Question: Take the 96.5-cm pump in the figure as a starting point. The pump must pump 75 m3/min of water with density=1000kg/m3. The pump runs at
Take the 96.5-cm pump in the figure as a starting point. The pump must pump 75 m3/min of water with density=1000kg/m3. The pump runs at 710 rpm.
for this condition and given the chart under: show detailed calculation/find:
a) net height
b) break horsepower (bhp)
c) efficiency
d) NPSHneeded
Net head, m 120 105 90 75 60 30 n = 710rpm 0 105-cm dia.. 96.5-cm dia. 89-cm dia. %097 Curves based on clear water with 45 specific gravity of 1.0 15 72% 30 80% 45 84% 86% 60 88% 75 m/min NPSH 90 88% 1000 hp 86% 84% 1500 hp 1250 hp * 105 7.5 6.0 4.5 3.0 NPSH, m
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Solution Step 1 mmin 0 15 30 45 60 90 75mmin 105 30 45 specific gr... View full answer
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