The 38-inch pump in Fig. 11.7b is used in series to lift 20C water 3000 ft through

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The 38-inch pump in Fig. 11.7b is used in series to lift 20°C water 3000 ft through 4000-ft of 18-inch-diameter cast iron pipe. For most efficient operation, how many pumps in series are needed if the rotation speed is
(a) 710 rpm; and
(b) 1200 rpm?
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System Dynamics

ISBN: 978-0073398068

3rd edition

Authors: William Palm III

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