A centrifugal pump operating at (N=2265 mathrm{rpm}) lifts water between two reservoirs connected by (300 mathrm{ft}) of

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A centrifugal pump operating at \(N=2265 \mathrm{rpm}\) lifts water between two reservoirs connected by \(300 \mathrm{ft}\) of 6 -in.-diameter and \(100 \mathrm{ft}\) of 3-in.-diameter cast-iron pipe in series. The gravity lift is \(25 \mathrm{ft}\). Estimate the head requirement, power needed, and hourly cost of electrical energy to pump water at \(200 \mathrm{gpm}\) to the higher reservoir. Assume that electricity costs \(12 \phi / \mathrm{kW} \cdot \mathrm{hr}\) and that the electric motor efficiency is 85 percent.

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Fox And McDonald's Introduction To Fluid Mechanics

ISBN: 9781118912652

9th Edition

Authors: Philip J. Pritchard, John W. Mitchell

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