摘要
新风对于稀释室内空气中的有害物质、改善室内环境有着重要的意义。新风量则是衡量新风的有效手段,目前不设独立新风系统的建筑室内新风量测量广泛采用CO_2示踪气体法。本文通过一系列实验探讨CO_2初始浓度、门窗开关方式、室外风速以及室内杂物对室内新风量检测结果的影响。实验结果表明CO_2初始浓度、门窗开关方式、室外风速、室内杂物这些因素均对新风量检测值均存在不同程度的影响,其中室外风速和室内有无杂物对新风量检测结果的影响最为明显。
Fresh air is one of the most important factors which effectively dilute the indoor air harmful substances and improve the indoor air quality. In this paper, fresh air ventilation rate was used to evaluate fresh air, and CO2 was taken as the tracer gas to measure the fresh air ventilation rate, such method is widely used in non - mechanical ventilation buildings. The aim of this paper is to investigate the effects of CO2 initial concentration, the door/window switch mode, outdoor wind speed and indoor furniture on measuring indoor fresh air ventilation rate. It is found that CO2 initial concentration, the door/window switch mode, outdoor wind speed and indoor debris could all impact the measurement of fresh air ventilation rate, among of them, the outdoor wind speed and indoor furniture have the most obvious influence.
出处
《福建建设科技》
2017年第3期80-82,共3页
Fujian Construction Science & Technology
