Pump characteristic curves
Pump characteristic curves
(OP)
Question: Has anybody ever seen centrifugal pump characteristic curve plots (on cartesian coordinates) with head on the ordinate vs. the square of the flow rate on the abscissa to show a "straight" contour ?
Could you comment on the advantage of such, especially when referring to large pumps with different speeds of rotation ?
How would these coordinates affect HP, NPSH and efficiency plots ?





RE: Pump characteristic curves
http://virtualpipeline.spaces.msn.com
RE: Pump characteristic curves
It very unusual.
Performance curves, Q-H and TDH system curves has predominant cuadratic behavior.
Also NPSHr and NPSHa.
Power Rating is cubic.
I think is better to see curves without any particular modification.
Por example if you have a Q-H for Mixted Flow Impeller
(Specific Speed 5000 to 6000), you should appreciate
if this pumps has inconsistent problem at rated point.