Calculation of inlet angles in the hydrodynamic elements of a two stage active hydraulic turbine

Abstract

Experimental and theoretical studies carried out at the LMI to create a two-stage active hydraulic turbine with inclined-jet stages, the hydrodynamic scheme of which is shown in the figure, have shown that the characteristics of such turbines fully meet the objectives of turbine drives at hydraulic mines and have a number of advantages. The most important of them are the relatively low specific speed of the two-stage turbine motor, small radial size and the axial discharge of exhaust water characteristic of the motor. As shown by tests of an experimental prototype of such a turbine motor, with correctly specified design parameters, in terms of its efficiency it is not inferior to the currently used radial and bucket turbine motors.

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