EFFECT OF FLOW COEFFICIENT AND LOADING COEFFICIENT ON THE RADIAL INFLOW TURBINE IMPELLER GEOMETRY

Abstract

Before attempting to the design of radial inflow turbine, some of the techniques used to describe and present the effect of coefficient on geometry, need to be appreciated. The user of turbine will generally require parameters which readily describe the overall dimension of the machine so that assessments and comparisons can be easily made. The designer requires parameters which will enable him to select the correct machine and make valid comparisons between competing designs. This allows the designer to compute more easily the dimension of the machine at different coefficient, to assess the performance of a range of geometrically similar machines. A paper describes the basic design parameters and effect of coefficient on radial inflow turbine impeller geometry for 25kW application.