北京某建筑中庭冬夏季空调环境的数值模拟分析  

Numerical Simulation Analysis of Air-conditioned Environment in Winter and Summer of a Building Atrium in Beijing

作　　者：姚旭辉[1] 李锐[1] 王立鑫[1] 任臻[1] 

机构地区：[1]北京建筑大学,北京100044

出　　处：《流体机械》2016年第5期72-76,50,共6页Fluid Machinery

基　　金：供热;供燃气;通风及空调工程北京市重点实验室研究基金资助项目(NR2013K07)

摘　　要：对北京某工程建筑中庭的气流组织进行数值模拟分析。对该中庭冬、夏两季,在3种不同空调送风方案下的室内气流分布和热环境进行数值模拟,分析各层平均温度、中庭垂直温差,通过有效吹风温度评价室内热舒适度,确定最优方案,为工程设计提供参考。结果表明,均匀送风时,中庭垂直温差较大,部分楼层平均温度偏离设计值,热舒适度较差;改变首层和顶层送风量,或各层梯度变化送风量,可降低垂直温差,使各层热舒适度达到要求。The air distribution of a building atrium in Beijing was simulated and analyzed. The indoor air distribution and thermal environment of the atrium under three different air supply schemes in winter and summer were simulated,the average temperature of each layer and vertical temperature difference were analyzed,and the indoor thermal comfort degree was evaluated through effective draft temperature to determine the best air supply scheme and provided references for engineering design. The result shows a large vertical temperature difference in the atrium,deviated average temperature from the design value in some floors and poor indoor thermal comfort level appeared when used the uniform air supply scheme. The vertical temperature difference in the atrium decreased and the thermal comfort level of each layer met the requirement when changing the supply air volume of the ground floor and top layer,or using gradient change air supply scheme at each layer.

关 键 词：数值模拟 中庭 暖通空调 热舒适度 气流组织 

分 类 号：TH43[机械工程—机械制造及自动化] TU831[建筑科学—供热、供燃气、通风及空调工程]