A 70 percent efficient pump delivers water at 20°C from one reservoir to another 20 ft higher,

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A 70 percent efficient pump delivers water at 20°C from one reservoir to another 20 ft higher, as in Fig. P6.102. The piping system consists of 60 ft of galvanized iron 2-in pipe, a reentrant entrance, two screwed 90° long-radius elbows, a screwed open gate valve, and a sharp exit. What is the input power required in horsepower with and without a 6° well-designed conical expansion added to the exit? The flow rate is 0.4 ft3/s.

A 70 percent efficient pump delivers water at 20°C
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Fundamentals Of Hydraulic Engineering Systems

ISBN: 978-0136016380

4th Edition

Authors: Robert J. Houghtalen, A. Osman H. Akan, Ned H. C. Hwang

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