9.18 The high pressure stage of an axial turbine has the following data:degree of reaction = 50 per cent,exit air angle of the fixed blade ring = 70°mean diameter of the stage = 1mrotational speed = 3000 rpmpower developed = 5 MW(a) blade to gas speed ratio,(b) Utilization factor (c) flow coefficient,(d) inlet and exit air angles for the rotor, and(e) mass flow rate of the gas.Assume maximum utilization factor.(Ans.) (a) o=0.9396(c) p = 0.3639(e) m =202.64 kg/s.Determine(b) ε = 0.9377(d) B₂ = 0, B3 = 70°,

Given Degree of reaction = 50% Exit air angle = 70o Mean diameter = 1m Rotation = 3000 rpm Power = 5…

9.18 The high pressure stage of an axial turbine has the following data: degree of reaction = 50 per cent, exit air angle of the fixed blade ring = 70° mean diameter of the stage = 1m rotational speed = 3000 rpm power developed = 5 MW

9.18 The high pressure stage of an axial turbine has the following data: degree of reaction = 50 per cent, exit air angle of the fixed blade ring = 70° mean diameter of the stage = 1m rotational speed = 3000 rpm power developed = 5 MW

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

9.18 The high pressure stage of an axial turbine has the following data:
degree of reaction = 50 per cent,
exit air angle of the fixed blade ring = 70°
mean diameter of the stage = 1m
rotational speed = 3000 rpm
power developed = 5 MW
(a) blade to gas speed ratio,
(b) Utilization factor (c) flow coefficient,
(d) inlet and exit air angles for the rotor, and
(e) mass flow rate of the gas.
Assume maximum utilization factor.
(Ans.) (a) o=0.9396
(c) p = 0.3639
(e) m =
202.64 kg/s.
Determine
(b) ε = 0.9377
(d) B₂ = 0, B3 = 70°,

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