A penstock 1 min diameter and 10 km long carries water at I 0C from a reservoir to an

Chapter 14, Problem 14.48

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A penstock 1 min diameter and 10 km long carries water at I 0C from a reservoir to an impulse turbine. if the turbine is 85% efficient, what power can be produced by the system if the upstream reservoir elevation is 650 m above the turbine jet and the jet diameter is 16.0 em? Assume that J = 0.016 and neglect head losses in the nozzle. What should the diameter of the turbine wheel be if it is to have an angular speed of 360 rpm? Assume ideal conditions for the bucket design [ Vbucket = (1/2)\lj].

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