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Effects of ventilation strategies and source locations on indoor particle deposition

机译：通风策略和源位置对室内颗粒沉积的影响

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摘要

A computer model for predicting aerosol dispersion in indoor spaces was validated with experimental data found in the literature. The validated model was used to explore the effect of the area or point source locations on aerosol particle transportation in ventilation rooms with rough surfaces. Two different ventilation strategies were studied: mixing ventilation (MV) and underfloor air distribution (UFAD) system. The simulation results show that in MV, the particle concentration and removal effectiveness are little dependent on the position of the pollutant sources. In UFAD, the source location has a strong impact on the distribution and removing of the contaminants. The particle removal performance strongly depends on the ventilation efficiency and the particle deposition loss in the room with rough surfaces. The important consideration in both the relative ventilation efficiency and the deposition rate is the relative position of the sources to the main airflow and the occupied zone in an UFAD room.
机译：利用文献中发现的实验数据验证了预测室内空间气溶胶扩散的计算机模型。经过验证的模型用于探索面积或点源位置对具有粗糙表面的通风室中气溶胶颗粒传输的影响。研究了两种不同的通风策略：混合通风（MV）和地板下空气分配（UFAD）系统。模拟结果表明，在MV中，颗粒物的浓度和去除效果几乎不受污染物源位置的影响。在UFAD中，污染源的位置对污染物的分布和清除有很大影响。颗粒去除性能在很大程度上取决于通风效率和表面粗糙的房间中的颗粒沉积损失。相对通风效率和沉积速率的重要考虑因素是UFAD房间中源相对于主要气流和占据区域的相对位置。

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