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General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums. |
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08-18-2004, 08:19 PM | #76 | |
Cooling Savant
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Quote:
good idea, but I wanted a little more system capacity. /threadjack
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08-18-2004, 08:19 PM | #77 |
Cooling Savant
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08-18-2004, 10:57 PM | #78 | |
Cooling Savant
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Quote:
Dude, are we talking about totally different f$%ken things here or what? Clarification is in order. - T-line at bottom, open, and pump running. The OPEN END of your T-line is facing UP. And unplugged and yes, it is attached to another line that runs along the bottom of your case. If that is what you meant all along than I am wasting my time debating. Of course its not gonna leak. Doesn't matter if the pump is running or not. Water will level out. I was thinking that you had your T-line OPEN END at the BOTTOM of your case, with the pump running. In realization it doesn't matter where the 'T' is in your system. Some systems don't even have a 'T' period. I thought there was a miscommunication.
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08-19-2004, 02:16 AM | #79 |
Cooling Savant
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hmm some people seem confused about the antifreeze part - how much does a 15-20% antifreeze mix effect temperatures? that 18 times worse quote can be quite misleading....
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08-19-2004, 09:33 AM | #80 | |
Cooling Savant
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18x worse as far as viscosity, but not thermal transfer.
on another note, the article has been up less than an hour and I already have one email: Quote:
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08-19-2004, 10:06 AM | #81 | ||
Cooling Savant
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Quote:
Quote:
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08-19-2004, 10:10 AM | #82 |
Cooling Savant
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I read that email with the usual dejection until I realized who'd written it. Then I said, "Oh, God!" out loud.
I'd point out his strange assumption that 2 passes through the block must add more heat to the water while 2 passes through the rad must not dump as much. Also aim him at a "heat transfer is proportional to delta-T" article.
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08-19-2004, 10:14 AM | #83 |
Cooling Savant
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Needed to add something...
This really explains why we "big flow, big money" folks dismiss the Euro equipment so quickly. It's true, we ARE biased; biased against an apparent lack of relevant knowledge.
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08-19-2004, 11:38 AM | #84 |
Cooling Neophyte
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I hope the guy from Asetek is not one of their engineers for Asetek's sake.
Greenman, I guess you can still edit it? On the gold myth section, there's a dash instead of period right there--> "Diamond (6-50w/cm-k, dependent on purity)"
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08-19-2004, 12:10 PM | #85 |
c00ling p00n
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Oh boy, I just looked at that old ass Asetek pdf... in one graph, Asetek compares various blocks at different heat loads, twilight zone time... non linear c/w's. Then, in another grid of the Asetek blocks, the c/w's hold linear at various heat loads. It's no wonder he made the comment about needing 10x the flow, did you see those blocks? They are like flat copper on the inside, 'half moon' and 'maze'. Me thinks I should stop now.
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08-19-2004, 12:23 PM | #86 |
Cooling Savant
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Wait... Can we post that e-mail (name removed, of course) to show that even some major companies have problems with myths?
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08-19-2004, 12:43 PM | #87 | |||
Cooling Savant
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Quote:
check out the source link, dependent on purity, the heat transfer coefficent changes. Quote:
Quote:
don't think they're looking for that kind of attention
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08-19-2004, 12:49 PM | #88 | |||
Cooling Savant
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Quote:
(on a side note, my emailbox if filling up about the myths) Quote:
and his reply: Quote:
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08-19-2004, 12:56 PM | #89 | |
Cooling Neophyte
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Quote:
Woops... I didn't relize you were referencing a range of 6 to 50... my bad
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08-19-2004, 01:18 PM | #90 | |||
Cooling Savant
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Quote:
(on a side note, my emailbox if filling up about the myths) Quote:
and his reply: Quote:
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08-19-2004, 01:24 PM | #91 | |
c00ling p00n
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Quote:
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08-19-2004, 01:28 PM | #92 | ||
Cooling Neophyte
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Quote:
the guy doesn't seem to offer much in the way of explanation for his point more flow, more turbulence, a little more efficiency, sooo what's not to agree upon? why else would more flowrate through a 'pipe' yield better results? :shrug: Quote:
what is the greatest thing that seperates 7Up from Sprite |
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08-19-2004, 01:34 PM | #93 | ||
Cooling Savant
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Quote:
was just giving you a hard time Quote:
copying others?
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08-19-2004, 01:37 PM | #94 |
Cooling Neophyte
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other than the antarctica, not really
more like publicity |
08-19-2004, 01:37 PM | #95 |
Cooling Neophyte
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Lemon lime flavor???
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08-19-2004, 02:00 PM | #96 | |
c00ling p00n
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Quote:
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08-19-2004, 02:15 PM | #97 |
Cooling Neophyte
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It just hit me!!! This Asetek guy is Graystar!!!!
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08-19-2004, 02:57 PM | #98 |
Cooling Savant
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Greenman, you shouldn't have focused just on turbulence. As water travels through the radiator, it's temperature decreases. Since transfer depends on delta-T (and Andre didn't deny that point), we want to maximize delta-T by moving the cooling water out of the rad as quickly as possible. This argument is persuasive in its simplicity.
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08-19-2004, 03:36 PM | #99 |
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That article needed a lot more beef and supporting information in my opinion. You guys can do better. Not horrible but not enough explanation for some points and NO data to support "rules of thumb". I'm sorry I didnt get a chance to read this thread earlier; didn't realize an article for OCers was being formulated in here.
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08-19-2004, 03:58 PM | #100 |
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Interesting discussions with Asetek. I think that the answer is more complicated than saying that higher velocity is better or worse.
You can speed the water up with a single pass thin-tubing radiator and have worse performance than a heatercore. On the other hand, you can have a large tubing multipass radiator that performs worse than a thin-tubed multipass radiator. You have examples where velocity is not the primary problem. Instead of focusing on "slowing the water down" in the radiator, focus on keeping the water close to a heat exchanging surface for a longer proportion of it's time traversing the loop. Both elements have to be there: 1) high proportion of time and 2) quality of heat exchange. The slow vs. fast radiator flow debate (to me) seems better answered by looking at the costs of impedance to water and the amount of surface area that the water (not just the air) is exposed to. Blah. Feels like I'm talking in circles on this one. |
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