Partic. vol. 6 no. 5 pp. 362-368 (October 2008)
doi: 10.1016/j.partic.2008.05.005

Effect of source location on particle dispersion in displacement ventilation rooms

Ke Zhong, Yanming Kang^*, Youjun Wang

ymkang@dhu.edu.cn

Abstract

A proposed computer model for predicting aerosol particle dispersion in indoor spaces was validated with experimental data found in the literature, and is then used to study the effect of the area and point source locations on particle dispersion in displacement ventilation (DV) rooms. The results show that aerosol source location has a strong impact on the spatial distribution and removal rate of indoor particles. Particle removal performance depends strongly on ventilation efficiency and particle deposition rate on indoor surfaces. Important consideration for both relative ventilation efficiency and deposition rate consists of the position of the aerosol source relative to the main airflow pattern and the occupied zone.

Keywords

Particle dispersion; Displacement ventilation; Source location; Ventilation efficiency; Deposition efficiency