A Francis water turbine has a runner of 1m outer diameter. It rotates at a speed of 160 rpm, flow velocity is 2.8 m/s and the supply head is 10 m. The flow is radial at exit. The turbine efficiency is 89%. Find the guide vanes angle (a₁) and the vanes angle at inlet (B₁).

A Francis water turbine has a runner of 1m outer diameter. It rotates at a speed of 160 rpm, flow velocity is 2.8 m/s and the supply head is 10 m. The flow is radial at exit. The turbine efficiency is 89%. Find the guide vanes angle (a₁) and the vanes angle at inlet (B₁).

Refrigeration and Air Conditioning Technology (MindTap Course List)

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Chapter40: Typical Operating Conditions

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

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A Francis water turbine has a runner of 1m outer diameter. It rotates at a speed of 160
rpm, flow velocity is 2.8 m/s and the supply head is 10 m. The flow is radial at exit. The
turbine efficiency is 89%. Find the guide vanes angle (a₁) and the vanes angle at inlet (B₁).

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