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The Minimum Fluidization Velocity of Gaussian Distribution Particle System According to Standard Deviation  

Jang, Hyun Tae (Dept. of Chem. Eng., Hanseo University)
Park, Tae Sung (Carbon Dioxide Reduction Sequestration R&D Center, Korea Institute of Energy Research)
Cha, Wang Seog (Dept. of Civil and Environ. Eng., Kunsan Nat'l University)
Publication Information
Korean Chemical Engineering Research / v.46, no.3, 2008 , pp. 567-570 More about this Journal
Abstract
The present study investigated the applicability of the minium fludization velocity measuring method using linear regression analysis between the standard deviation of pressure fluctuation and gas velocity in multi-particle sand on a fluidized bed 0.109 in inner diameter. We measured minium fludization velocity according to the standard deviation of particle distribution in Gaussian distribution. The measured value compared with other researchers' equations. The minium fludization velocity derived from the linear regression analysis of the standard deviation of pressure fluctuation and pressure drop inside the bed. We also found that the minium fludization velocity of a multi-particle system using the standard deviation of pressure fluctuation must be measured at freely bubbling region.
Keywords
Minimum Fludization Vlocity; Pressure Fluctuation Properties; Gaussian Distribution; Fluidized Bed;
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