Abstract
AbstractThe Zwietering correlation for the just‐suspended speed has been modified to include baffling and geometric effects (impeller‐to‐tank diameter ratio and impeller off‐bottom clearance) for two impeller types (high‐efficiency and pitched‐blade). Baffles are generally not required when using square tanks although they improve solids suspension performance of pitched‐blade turbines. Comparison of square tank solids suspension to that in a fully baffled cylindrical tank has also been made. Very little difference was observed in the power number, but the just‐suspended speed, torque, and power requirements were higher in the square tank.
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