yes indeed the system is water pumping system to feed a big city. not all the 9 pumps are running in the same time since we have some restrictions in flow capacity of the treatment plant.
will plot the curves once back to my office (don't have them here :) ).
Many thanks friends for your help.
In my case I have 9 pumps in parallel 03 of them are 5000 m3/h six are 12500 m3/h. ir order to modulate the flow rate, i need to operate sometimes small pump with big one..what are the consequences to expect from this?
many thanks again dear friend
Dear LittleInch,
Thank you very much for this answer. What I want exactly is to estimate a general efficiency of the two pumps in parallel. I don't have curve here, I will plot them ASAP to further explain the problem.
Thanks a lot
Hi Friends
Please how to draw the efficiency curve of different pumps in parallel having the efficiency curve of each one.
I m not hydraulic engineer may be the question is simple, but excuse..
Thank you very very much in advance.
