混合热源自然置换通风热力分层高度数值模拟  

The Numerical Simulation of Thermal Stratification in Natural Displacement Ventilated Room with Two Heated Sources

作　　者：常远[1] 刘泽勤[1] 柴永艳[1] 

机构地区：[1]天津商业大学天津市制冷技术重点实验室

出　　处：《建筑热能通风空调》2012年第1期65-68,共4页Building Energy & Environment

摘　　要：本文通过数值模拟方法对具有单点热源和单面垂直发热墙体混合工况下的室内自然置换通风热力分层特性进行研究。研究结果显示,在所研究对象的参数变化范围内,室内自然置换通风热力分层高度受有效通风面积的影响,热力分层高度随有效通风面积的增大而升高,反之降低。室内自然置换通风热力分层高度基本不受单点热源和单面垂直发热墙体发热量的影响。The thermal stratification of mixed condition with a single-vertical heated wall and a single point heated source in the natural displacement ventilated typical indoor office was numerical simulated in this study.The simulation result indicated that the thermal stratification in the studied room was influenced by the effective opening area.The height of thermal stratification increased with the increasing of effective opening area,in turn,reduced with the reducing of effective opening area.The heating value of single point heated source and single-vertical heated wall was little affected to the varying heights of thermal stratification.

关 键 词：自然置换通风 热力分层高度 数值模拟 两种热源 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]