Cooling tower pumps

[RamiA]

I am trying to calculate NPSHA on cooling tower pumps we have on-site to check if they meet the mfg NPSHR and I was wondering if I should treat it as an open tank and add atmospheric head on it.

 

[JJPellin]

Yes.

Johnny Pellin

 

[bimr]

The cooling tower basin is not any different than any other water tank. Add the atmospheric head on to the level of the cooling tower basin.