doi: 10.18178/ijesd.2020.11.11.1302
Effect of Particle Size Distributions on Minimum Fluidization Velocity with Varying Gas Temperature
Krittin Korkerd
,
Chaiwat Soanuch ,
Pornpote Piumsomboon ,
Benjapon Chalermsinsuwan
- with Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
Abstract
The particle size distribution (PSD) is an important property that can influence the hydrodynamics and chemical conversion in fluidized bed system. The objective of this study is to investigate the effect of PSDs of particle and gas temperature on minimum fluidization velocity (U<sub>mf</sub>). Here, the silica sand with three average diameters and five PSDs including narrow cut, Gaussian, Gaussian with high standard deviation, negative skewed distribution and positive skewed distribution were used. The considered gas temperature ranged from 30 to 120 °C. The results showed that the U<sub>mf</sub> values with wide PSDs were lower than the U<sub>mf</sub> values for narrow cut particle with the same average diameter. The reason can be explained by the addition of smaller particle will improve the fluidization characteristics. The standard deviation and skewness of PSD also influenced on the U<sub>mf.</sub> The U<sub>mf </sub>was observed to decrease with increasing gas temperature. In addition, the effect of average particle diameter could also be seen. The U<sub>mf </sub>increased with the increasing of average particle diameter.
Keywords
- Gas-solid fluidization
- minimum fluidization velocity
- particle size distribution
- gas temperature
How to Cite
Krittin Korkerd, Chaiwat Soanuch, Pornpote Piumsomboon, and Benjapon Chalermsinsuwan, "Effect of Particle Size Distributions on Minimum Fluidization Velocity with Varying Gas Temperature," International Journal of Environmental Science and Development, vol. 11, no. 11, pp. 524-529, 2020. https://doi.org/10.18178/ijesd.2020.11.11.1302
Copyright & License
Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).