At what speed, when pumping water, should the 105 cm pump of the figure below run to realize, at highest efficiency, (a) a head of 30 m? For this condition, what are the resulting (b) flow rate, and (c) brake horsepower? 1710 t/min 120 NPSH 7.5 6.0 105 105-cm dia. 4.5 3.0 90 96.5-cm dia. 75 89-cm dia. 86% 84% 45 1000 bhp 30 75 90 105 Total head, m NPSH, m 1500 bhp 1250 bhp
At what speed, when pumping water, should the 105 cm pump of the figure below run to realize, at highest efficiency, (a) a head of 30 m? For this condition, what are the resulting (b) flow rate, and (c) brake horsepower? 1710 t/min 120 NPSH 7.5 6.0 105 105-cm dia. 4.5 3.0 90 96.5-cm dia. 75 89-cm dia. 86% 84% 45 1000 bhp 30 75 90 105 Total head, m NPSH, m 1500 bhp 1250 bhp
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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