The system presented on Figure 1 pumps water from the left reservoir to ensure a water in the elevated basin stays level. Knowing that the offset from water-surface to water-surface 7.5m and the water temperature is 5oC, you must: a) Determine the out-flow from the basin's orifice; b) Determine the efficiency of the pump (n) feeding the basin if the pump's absorbed power is 2550W; Consider that hs=0 c) Determine how long it will take for the basin to fully empty if the pump ceases to function. Lconduit 20m; Chw-130; D=0.15m 1m h Dorifice =0.075m; h=1.2m: Dimension of the rectangular basin: 3m x 2m *The orifice coefficient can be presumed to be 0.9
The system presented on Figure 1 pumps water from the left reservoir to ensure a water in the elevated basin stays level. Knowing that the offset from water-surface to water-surface 7.5m and the water temperature is 5oC, you must: a) Determine the out-flow from the basin's orifice; b) Determine the efficiency of the pump (n) feeding the basin if the pump's absorbed power is 2550W; Consider that hs=0 c) Determine how long it will take for the basin to fully empty if the pump ceases to function. Lconduit 20m; Chw-130; D=0.15m 1m h Dorifice =0.075m; h=1.2m: Dimension of the rectangular basin: 3m x 2m *The orifice coefficient can be presumed to be 0.9
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The system presented on Figure 1 pumps water from the left reservoir to ensure a water in the elevated
basin stays level. Knowing that the offset from water-surface to water-surface 7.5m and the water
temperature is 5oC, you must:
a) Determine the out-flow from the basin's orifice;
b) Determine the efficiency of the pump (n) feeding the basin if the pump's absorbed power is 2550W;
Consider that hs=0
c) Determine how long it will take for the basin to fully empty if the pump ceases to function.
Lconduit 20m; Chw-130; D=0.15m
1m
h
Dorifice =0.075m; h=1.2m;
Dimension of the rectangular basin: 3m x 2m
*The orifice coefficient can be presumed to be 0.9
Figure 1
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