（lm/H） is low,both of FR and TR will lightly generate a cold indoor environment when the thermal length scale（lm/H） is high.
出处
《建筑热能通风空调》
2012年第1期61-64,共4页
Building Energy & Environment
关键词
地板送风系统
热舒适
数值模拟
热力长度尺度
Under Floor Air Distribution system（UFAD）
thermal comfort
numerical simulation
thermal length scale
