The nozzle angle for an axial flow impulse turbine is 15°. The inlet absolute velocity is 800 ft./s and the blade speed is 550 ft./s. Axial speed at the inlet and outlet is assumed to be a constant....

The nozzle angle for an axial flow impulse turbine is 15°. The inlet absolute
velocity is 800 ft./s and the blade speed is 550 ft./s. Axial speed at the inlet and
outlet is assumed to be a constant. Calculate (a) energy transfer E, (b) change in
total (stagnation) and static enthalpies, (c) utilization factor.
Ans: E=∆h0=245,038 ft-lbf/slug; ∆h=0; ε=0.77