OPTIMUM DIMENSIONS FOR AN AXIAL TURBOMACHINE STAGE

Document Type : Original Article

Authors

Dr., Mechanical Power Department, Military Technical College, Kobry EL Kobba, Cairo.

Abstract

The main dimensions of an axial turbomachine stage may be estimated to have a maximum hydraulic effeciency. Design formulae are obtained by writing the momentum equation for the rotor end stator of the machine and by assuming that the head produced at any section is proportional to the radius. The only variable has to be chosen is the mean vane angle of the stator, such that the hydraulic effeciency is maximum, while the ather main dimension are calculated.