A Francis radial-flow hydroturbine (inward) has the following dimensions: r2=2.00 m, r₁=1.30 m, b2=0.85 m, and b1=2.10 m. The runner blade angles are ß2= 66° and B1= 18.5° at the turbine inlet and outlet, respectively. The runner rotates at N=100 rpm. The volume flow rate at design conditions is 80 m³/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle a2 through which the wicket gates should turn the flow, where az is measured from the radial direction at the runner inlet. Calculate the swirl angle ai, where ai is measured from the radial direction at the runner outlet. Predict the power output (MW) and required net head (m).

A Francis radial-flow hydroturbine (inward) has the following dimensions: r2=2.00 m, r₁=1.30 m, b2=0.85 m, and b1=2.10 m. The runner blade angles are ß2= 66° and B1= 18.5° at the turbine inlet and outlet, respectively. The runner rotates at N=100 rpm. The volume flow rate at design conditions is 80 m³/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle a2 through which the wicket gates should turn the flow, where az is measured from the radial direction at the runner inlet. Calculate the swirl angle ai, where ai is measured from the radial direction at the runner outlet. Predict the power output (MW) and required net head (m).

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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Hydroelectric Energy

Hydroelectric energy is also known as hydropower or hydroelectricity. The term hydropower refers to the power obtained from water motion. By the term 'power', primarily means the generation of electricity. A hydropower plant or hydroelectric power plant utilizes the kinetic energy or pressure energy of flowing water into electrical energy. Unlike conventional energy sources used for power generation, electricity obtained from hydraulic power contributes to zero greenhouse gas emissions.

Question

A Francis radial-flow hydroturbine (inward) has the following dimensions: r2=2.00 m, r₁=1.30 m,
b2=0.85 m, and b1=2.10 m. The runner blade angles are ß2= 66° and B1= 18.5° at the turbine inlet and
outlet, respectively. The runner rotates at N=100 rpm. The volume flow rate at design conditions is
80 m³/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle a2 through
which the wicket gates should turn the flow, where az is measured from the radial direction at the
runner inlet. Calculate the swirl angle ai, where an is measured from the radial direction at the runner
outlet. Predict the power output (MW) and required net head (m).

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