李琪;张晓东;崔明辉;

• 1:河北科技大学建筑工程学院

摘要(Abstract)：

为了更有效地排除高大空间厂房内的污染物并达到节能的目的,运用计算流体力学方法研究了侧上圆角送风和屋顶中间半圆送风方式下的高大空间厂房内微小颗粒物的浓度分布情况,即在不同污染源强度下对应不同换气次数的浓度分布规律。结果表明,无论哪种送风方式,换气次数越多或者污染源强度越低时,空间内产生的颗粒物浓度越小;越接近地面靠近回风口,颗粒物浓度越大,越有利于其排出;且在相同情况下,采用屋顶中间半圆送风方式时,靠近回风口处的颗粒物浓度均高于采用侧上圆角送风方式时的颗粒物浓度。因此,高大空间中,一定颗粒物浓度水平下,相比其他送风方式,屋顶中间半圆送风方式需要的换气次数较少,更能达到节能目的。研究结果能够为相关企业进行厂房内粉尘污染控制提供参考。

关键词(KeyWords)： 供热与供燃气工程;矢流送风;高大空间;颗粒物浓度;气-固两相流;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 河北省建设科技研究计划项目(2013-120)

作者(Author): 李琪;张晓东;崔明辉;

Email:

DOI:

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