Abstract： The semi-empirical formula method was adoped to analyze the dust deposition rules in ventilation ducts. The effect of parameters including the particle diameter, gas inlet velocity, temperature and humidity and so on on dust deposition were investigated. The results indicate that the turbulent deposition rate of particles with small diameter decreases with the increase of particle diameter. The turbulent deposition rate of particles with large diameter increases with the increase of particle diameter. The turbulent deposition rate of particles with larger diameter is higher at a higher gas velocity. Increasing the air humidity or decreasing the air temperature can make the turbulent deposition rate of dusts increase.

Keywords： dust; particle; ventilation duct; turbulent deposition

中图分类号：TU834 文献标志码：A

文章编号：1008-5548（2014）02-0056-05

DOI:10.13732/j.issn.1008-5548.2014.02.013

收稿日期：2013-07-10， 修回日期：2013-08-06，在线出版时间：2014-05-04。

第一作者简介：李伟（1981—），女，讲师，硕士，研究方向为航空热能工程和工业通风。 E-mail： li_wei717@sohu.com。