A method of computing the torque and power requirements of a dynamic separator for different speeds of operation is proposed. The method makes use of the experimentally determined drag coefficients for the existing types of blade geometry of the impeller and the principles of energy and momentum for the calculation of torque at different speeds. The interference effect between blades is taken into account using an empirical formula. Comparison of the computed values of power with the actual power measurements shows that there is good agreement between them.
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