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In: Mechanical Engineering

Beer is to be pumped from a fermenting vessel to a racking tank at a velocity...

Beer is to be pumped from a fermenting vessel to a racking tank at a velocity of 1.5 m/s through a 100 mm ID pipe, having an absolute roughness of 0.05 mm. The total length of the pipe, allowed for fitting and valves is equivalent to 10 m on the suction side of the pump and 60 m on the delivery. The pump is situated at 3 m below the constant level of beer in the fermenting vessel, which is at atmospheric pressure. Beer is discharged at the level 15 m above the pump in the racking tank. The pressure at the delivery point is 200kPa. The pump efficiency is 60%.

Make appropriate assumption and calculate the total head to be developed by the pump, its size and its required NPSH.

Given: beer viscosity = 0.001 Pa.s, beer density = 1.010 kg/l, vapour pressure = 2.3 kPa

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samet mamat answered 2 years ago
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