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Thread: Flow rates and Temps

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  1. #1
    L-l-look at you, hacker.
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    Quote Originally Posted by FragMagnet View Post
    ...the fact that in some tests indicate that larger pumps, larger rads, larger hoses, in a high flow system, they only yield 1-2 degrees better temps. Either due to the pump heat, or you've gotten to the point of diminishing returns.
    Well, duh. Obviously you're going to get diminishing returns, again as your system reaches equilibrium and the increase in thermal transfer efficiency reaches the narrow end of the logarithmic curve. But that's not what you posted above:
    Quote Originally Posted by FragMagnet View Post
    ...build a system with low flow high restriction components, then stick a huge pump on it, the temps will increase as well.
    You were saying that in some situations lower flow rates will give better temps - which is wrong. Higher flow-rates will not always give you appreciably better temps, but you're never going to get better temps with lower flow than you would with high.
    In the case of the OP's, physics said adding an additional rad, faster fans, and moving the rads outside would give lower temps, in his case it didn't.
    Indeed - to quote, diminishing returns. I can guarantee that the temps were lower, the difference was just not significant enough to register on the measurement instruments used.
    It's not just the parts used, but how they work together that gives the end result.
    Well, yes. Clearly: a waterblock on its own is useless, and the Supreme will suck big-time when used with something like a piddly Tt P500 or a low-end Eheim. But that doesn't magically mean that something like a FuZion will give you better temps with the P500 than it would with, for example, an Iwaki. All dogs are not cats, but not all things that are not cats are dogs.
    Before SteveRo's testing there were a lot of high flow believers swearing up and down that the Boreas wouldn't work for one reason or another. Yet that low flow system produced better results than his high flow system ? Sure it had low wattage air cooled TECs. But the end results are similar, and so is the price point.
    I'm losing track of your argument here - the Boreas uses TECs, which will give you temps better than the most efficient ambient cooling system ever designed (as they're not limited to ambient) provided they're adequately cooled, but this proves low flow is better than high...how? And what does relative cost of product have to do with liquid dynamics and physics?

    Edit: I should reiterate that for the sake of argument I'm ignoring pump heat-dump issues and focusing merely on low/high flow.
    Last edited by SoulsCollective; 03-03-2009 at 04:22 AM.
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  2. #2
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    [QUOTE=SoulsCollective;3691455]
    I'm losing track of your argument here \QUOTE]

    No kidding ! Probably because I wasn't arguing, just trying to exchange ideas based on my experience in different fields. There is no 1 "absolute" answer for all situations, you keep stating your position as an absolute, then go on to say "except" this, and "except" that. Like I said I don't come to xtreme to argue, there's dozens of forums online for that, xtreme used to be the exception, but clearly that's changed since I was here last !
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