A Francis radial-flow hydroturbine (inward) has the following dimensions: r2=2.8 m, ri=1.02 m, b2=0.85 m, and bi=2.10 m. The runner blade angles are B2= 66° and B1= 18.5° at the turbine inlet and outlet, respectively. The runner rotates at N=240 rpm. The volume flow rate at design conditions is 84 m2/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle az 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 a1, 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=2.8 m, ri=1.02 m, b2=0.85 m, and bi=2.10 m. The runner blade angles are B2= 66° and B1= 18.5° at the turbine inlet and outlet, respectively. The runner rotates at N=240 rpm. The volume flow rate at design conditions is 84 m2/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle az 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 a1, where ai is measured from the radial direction at the runner outlet. Predict the power output (MW) and required net head (m).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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