摘要
利用MATLAB建立简便易行的数值模型,可以得到通风期间任何时间任何空间的温度值,从而研究地铁进出通道处理新风的传热情况。在不同散热量、通道长度、风量下得到夏季典型日的通风规律。通道出口空气温度很大程度受人流量影响,在人流高峰时,气流温度不降反升。对于人流量较大的地铁站,空气通过通道后平均可降温3~4℃,节能潜力巨大。
The temperature of any space at any time during the ventilation can be obtained by building an intelligible numerical model based on MATLAB, so as to study the heat-transfer process of the fresh air handling. Under different heat dissipating, channel length and air volume, the ventilation rules of typical days in summer are available. Outlet air temperature is greatly affected by the flow density. The air temperature usually does not decline at peak hours. For the majority of subway stations with large flow density, the average temperature of the air passing the channel can be cooled by 3-4 degrees so that the method has great potential in energy saving.
出处
《建筑热能通风空调》
2017年第9期66-70,共5页
Building Energy & Environment
基金
国家自然科学基金资助(No.51678088
No.51578087)
关键词
地铁站通道
新风处理
MATLAB建模
节能潜力
passageway of metro station, air handling, MATLAB numerical model, potential of energy saving
