Thanks for that info. The content from 1977 version appears to be consistent with verbiage in the 1998 version, which is as far back as I could find. I will have to assume the limits identified in Section 102.2.4 haven't changed since 1974 and ask the client to prove otherwise.
If one has a performance curve for the pump, and you know where on that curve the pump normally operates, then one can calculate the BHP to determine if the hydraulic horsepower is less than or equal to the motor horsepower.
In English units: BHP = [head(FT) x flow(GPM) x SG] / [3960 x eff.]...
A client has asked me to do some hydraulics calculations on a power plant built in 1974. Client tells me that maximum allowable surge pressure is 120% of maximum allowable operating pressure (MAOP) per the 1974 edition of ANSI B31.1, which governed the design at the time. However, I can't find a...
dianad . . . you mentioned earlier:
My concern is about valves, strainers, etc and the distance between the 2 pumps...
Hmmm . . . my concern would be:
Occurrence of a potential surge problem if the downstream pump trips and the upstream pump remains in operation. Typically what could happen is...
In response to 'dianad'. . . there are several pump issues to consider. Is the original pump a vertical turbine pump? If so, can more stages be added to achieve the desired head rise? Does the pumped fluid have a high viscosity such that the viscous fluid correction to pump performance lowers...
