Correct Answer - Option 1 : proportional to density of fluid
Hydraulic power:
It is expressed as,
Ph = Q × H × ρ × g
Where Q is the flow in m3/s
H is the total head in m
ρ is the density of the fluid in kg/m3
g is the acceleration due to gravity in m/s2
Therefore, the hydraulic power is proportional to density of fluid.
Important Points:
Pump shaft power:
Ps = Hydraulic power, Ph/ pump efficiency, η
Electrical input power:
Pump shaft power P
s / η
motor
