Question

A pump is needed to lift water through a height of 2.5m at the rate of 500g/min. what must the minimum horse power of the pump be??plz solve this question

Answer 1

Mass rate = 500 g/min = 8.33 g/sec

Height to which the water need to be raised = 2.5 m

Acceleration due to gravity = 9.8 m/s^2

Power = mass rate × gravity × height

$Power = 8.33 \times 10^-^3 \times 9.8 \times 2.5$

$Power = 0.204$ W

In horse power:

Power = 0.000273 hp

Hence, the power needed to lift the water is : Power = 0.000273 hp