1. A Kaplan turbine has the following features: Outer diameter of the runner = 4.5 m Hub diameter of

1. A Kaplan turbine has the following features: Outer diameter of the runner = 4.5 m Hub diameter of the runner = 2.0 m Guide-vane angle = 59 Inlet-blade angle at the tip = 19 The hydraulic and overall efficiencies are 0.92 and 0.90 respectively. If the discharge through the turbine is 120 m3/s, determine (a) Speed and (b) power developed by the turbine. The discharge at the outlet can be taken as purely axial. 2.A propeller turbine has midblade diameter of 3.75 m and the length of the blades along the radius is 1.25 m. The guide-vane angle is 50 and the inlet-blade angle at the tip
1. A Kaplan turbine has the following features: Outer diameter of the runner = 4.5 m Hub diameter of the runner = 2.0 m Guide-vane angle = 59 Inlet-blade angle at the tip = 19 The hydraulic and overall efficiencies are 0.92 and 0.90 respectively. If the discharge through the turbine is 120 m3/s, determine (a) Speed and (b) power developed by the turbine. The discharge at the outlet can be taken as purely axial. 2.A propeller turbine has midblade diameter of 3.75 m and the length of the blades along the radius is 1.25 m. The guide-vane angle is 50 and the inlet-blade angle at the tip of the blades is 14. The overall and hydraulic efficiencies are 86% and 90% respectively. If the speed of the runner is 150 rpm, estimate the (a) discharge through the turbine (b) power developed, and (c) specific speed of the turbine.

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