摘要
采用示踪气体衰减法,对不同开口面积下的自然置换通风进行研究。通过测定室内温度场和CO2浓度场,分别比较自然置换通风过程中不同开口面积的温度效率以及CO2浓度衰减情况。结果表明,当排风口面积一定时,自然置换通风的温度效率与进风口面积呈单调递增关系。并且,室内CO2浓度衰减速率随着进风口面积的增加而增大。
The performance of natural displacement ventilation include temperature efficiency and CO2 decay, with three different opening areas, has been compared by tracer-gas measurement, which have obtained temperature field and CO2 concentration field in this paper. The result shows that the temperature efficiency will be higher and the CO2 decay more quickly as the inlet becomes bigger, when the outlet is the same.
出处
《建筑热能通风空调》
2014年第1期17-20,共4页
Building Energy & Environment
基金
国家自然科学基金(No.40975093)
关键词
开口面积
温度效率
无量纲浓度
opening area, temperature efficiency, non-dimensional concentration
