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Heat Sink Theory

post #1 of 57
Thread Starter 
I'm no expert, though I wish I was, or at least I could speak to one......

Anyways...

I've been looking at different heat sinks, anywhere I see one (i.e. on things other than computers)....

I'm of the opinion that heat sinks are generally finned because of a size constraint (i.e. commercial application)..

However, given the following constraints/considerations, what is the most efficient heat sink design/formation (that man is aware of)?

Copper construction

Limited amount of metal (i.e. 5 lb of copper)

Stationary design (as in, not moving or any huge risk of being blown over)

Passive (no fan involved)

Must support itself under the force of gravity (doesn't need any structural support, other than the primary metal itself)

No budget constraint (i.e. doesn't have to be built in a commercially efficient manner and/or on a assembly line)

No size constraint (i.e. MAKE AS MUCH OF THE 5 lbs OF COPPER COME IN CONTACT WITH THE ROOM'S AIR)

Must be heat sinking a single central heat source (i.e. my horizontally mounted CPU)


My only conclusion is one that is nature-inspired... and that is:

A copper tree with a square footprint (proportional to the size of the CPU's chassis)

Think fractal tree...

Can anyone help me disprove this?

Thanks....

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post #2 of 57
i would think you would use a lot of your copper making your base....... it makes sense to a degree, but at this point, you have to have a lot of heat travel up the "trunk" and through the branches to become dissipated, maybe if you had a bunch of tiny trees, but at that point, you may as well go back to a lot of fins, maybe fanned out so more air can get through them.

just imo
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post #3 of 57
Thread Starter 
Quote:
Originally Posted by ae804 View Post
i would think you would use a lot of your copper making your base....... it makes sense to a degree, but at this point, you have to have a lot of heat travel up the "trunk" and through the branches to become dissipated, maybe if you had a bunch of tiny trees, but at that point, you may as well go back to a lot of fins, maybe fanned out so more air can get through them.

just imo

Sounds valid to me... hmmm....
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post #4 of 57
That is an interesting idea...

I'm sure if someone made a tree-type HS with a flat head and a fan mounted on top of it, it would perform very well. However, I think it's too far from the norm to really be considered for most companies. I personally thought Swiftech was gonna have trouble when they came out with the MCX series HS's (http://www.newegg.com/Product/Produc...2E16835108062), even though they seemed well-deigned and looked to offer decent performance.

You provide something to think about though
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post #5 of 57
Thread Starter 
Quote:
Originally Posted by kidwolf909 View Post
That is an interesting idea...

I'm sure if someone made a tree-type HS with a flat head and a fan mounted on top of it, it would perform very well. However, I think it's too far from the norm to really be considered for most companies. I personally thought Swiftech was gonna have trouble when they came out with the MCX series HS's (http://www.newegg.com/Product/Produc...2E16835108062), even though they seemed well-deigned and looked to offer decent performance.

You provide something to think about though
WOW! Those are cool! And thanks for the comment...

I was thinking of making almost an art project out of it... I mean how many unused scraps of copper wire could one find if they really tried? And the tree could just continue to grow over the years... It'd be called CPU Banzai or something .lol
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post #6 of 57
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post #7 of 57
Hey take a look at this, it's basically the tree design...Spode's Abode - The Twist Waterblock
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post #8 of 57
Thats a good design, but you would have soo much mass in the base of the tree design that it would weigh a ton! And i feel that for the size of it, a pinned block would do better. A simple block such as one off of a vga card seems to be optimal. It has maximum airflow over all of the fins, unlike the tree design where there will be "dead spots" of air flow du to some fins blocking the inner ones.

And another thing... just how in the hell would to manufacture that tree desighn without it costing a fortune!?
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post #9 of 57
Thread Starter 
Quote:
Originally Posted by ira-k View Post
Hey take a look at this, it's basically the tree design...Spode's Abode - The Twist Waterblock
Sweet
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post #10 of 57
Thread Starter 
Quote:
Originally Posted by pbasil1 View Post
Thats a good design, but you would have soo much mass in the base of the tree design that it would weigh a ton! And i feel that for the size of it, a pinned block would do better. A simple block such as one off of a vga card seems to be optimal. It has maximum airflow over all of the fins, unlike the tree design where there will be "dead spots" of air flow du to some fins blocking the inner ones.

And another thing... just how in the hell would to manufacture that tree desighn without it costing a fortune!?
I'm not sure that I understand what design you are referring to by "pinned block"... but You are right, there would be blockage and it would be expensive to create....

Of course, you referred to maximum air flow... and this heat sink's function would be passive and omni-radiance... Not directional wind cooling... Hmmm...

However, they are good points, indeed

Thanks for your help
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