大型酒店建筑物主风口风量对楼外噪声影响

Influence of wind rate of main air port on noise outside building in large-scale all-around hotel

用试验和理论分析了大型综合性酒店类建筑物主风口总风量(新风+排风)对该侧楼外噪声的影响.风量过大则该侧噪声超标,对主风口总风量的选定构成约束.试验证明主风口侧的总风量不超过550000m3/h(风口面积77m2),即约为全楼现行空调用总风量(新风+排风)的25%左右,可保证噪声不超标.

The influence of the wind rate (fresh air rate and exhaust air rate) of the main air port on the noise spreading from inside to outside in large-scale all-around hotel was discussed. If the wind rate was excessive, the noise of this side would go beyond the standard rate, thus the amount of the fresh air should be restrained. To ensure the noise satisfy the needs of the standard rate, the total wind rate of the main air port, less than 550000 m3/h (S=77 m2) and about 25% of the total wind rate (fresh air rate and exhaust air rate) of the present whole-building air condition, was recommended.