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Unread 02-03-2004, 04:20 PM   #32
UberBlue
Cooling Neophyte
 
Join Date: Jul 2003
Location: WA
Posts: 95
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Quote:
Originally Posted by unregistered

NPSH = net positive suction head -> google
most quiet sitting on its tail (flat backside, inlet facing up)
I'll take a stab at it.

Quote:
Total Head: The difference between the pressure head at the discharge and suction flange of the pump ( syn Total Dynamic Head. pump head, system head).
With that deffinition, it would seem to me that dumping the output of a pump directly to the input of another pump would alter the suction conditions, therefore altering the total head which would affect flow rate.

Intuitivley, I think, an amount of total head equal to the suction head of one pump is gonna come up missing.


Or:

With the pump on its back with the inlet facing up would definately alter suction conditions.

Does any of this really apply to a closed loop?
*puts on NOMEX suit*
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