大空间建筑下送风分层空调垂直温度分布研究  

Study on Vertical Temperature Profiles of Stratified Air Conditioning with Low-side Wall Air Supply in Large Space Buildings

作　　者：黄晨[1] 李佳霖 张亚林 王昕[1] Huang Chen;Li Jialin;Zhang Yalin;Wang Xin(School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China;China Gezhouba Real Estate Co., Ltd., Beijing, 100020, China)

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]中国葛洲坝集团房地产开发有限公司,北京100020

出　　处：《制冷学报》2020年第2期136-143,共8页Journal of Refrigeration

基　　金：国家自然科学基金(51278302)资助项目。

摘　　要：本文对某一下送下回的实际大空间建筑建立了求解室内空气垂直温度分布的多节点模型,对该建筑进行了5个不同送风量(1.5×10^4~2.5×10^4 m^3/h)和室外气象参数(28~34℃)的热环境实验。实验结果表明:在各工况下垂直空气温度分布各温度的模型计算值与实测值的最大相对误差分别为6%、7%、14%、-6%和15%,各工况标准方差平均值为2.05℃。同时,本文利用所建多节点模型对大空间建筑下送风分层空调热环境受空调送风量、室外气温、太阳辐射影响的特性进行了分析,绘制了随室内外环境参数变化来调节空调送风量的曲线图。A multi-node model was developed to predict the vertical temperature profiles of a stratified air-conditioning system in certain large space building with low-sidewall air supply and return.Then experiments were carried out in the building under 5 working conditions with a different air volume(1.5×10^4-2.5×10^4 m^3/h)and outdoor meteorological parameters(28-34℃).The results show that the maximum relative errors of the calculated values of each condition are 6%,7%,14%,-6%,and 15%,respectively and the average standard deviation of each condition is 2.05℃,which validated the multi-node model.Afterwards,the multi-node model was used to analyze the characteristics of the thermal environment of stratified air-conditioning system in large space buildings with low-sidewall air supply and return by changing air volume,outdoor air temperature,and solar radiation.Finally a graph is drawn to guide the adjustment of air volume as indoor and outdoor environmental parameters changes.

关 键 词：大空间建筑 下送风 分层空调 垂直温度分布 多节点模型 

分 类 号：TB657.2[一般工业技术—制冷工程] TB611