某玻璃幕墙建筑冷负荷的模拟计算与特性分析

Simulation and Analysis of Air-conditioning Cooling Load of a Glass Curtain Wall Building

对于集办公、酒店与商业为一体的玻璃幕墙建筑来说,影响空调冷负荷的主要因素是围护结构冷负荷和新风冷负荷。本文通过设定照明开关时间表、房间人员逐时在室率和电器设备逐时使用率,模拟计算了上海某大厦设计日逐时空调冷负荷,并对设计日空调负荷特性进行了分析。同时,本文对玻璃幕墙的遮阳系数与传热系数对空调负荷的影响做了定量分析,得出玻璃幕墙的遮阳系数是影响围护结构空调冷负荷的主要因素,而传热系数的影响几乎可以忽略不计的结论。

For the building complex integrated with offices,hotels and commercial building,the main effects of cooling load for air-conditioning system are the building envelope and fresh air-cooling load.In this paper,by setting a time table for the lighting switch（%）,hourly ratio of staff at room（%） and hourly ratio of equipment utilization（%）,the cooling load for air-conditioning system was simulated and analyzed.The paper also analyzed the shading coefficient and heat transfer coefficient of the glass walls impacting on air conditioning load.Results show that shading coefficient is the main effect of building envelope cooling load,while the effects of heat transfer coefficient is almost negligible.