Quote:
Originally posted by bigben2k
My vote's for the swifty, but only by the narrowest of margins. The Maze3 has fat corners, the swifty doesn't. In other words, the Maze is better designed for a CPU than a Pelt (ever so slightly though).
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My assessment differs.
The "fat corners" are are outside the 50 x50mm Peltier area and possibly irrelevant. .
Unfortunately there is no reliable data for cooling a 50x50mm heat source.(Billa's work is for a 10x10mm source) so predictions depend on the heat-spreading versus convection arguments..
Cooling a 50x50mm Peltier possibly requires zero heat-spreading by the baseplate..Definitely considerably less than a 10x10mm (ish) CPU.
Exclusion of spreading resistance allows much simpler calculations .For example reduction of thickness of a 50x50mm from 8mm to 3mm will reduce the oveall block resistance by 0.005c/w or 1.5c for a Peltier producing 300w.The thinner base(2-3mm)* of the Maze3 may offer this improvement the thicker(8mm) Swiftech.
The convection situation is possibly the question of the Switech's ability to "carry its direct impingement flow instabilility through to the perimeter of the block"verus the Maze3's "channel size determined flow charactaristics ". If the turbulence at the perimeter of the Swiftech decreased to that characteristic of the channel dimensions (10x50mm ?) then the flow could even become laminar.(giving 1/10th the convection coeff) below ~ 1gpm.
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http://forum.oc-forums.com/vb/showth...ighlight=maze3