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Old December 7, 2010, 01:59 PM
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SugarJ SugarJ is offline
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Join Date: Jan 2008
Location: Langley, BC
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To elaborate a bit, the idea behind the pin matrix is to maximize the surface area in contact with your fluid, so as to maximize the heat transferred from the block. The grooved type seem to rely more on high-pressure build up, which increases the flow rate at which the fluid crosses the surface.

If I were making one myself, I'd make a staggered array of pins, with as many pins as possible as tall as possible (to force the fluid to go through the pin matrix, rather that just flow over the top).
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