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 Post subject: what are the advantages of passive cooling?
PostPosted: Mon Apr 09, 2012 2:39 pm 
8086
8086

Joined: Thu Jul 15, 2010 10:44 pm
Posts: 80
I am looking to do a project and I am wondering, what are the advantages and disadvantages of using a passive liquid cooling setup vs a forced air setup. Is it worth the time?

http://www.frozencpu.com/products/13795/ex-rad-271/Alphacool_Cape_Cora_HF_142_Konvekt_Black_Expansion_Module.html?tl=g30c95s1511


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 Post subject: Re: what are the advantages of passive cooling?
PostPosted: Mon Apr 09, 2012 3:22 pm 
Smithfield
Smithfield

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 5304
The only advantage is no noise. At least, from fans. You still have to use a pump to make sure the liquid circulates through the system. The pump can still generate noise.

But even a little bit of air can dramatically increase the cooling capacity of something.


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 Post subject: Re: what are the advantages of passive cooling?
PostPosted: Mon Apr 09, 2012 4:53 pm 
8086
8086

Joined: Thu Jul 15, 2010 10:44 pm
Posts: 80
If I had a setup that measures to say 19X9 inch setup, how would that compare to something of a 120X3 raditator forced air setup?


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 Post subject: Re: what are the advantages of passive cooling?
PostPosted: Mon Apr 09, 2012 7:02 pm 
8086
8086

Joined: Thu Jul 15, 2010 10:44 pm
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what do you mean a bit of air? are talking about a higher cfm fan or placing the passive rad. close to a open window?


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 Post subject: Re: what are the advantages of passive cooling?
PostPosted: Tue Apr 10, 2012 8:15 am 
Smithfield
Smithfield

Joined: Sun Jun 18, 2006 7:37 pm
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metalglasses wrote:
what do you mean a bit of air? are talking about a higher cfm fan or placing the passive rad. close to a open window?

I'm talking about standing air vs. forced air.

Also you're getting into fluid dynamics (or whatever that branch of physics is) territory :D I guess you could take the thermal conductivity of air, copper/alluminum, figure out the surface area, and do a little math. I could tell you right away though that 120x3 is much better than 19x9.


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