Influence of Tank Bottom Shear Stress on Complete Fluidization of Spherical Solid Particles in a Square Surface Agitation Tank
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概要
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The influence of tank bottom shear stress on complete fluidization of spherical solid particles in a square surface agitation tank is investigated. The shear stress on the tank bottom is measured by the electrochemical method, which utilizes the reduction of dissolved oxygen on point electrodes embedded in the tank bottom.The shear stress has a different value for each point electrode. It is found that complete fluidization of particles is attained when the shear stress all over the tank bottom exceeds the minimum shear stress required for the fluidization of particles, which is dependent on the properties of the particle and surrounding liquid in the tank. The empirical equation, which shows the relationship between the minimum shear stress required for the fluidization of particle and the properties of particle and liquid in the tank, is obtained. By use of this equation, the relationship between the minimum impeller speed required for complete fluidization and experimental conditions is further discussed.
- 社団法人 化学工学会の論文
著者
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UNNO HAJIME
Department of Bioengineering, Tokyo Institute of Technology
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Unno Hajime
Department Of Bioengineering Tokyo Institute Of Technology
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Unno Hajime
Department Of Bioengineering Faculty Of Bioscience And Biotechnology Tokyo Institute Of Technology
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TAKASE Hitoshi
Department of Material Systems Engineering and Life Science, Toyama University
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AKEHATA Takashi
Department of Industrial Chemistry, Science University of Tokyo
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Takase H
Toyama Univ. Toyama Jpn
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Takase Hitoshi
Department Of Material Systems Engineering And Life Science Toyama University
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Akehata Takashi
Department Of Industrial Chemistry Science University Of Tokyo
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TAKASE HITOSHI
Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology
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