pump operating in parallel
pump operating in parallel
(OP)
I am calculating a H-Q problem. I've calculated the performance curve for a single pump and graphed the solution for varing flow rates. Now, I'm struggling with calculating a pump curve for two pumps operating in parallel. I know to use the pump curve for the single pump and by doubleing the flow rate for each value of TDH should give me the pump curve for the combined pumps. I know it's simple, but I've created a brain lock for myself. Can anyone assist with this simple solution. Thanks in advance.





RE: pump operating in parallel
I think you can read spanish , if so, I have an article that splain it how to deal with it.
Please contact me at
k281969@hotmail.com
Pardal
RE: pump operating in parallel
When you get that done, continue the capacity column downwards until you get to about twice the pump's single curve capacity. For example, if your pump runs out on the right side at 500 gpm @235' TDH, (sorry for the USCS units, but I went to engine school in Oklahoma...
OK, that's the easy part. The hard part is plotting your system curve on the pump curve so you can determine your actual operating point when both pumps go on-line. You DO have a system curve, right?
Hope this helps!
Thanks!
Pete
pjchandl@prou.com
RE: pump operating in parallel
Do it in a spread sheet
Best Regards
Morten