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
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
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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
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