摘要
采用CFD模拟和缩尺模型实验,对大空间建筑喷口侧送风分层空调的竖直空气温度分布和负荷特性进行了研究。分析了建筑顶部排风比对空调负荷的影响,增大排风比可降低非空调区向空调区的对流转移负荷,而对辐射转移负荷影响较小。利用模拟结果绘制了不同排风比下的分层空调对流转移负荷线算图,并与设计手册中的对流转移负荷线算图进行了对比,给出了符合设计需要的线算图。
This study uses CFD simulation and scale model experiment to study the vertical air temperature distribution and load characteristics of the stratified air conditioning system with the nozzle air supply in large space buildings.The influence of the exhaust airflow ratio at the top of the building on the air conditioning load is analysed.Increasing the exhaust airflow ratio can reduce the convective transfer load from the non-air-conditioned area to the air-conditioned area,but has less effect on the radiation transfer load.Based on the simulation results,the convective transfer load nomographs of stratified air conditioning under different exhaust airflow ratios are drawn,and compared with that in the design manual.The nomograph that meets the design requirements is given.
作者
王海东
李倩
牟宇
Wang Haidong;Li Qian;Mu Yu(University of Shanghai for Science and Technology,Shanghai;The Architectural Design&Research Institute of Zhejiang University Co.,Ltd.,Hangzhou)
出处
《暖通空调》
2022年第4期138-145,共8页
Heating Ventilating & Air Conditioning
基金
国家重点研发计划项目“建筑工程现场工业化建造集成平台与装备关键技术开发”(编号:2018YFC0705800)。
关键词
大空间建筑
分层空调
喷口送风
空调负荷
排风比
对流转移负荷
线算图
缩尺模型实验
large space building
stratified air conditioning
nozzle air supply
air conditioning load
exhaust airflow ratio
convective transfer load
nomograph
scale model experiment
