quite a few items that need clarification before this could progress:
what temp is the "chilled system" coolant actually at ?
what is the coolant ?
what is the actual flowrate ?
knowing none of these, we are just kinda knocking the idea around
I see chilled water systems as being of 2 types:
coolant above the dew point temp, and
coolant below the dew point
I'm thinking here we are referring to the latter, but still above freezing ?
(no real idea to what others were referring as was not explicitly stated)
my testing as I said did not go below 5°C
in the case of the WW, my speculation would be that there would be a greater stagnation area due to the increased viscosity
obviously such applies to all wbs, but again my speculation is that the closely spaced fins will exacerbate the effect
Les, thanks - let me digest
EDIT: jd
its comments like the one you quoted that make me want to write
really technically rigorious articles
then the chuckle heads would not even bother to read them