an electric pump out the ground floor of a building takes 10 minutes to fill a tank of volume 30m^3 with water. If the tank is 60m above the ground and and the efficiency of the pump is 30 percent how much electric power is consumed by the pump in filling the tank? ( take g= 10m/s)
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Work done =mgh
Power (p) =w/t mgh/t
V. p.g.h/t
Power required for pumping =V.p.g.h/t x 1/n
Given
Volume =30m cube
P=1000kg/m cube
G=9.8
H=40m
Efficiency =30%
Therefore 30 x 1000 x 9.8 x 40/15 x 30 x (30/100)
11760000/270
Equals to 43555.55 watt
Power (p) =w/t mgh/t
V. p.g.h/t
Power required for pumping =V.p.g.h/t x 1/n
Given
Volume =30m cube
P=1000kg/m cube
G=9.8
H=40m
Efficiency =30%
Therefore 30 x 1000 x 9.8 x 40/15 x 30 x (30/100)
11760000/270
Equals to 43555.55 watt
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