Answer to Question #304418 in Engineering for BALAJI A

Question

An axial compressor stage has a mean diameter of 70cm and run at 14000 rpm. If the actual temperature rise and pressure ratio developed are 30°C and 1.4 respectively, determine

(i) the power required to drive the compressor while delivering 57 kg/s of air, assume mechanical efficiency of 86% and an initial temperature of 35°C. (6)

(ii) the stage load coefficient (3)

(iii) the stage efficiency and (3)

(iv) the degree of reaction if the temperature at the rotor exit is 55°C