The_Jester

Hey,

I dont watercool but I had *another* idea. If heat sinks are a relitivly good conductors of heat and water is even better. What happens if the two merge?

I have attached my example diagram of what I mean. Basically - Its standard HS but with the fan removed and it encased in a metal box (because its easiest to weld etc). Then water it pumped into the box - moving across the fins in a parallel fashion. High pressure water systems or 'slow water rate' systems may proove better with this method than a conventional WC system. Im not sure, but at least my idea is out there

The Jester

Attached Thumbnails

 

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The_Jester

^^bump

it cant be that bad of an idea, lol

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Leprachuan

i don't see that as a bad idea but its big bulky and i seriously doubt it can compare to some of the more advanced waterblocks such as the storm G4. I know i wouldnt wont an enourmous waterblock ontop of my processor.

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The_Jester

look at the big tyhpoon - thats enourmous - what difference does it make?

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Loki

It's not a bad Idea. The only problem would be the combined weight of the original HS the extra material added to enclose the HS and the Water would be very heavy.

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The_Jester

some coolers wiegh a kilo - and its all about 15 centimetres away from the board. That'll create about 3kg's of weight including torque. The block that ive designed has almost 0 torque and so wouldnt weigh as much

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The_Jester

You've got to remember - this thing isnt going to be much taller than a stock HS

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pauldovi

Water is not that great of a thermal conductor. Only a fraction of the thermal conductivity of copper. Where water is great is in its specific heat. There is a large amount of heat required to raise the temperature of water. Also water is great in phase change (i.e. liquid to gas). When the water heat up to 99C, additional heat is added, but the temperature does not rise. This is called latent heat. There is a large amount amount of heat required to break the bonds of water and turn it into a gas. Also, there is a large amount of heat required to make the bonds again (when the gas turns back into a liquid). This is what makes water so good in the Big Typoon.

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pauldovi

Kg is not a measurement of weight or torque. The unit of weight (a.k.a force) is Newtons. The unit of Torque is Newton Meters (N.m). Don't confuse the two.

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DrDeville

My guess--not having tried it or done any analysis--is that fins in a waterblock are unecessary.

As PaulDovi pointed out, water has a high specific heat--it takes a lot of heat to raise its temperature. Air has comparatively low specific heat--it takes a lot of air to cool something.

That's why aircooling solutions maximize surface area (also known as fins) and airflow--it take a *lot* of air molecules to carry away heat with only a small temperature difference. And the smaller the temperature difference, the cooler the CPU.

Watercooling is the opposite--it takes a much smaller volume of water to carry away heat with only a small temperature differential--hence the trick is getting the CPU close to the water, not maximizing surface area. So processor-to-water heat exchangers (waterblocks) minimize the the barrier between the CPU and the water (not maximize surface area), and increase turbulance so the water mixes and cool water contacts the hot surface.

Taken to their logical extremes, the ideal aircooling solution would be a heatsink with infinite area, while the ideal watercooling solution would the the CPU immersed directly in the fluid--no heat sink at all.

So I'm thinking your solution would work just fine, but no better than a conventional waterblock.

Kudos for creativity, and giving me a chance to drone on.

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