pumps and pump calculation

Question 1

What is a pump

Answer 1

a mechanical device designed to impart energy to a fluid

Question 2

Formula for water power

Answer 2

W = 100 X L X P / 60
W is water power Watts
L is litres per min
P is pressure bar

Question 3

What is Water Power

Answer 3

the ability of a pump to do work

Question 4

Some energy of a pump is lost, for example as heat,

Answer 4

therefore not totally efficient

Question 5

Efficiency of any machine is defined as and give formula

Answer 5

useful power delivered by machine / power needed to drive machine

WP X 100 ( gives a % )
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BP
both measured in watts or kilowatts