pumps and pump calculation Flashcards
1
Q
What is a pump
A
a mechanical device designed to impart energy to a fluid
2
Q
Formula for water power
A
W = 100 X L X P / 60
W is water power Watts
L is litres per min
P is pressure bar
3
Q
What is Water Power
A
the ability of a pump to do work
4
Q
Some energy of a pump is lost, for example as heat,
A
therefore not totally efficient
5
Q
Efficiency of any machine is defined as and give formula
A
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
