Investigation of Power Consumption in a Mixing Device with Swinging Movement of the Actuating Element

Resumo

A mixing device with swinging (rotationally reciprocating) movement of the actuating element, the advantage of which, compared to the classical units, is that it produces a higher mixing rate, is investigated. In designing the new devices, it is necessary to know the moment of resistance of the liquid medium and the power consumed in the mixing process. It is shown that, in the general case, the actuating element is affected by both the linear and quadratic resistance of the fluid and formulas are found for determining the moment of resistance and the power. As a result of the study it is found that the Reynolds number grows and the power consumption increases as the oscillation angle and rotational speed of the actuating elements increase.