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2. A single-stage radial flow air compressor runs at 300 rev/s. The vanes, which

ID: 1819271 • Letter: 2

Question

2. A single-stage radial flow air compressor runs at 300 rev/s. The vanes, which are radial, have an external diameter of 0.48 m. The air enters the impeller at a stagnation pressure of 103,500 kPa and a stagnation temperature of 288 K, and the isentropic efficiency of impeller and diffuser combined is 0.81. If the power input factor is 1.04 and the whirl slip factor 0.96, determine (a) the work done by the impeller per kg of air, neglecting whirl at inlet, and (b) the stagnation pressure and temperature of air leaving the diffuser.
Take cp = 1005 J/kg.K, k = 1.4, R = 287 J/kg.K.

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some thing is missing here please repost it

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