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Question: 543 the data for an axial turbine stage are hub...

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5.43. The data for an axial turbine stage are: hub diameter 450 mm, tip diameter 750 mm, rolor speed α2 600 rpm. At the mean section, α.-β,-750, β .- 0. R-# 0.5. Assuming radial equlibrium and constant nozzle angle. detcrmine for the hub, mcan and tip sections (a) the absolute and relative air ngles (h) blade-to-gas speed ratio (c) degree of reaction. Assume axial exit from the stage at all scctions. [Ans: α1.ht-75° βι,h: 57.87 β2.h β2.m β2., 65°. 75°, 80. i 3°, -a 0.966, 0.5 1.487, 0.675- α1,1-75° β1,1 ー63.58 = =

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