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Water Level in Tank.. please help?
What is the level after 30 mins of the water if the pump capcity is 750 gpm @ 9 bar and the water inlet supply to the tank is 50 mm with 5 bar pressure. (tank dimension is 10mx3.6mx3.4m(Lxwxh).
1 Answer
- rainwaterLv 69 years agoFavorite Answer
By virtue of the Continuity Equation, which says that mass flowrate in is equal to mass flowrate out, then I believe the Bernoulli's Equation & all the other parameters you mentioned are out of the question already. What matters now is the flowrate, the time consumed (30 mins.) and the dimensions of the tank.
I assume the 750 gpm is US gallons.
750 gpm = 2,839.06 liters/min = 2.84 m^3/min
Vol. of water in the tank(after 30 min.) = (2.84 m^3/min)(30 min.) = 85.17 m^3
V = L x W x H
85.17 m^3 = 10m x 3.6m x H
therefore,
H = 2.37 meters (water level in the tank after 30 mins.)
Source(s): Sorry but actually, I'm in no mood to check the densities of liquid water @9bar & 5bar in the Steam Table to get the precise volumetric flowrate @ the inlet of the tank. I just really find it a little too cumbersome. My calculation above is on the presumption that the change in density of water is negligible @ the pump inlet & tank inlet.
