Układ wylotowy typu osiowego dyfuzora łopatkowego sprężarki promieniowej

Abstract

A bs t r a c tThe vaned axial diffuser is the exhaust system of the centrifugal or axial-centrifugal compressor flow channel where the change of flow direction takes place from radial direction to the direction 142 S. Antas defined by the axis of the combustion chamber. The paper presents a method for determining flow parameters at the outlet section downstream duct of a radial or axial-radial compressor. The analysis includes the exhaust system in the form of vaned axial diffuser type (straightening vanes, de-swirl cascade). The suitable method of determining geometrical parameters for this exhaust diffuser is also presented there. The mentioned method (for conceptual design of compressor) is based on the equation of energy conservation, equation of continuity, first and second law of thermodynamics, Euler's moment of momentum equation, gas dynamics functions and definitions used in the theory of turbo-machines. The final part of the article includes principles for selection of computational value pressure ratio for the compressor with radial vaned diffuser and conclusions.