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Butcher · 01-24-2005, 12:05 AM

You do remember right - flow is propoertional to the crossectional area of the tube, which is propoertional to the square of the radius (or diameter).
1/2" tubing has 16/9 times more flow than 3/8" tubing. So 2 3/8" tubes is similar to 1 1/2" - additional losses due to friction with the walls of the 3/8" tubes offset the increase diameter.

Also, why run 5 screaming loud 80mm fans, when a couple of good 120mm will push the same air for less cost and less noise?

Have to say I agree with bill - you need to listen and think more, rather than just leaping in and getting burnt.

01-24-2005, 12:05 AM	#19
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	You do remember right - flow is propoertional to the crossectional area of the tube, which is propoertional to the square of the radius (or diameter). 1/2" tubing has 16/9 times more flow than 3/8" tubing. So 2 3/8" tubes is similar to 1 1/2" - additional losses due to friction with the walls of the 3/8" tubes offset the increase diameter. Also, why run 5 screaming loud 80mm fans, when a couple of good 120mm will push the same air for less cost and less noise? Have to say I agree with bill - you need to listen and think more, rather than just leaping in and getting burnt. __________________ Once upon a time, in a land far far away...