透明围护结构位置分布对高大空间热风供暖能耗的影响

摘要

利用数值模拟方法探究了玻璃总面积不变时,玻璃位置对高大空间热风供暖效果及能耗的影响.结果表明:侧墙上玻璃面积的增大(即屋顶上玻璃面积的减小)会增大室内垂直温度梯度,减小能量利用率;通过增大送风速度保证人员空间温度舒适时,随着侧墙上玻璃面积的增大,供暖能耗大幅上升.%Numerical simulations are employed to explore the influences of the position of glass on room heating and energy consumption in a large-height space with a constant total glass area.The results show that when the area of the glass set on the side wall is increased (i.e.,the area of glass set on the roof is decreased),the vertical temperature gradient will increase as well and the energy-using coefficient will drop;when the thermal comfort in the occupied zone is ensured by increasing the air supply velocity,the heating energy consumption increases substantially with increasing the area of glass on the side wall.