کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4453102 | 1312132 | 2008 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Experimental study of filtration efficiency of nanoparticles below 20 nm at elevated temperatures Experimental study of filtration efficiency of nanoparticles below 20 nm at elevated temperatures](/preview/png/4453102.png)
This paper reports the measurements of the single fiber efficiency for a screen mesh at elevated temperatures up to 500 K for silver nanoparticles in the size range from 3 to 20 nm. Thermal rebound of particles from a filter surface is predicted to occur at 500 K for 3 nm diameter particles based on a theory by Wang and Kasper [(1991). Filtration efficiency of nanometer-size aerosol particles. Journal of Aerosol Science, 22 , 31–41]; however, rebound was not detected in our study. A small change in the single fiber efficiency with temperature was observed for a fixed mass flow as is predicted by classical filtration theory. The measured increase of 8%±5%8%±5% for particles of size 3, 4, and 5 nm is less than the 19% predicted by classical filtration theory. Measurements of particle penetration at a temperature of about 600 K were not possible because of particle production within the filter/holder.
Journal: Journal of Aerosol Science - Volume 39, Issue 6, June 2008, Pages 488–499