摘要
对碰撞射流通风在定风量系统下的供热特性进行了数值模拟,并且对不同送风口安装高度和送风温差下的室内温度场分布和热气流扩散距离进行了分析。结果表明:同一送风温差时,送风口高度越高,热气流扩散距离越短;同一送风口高度时,送风温差越小,热气流扩散距离越长,由温度分层引起的不舒适感就会减弱。
The heating characteristic of impinging jet ventilation under constant air volume system was studied by numerical simulation,the distribution of indoor temperature field and diffusion distance of hot air were analysized in the different installation height of air supply outlet and different air supply temperature difference.The results showed that： in the same air supply temperature difference,the taller the height of air supply outlet,the shorter the diffusion distance of hot air;In the same height of air supply outlet,the smaller the air supply temperature difference,the longer the diffusion distance of hot air,and the uncomfortable sense caused by thermal stratification would be reduced.
出处
《制冷空调与电力机械》
2011年第2期81-84,共4页
Refrigeration Air Conditioning & Electric Power Machinery
关键词
定风量系统
碰撞射流通风
扩散距离
通风效率
constant air volume system
impinging jet ventilation
diffusion distance
ventilation efficiency
