[leejsmith]

Originally posted by bigben2k
I think it's in Lee's thread.
http://forums.procooling.com/vbb/sho...&threadid=6032


JD, yeah, that's it, 1/16 tubes.

From the "CPU backside cooler" thread:

is this the one you wanted ben




gulp. this is from ben i had 1.4mmID tubes with 2.5mm cups at the time.

Ok, i ran the numbers, and there is indeed a problem: the ratio of the hydraulic equivalent of the outlet area, to the tube ID, is about 2:1, which means that the coolant is indeed being sucked out.

I'd recomend either using a smaller tube, or a bigger cup. If you follow Cathar's graph (above) you'll have some good guidelines, for those dimensions/proportions.

this is the link for hydrolic calculations

http://www.lmnoeng.com/PipeDuct.htm