The inward flow reaction turbine develops 735 kW at 750 r.p.m. under a net head of 100
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Question:
The inward flow reaction turbine develops 735 kW at 750 r.p.m. under a net head of 100 m. The guide vanes makes an angle of 15° with the tangent at inlet. The axial length of the blade at inlet is 0.1 times the outer diameter. The radial velocity of flow through the wheel is constant and the discharge from the wheel is radial. The blade thickness blocks 5 per cent of the area of
flow at the inlet. The hydraulic efficiency of the wheel is 88% and overall efficiency is 84%.
Determine :
(i) The wheel diameter,
(ii) The wheel width, and
(iii) The blade angle at the inlet.
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
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