Design a single stage centrifugal compressor which will handle 2.2 lb/s o fair a

Question

Design a single stage centrifugal compressor which will handle 2.2 lb/s o fair at a pressure ratio of 4.2:1. Use 33 radial blades with an appropriate inducer. Assume that nc=0.70. The machine is to operate at 60,000 rpm and to supply air to the combustion chamber of a turbojet engine. The basic design parameters required are the following: a) hub diameter b) shroud diameter at impeller inlet c) shroud diameter at impeller exit d) impeller inlet vane angle e) vane width at impeller exit f) velocity triangle at impeller inlet (shroud diameter) g) velocity triangle at impeller exit

Explanation / Answer

a) hub diameter

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