Hi all,
I think this is a rather dumb question but I just could not find sufficient resources (information and time) to satisfy myself properly.
In the case of fixed speed centrifugal pumps, does the electric power consumption at the motor end change based on discharge flow at the pump?
My own thinking is that for a fix speed pump, the motor power and thus shaft power delivered to the fluid is fixed. Thus, for a given fixed speed pump, having a lower flow rate will result in greater head and thus total hydraulic power delivered to the fluid is conserved. i.e. for fixed speed pumps, the motor power consumption remains constant regardless of the actual fluid flow.
Is the idea above correct?
Once again, sorry for asking such a noob question here and thanks in advance for the advice!