Question

A centrifugal compressor has a total pressure ratio of 4:1 with an isentropic efficiency of 80% when running at 15000 rpm and inducing air at 293 k. Guide vanes at inlet give the air a prewhirl of 250 to the axial direction at all radii and the mean diameter of the eye is 250 mm; the absolute air velocity at inlet is 150 m/s. At exit blades are radially inclined and the impeller tip diameter is 590 mm. Calculate the slip factor of the compressor.'

Answer 1

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