大空间建筑喷口侧送风分层空调负荷特性研究  

Load characteristics of stratified air conditioning systems with nozzle air supply in large space buildings

作　　者：王海东[1] 李倩[1] 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)

机构地区：[1]上海理工大学,上海200093 [2]浙江大学建筑设计研究院有限公司,杭州

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)。

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.

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 

分 类 号：TU831.2[建筑科学—供热、供燃气、通风及空调工程]