摘要
本文通过分析成都地区商业建筑自然通风在时间、温度、风力上的可行性,并借助CFD软件模拟分析得出,中庭开启天窗时空气龄相比关闭天窗时平均降低了20.3%,温度降低了9.7%,换气次数由1.7次/h提高到了2.8次/h,达到了最新规范的要求。进一步分析得出过渡季节有49%的时间满足自然通风。
Based on analysis of the feasibility of natural ventilation of commercial buildings in Chengdu in time,temperature,and wind power,and with the help of CFD simulation analysis,it is concluded that the air age of atrium opening skylight is 20.3%lower than that of closing skylight,the temperature is 9.7%lower,and the air change frequency is increased from 1.7 times/h to 2.8 times/h,which meets the requirements of the latest specification;further analysis shows that the transition season has 49%of the time meets natural ventilation.
作者
李永飞
LI Yong-fei(China Team Engineering Consultant(Beijing)Co.,Ltd.Shanghai Branch,200235)
出处
《建筑热能通风空调》
2020年第9期72-75,10,共5页
Building Energy & Environment
关键词
中庭
换气次数
自然通风
atrium
ventilation rate
natural ventilation
