A Francis turbine working under a head of 35 m has a wheel diameter of 1 m at the entrance and 0.5 m at exit. The vane angle at the entrance is 90° and guide blade angle is 20°. The water at exit leaves the vane without shock. Velocity of flow in the runner is constant. Determine the speed of wheel in revolutions per second and vane angle at exit. Neglect any type of losses.

A Francis turbine working under a head of 35 m has a wheel diameter of 1 m at the entrance and 0.5 m at exit. The vane angle at the entrance is 90° and guide blade angle is 20°. The water at exit leaves the vane without shock. Velocity of flow in the runner is constant. Determine the speed of wheel in revolutions per second and vane angle at exit. Neglect any type of losses.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

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A Francis turbine working
under a head of 35 m has a
wheel diameter of 1 m at
the entrance and 0.5 m at
exit. The vane angle at the
entrance is 90° and guide
blade angle is 20°. The
water at exit leaves the
vane without shock.
Velocity of flow in the
runner is constant.
Determine the speed of
wheel in revolutions per
second and vane angle at
exit. Neglect any type of
losses.

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