OK, that makes sense. However if you assume a heat exchanger where the pressure drop is less than that of the tubing (such as that BECooling fin and tube radiator), the flow rates would be very different. But you're right, even in that case, the difference in flow wouldn't be great enough to change the WB performance by more than .03°C/W.
Err, just noticed: Did you mean Eheim 1048, because the 1046 deadheads at 1.2 mH2O? (
http://forums.procooling.com/vbb/att...=&postid=44918)
Let me understand your PD estimation:
1. "Ballpark" final flow rate for given pump
2. Calculate PD for every component at "ballparked" flow
3. Add PD for all components
4. Match PD against PQ curve of pump to get final flow rate
Is this right?
So, let me create a new case, one with a much smaller pump:
Sicce Micra modded to run inline
Tube-and-fin radiator, such as the BECooling 5x5 ( tested by Bill here:
http://overclockers.com/articles481/index04.asp ).
PQ curve of the Micra:
PD graph of the BECooling 5x5:
PD graph of the WW:
Bill's 462-B,
edit: Removed calculation, so no one else has to muddle through the mis-conversions. See Cathar's post below.