Q4/ Axial water turbine installed on a river barrage. Head drop between the water source level and the outlet of the turbine is (8 m). The rotor tip and hub diameters are (1.5 m) and (0.62 m) respectively. The angular velocity of the shaft is (45 rad/s) while the axial velocity through the rotor is (10 m/s). The hydraulic efficiency of the turbine is (92%). The turbine mechanical and electrical losses reduce the output power by about 5%. Assume no swirl at the outlet, draw the velocity diagrams at the inlet and the outlet in addition to calculating the blade and flow angles (B₁, B2, and 8) at the inlet and the outlet too.

Q4/ Axial water turbine installed on a river barrage. Head drop between the water source level and the outlet of the turbine is (8 m). The rotor tip and hub diameters are (1.5 m) and (0.62 m) respectively. The angular velocity of the shaft is (45 rad/s) while the axial velocity through the rotor is (10 m/s). The hydraulic efficiency of the turbine is (92%). The turbine mechanical and electrical losses reduce the output power by about 5%. Assume no swirl at the outlet, draw the velocity diagrams at the inlet and the outlet in addition to calculating the blade and flow angles (B₁, B2, and 8) at the inlet and the outlet too.

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

Q4/ Axial water turbine installed on a river barrage. Head drop between the water source level and the outlet of
the turbine is (8 m). The rotor tip and hub diameters are (1.5 m) and (0.62 m) respectively. The angular velocity
of the shaft is (45 rad/s) while the axial velocity through the rotor is (10 m/s). The hydraulic efficiency of the
turbine is (92%). The turbine mechanical and electrical losses reduce the output power by about 5%. Assume no
swirl at the outlet, draw the velocity diagrams at the inlet and the outlet in addition to calculating the blade and
flow angles (B₁, B2, and 0) at the inlet and the outlet too.

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