engineering recuitment GATE ME 2023-24 Test Series Power Engineering Air and Gas Compressors Axial Flow Compressors
The speed of the axial flow compressor is 15000 RPM and the mean diameter is 0.6 m. The axial flow velocity is constant and is 225 m/s. The whirl velocity at inlet is 85 m/s. The work done is 45 kJ/kg in a stage. The inlet conditions are 1 bar and 300K. Assuming isentropic efficiency of 89%,
1
The fluid deflection angle = 7.52°
2
The fluid deflection angle = 8.16°
3
The degree of reaction = 0.717
4
The degree of reaction = 0.5