5 * An 11.5-in-diameter centrifugal pump, running at 1750 r/min, delivers 850 gal/min
Chapter 11, Problem p11.65(choose chapter or problem)
5 * An 11.5-in-diameter centrifugal pump, running at 1750 r/min, delivers 850 gal/min and a head of 105 ft at best efficiency (82 percent). (a) Can this pump operate efficiently when delivering water at 208C through 200 m of 10- cm-diameter smooth pipe? Neglect minor losses. (b) If your answer to (a) is negative, can the speed n be changed to operate efficiently? (c) If your answer to (b) is also negative, can the impeller diameter be changed to operate efficiently and still run at 1750 rev/min?
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