It is currently Thu Aug 21, 2014 6:13 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: What is the better material of radiator(copper or aluminum)?
PostPosted: Tue Nov 04, 2008 3:41 am 
Offline

Joined: Mon May 19, 2008 1:15 am
Posts: 4
Location: CA
May I ask for advice about liquid cooling radiator?

What is the better material of radiator(copper or aluminum)?

We know that using copper radiator can avoid the galvanic corrosion with the aluminum component.

Is the copper radiator an attractive condition for gamers’choice?


Thank you in advance!!


Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 04, 2008 4:15 am 
Offline

Joined: Sun Sep 14, 2008 1:04 am
Posts: 175
Location: Australia
Isn't it simply a matter of looking at the thermal conductivity of the materials?

Copper is a better conductor of heat than aluminium. The only benefits of aluminium are price and weight.

I hate it when the primary design consideration is "what will people buy". Function should always come first.

You sound like you're doing market research for a manufacturer :)


Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 04, 2008 4:59 am 
Offline

Joined: Mon May 19, 2008 1:15 am
Posts: 4
Location: CA
hello bgiddins

Thanks to your replay.
Actually my wife is a computing component reseller's staff and just contact this area.
i tested a aluminum radiator and copper radiator(hw labs);the results were similiar.
that's what i am confused. :shock:
Could it be said that the only attractive condition of copper radiator is no galvanic corrosion ? or any else reason copper is better

i know that copper has better conductor of heat ,but i didn't find the proof of performance.maybe you guys had some experience to share. :D


Last edited by EVAN_C on Tue Nov 04, 2008 6:30 pm, edited 2 times in total.

Top
 Profile  
 
 Post subject:
PostPosted: Tue Nov 04, 2008 7:16 am 
Offline

Joined: Tue Dec 13, 2005 1:08 pm
Posts: 1407
Location: Michigan
The low conductivity of air is the biggest factor. The effective surface area of the radiator is what is important. The radiator material itself should just be as thin as possible. Actually no material between the air and water works even better. :)


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 19, 2008 12:49 pm 
Offline

Joined: Thu Nov 02, 2006 2:15 pm
Posts: 161
Location: UK
If done properly, copper.

If not done properly, stick to air cooling and forget watercooling altogether.

Regardless of advertising claims, the fact is copper is a better heat conductor and superior for cooling so you're either comparing unfairly or doing something wrong. I suggest you have a look at more balanced test results from more experienced watercooling enthusiasts.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 19, 2008 2:26 pm 
Offline

Joined: Sun Sep 23, 2007 3:11 am
Posts: 107
Location: London, UK
echn111 wrote:
If done properly, copper.

If not done properly, stick to air cooling and forget watercooling altogether.

Regardless of advertising claims, the fact is copper is a better heat conductor and superior for cooling so you're either comparing unfairly or doing something wrong. I suggest you have a look at more balanced test results from more experienced watercooling enthusiasts.


Agree 100%. Most probably you are doing something wrong or comparing two products with VERY different characteristic. But first answer yourself do you really need watercooling? Silence wise - you will have to spend a lot of cash to get level of noise comparable to that from P18x with 1 fan. If you want overclock - just today I oc'ed my new E8400 with Ninja on it to 4770MHz and have room to go higher. So, if you don't want go into extreme oc'ing and don't want spend small fortune on quiet watercooling stuff - stay on air...


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 19, 2008 4:38 pm 
Offline
Patron of SPCR

Joined: Sat Nov 11, 2006 6:02 pm
Posts: 749
He's not doing anything wrong.


There is little to no difference between copper and aluminium where the radiator is concerned.

Copper has better heat conductivity, but as QuietOC said, the low heat conductivity of air is the biggest factor here, you will benefit much more from bigger surface area than radiator material.

In this thread is a comparison between copper, aluminium and even perspex/pyrex glass (sorry for the error in my second post, corrected in the third). The setup in the thread is a radiating submerged PC in oil with different materials for the case, but a radiator in a watercooled setup will have to dissipate the same amount of heat so the same physics apply:

drownmypc wrote:
I was aware of the thermal conductivities of copper vs aluminum, but I had no idea that they would perform nearly identically in this scenario. I guess it is because the thermal resistance of copper and aluminum are both quite low compared to the thermal resistance of air which is the final destination of the heat energy.
I guess the analogy is that of choosing between two resistors, a 1ohm and a 2ohm, to hook up in series with a 2000 ohm resistor. It doesn't matter whether you choose the 1 ohm or 2 ohm, the 2000 ohm is going to dominate.



EVAN_C wrote:
We know that using copper radiator can avoid the galvanic corrosion with the aluminum component.

This only goes if the other components are copper as well. Both copper and aluminium in the same loop needs an additive in the water in order to prevent corrosion.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group