A pump lifts water from a level of 10m below the ground. Water is pumped at a rate of 30kg/minute with negligible velocity. Calculate the minimum horsepower the engine must have to do this.
Please help me with this question :)
Please help me with this question :)
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Work = mgh = 30(9.8)(10) = 2940 J
P = Work / time = 2940 / (60 s) = 49 W
In HP = 49 / 746 = 0.0657 hp
P = Work / time = 2940 / (60 s) = 49 W
In HP = 49 / 746 = 0.0657 hp
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The pump needs to lift m = 30kg of water a height of h = 10m in 1 min. = 60s. So the power required is
mgh/60 = 30*9.8*10/60 = 49W = 0.066hp.
mgh/60 = 30*9.8*10/60 = 49W = 0.066hp.