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Turbulent mixing in baffled stirred tanks with vertical-blade impellers

Authors

  • Satoru Komori,

    Corresponding author
    1. Department of Chemical Engineering, Kyushu University, Hakozaki, Fukuoka 812, Japan
    • Department of Chemical Engineering, Kyushu University, Hakozaki, Fukuoka 812, Japan
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  • Yasuhiro Murakami

    1. Department of Chemical Engineering, Kyushu University, Hakozaki, Fukuoka 812, Japan
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Abstract

Mixing time and power consumption have been measured in baffled, paddle-agitated cylindrical tanks with single- and double-impellers, and mixing efficiency has been defined by a reciprocal of the product of the mixing time and power consumption. The mixing efficiency and mixing time of double-impeller agitation have been compared with those of single-impeller agitation, and they have been related, through a circulation time, to the flow patterns obtained from the measurements of mean axial and radial velocities.

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