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# My first custom loop - Pics - Page 4

Quote:
 Originally Posted by nickbaldwin86 so if loops don't need a reservoir then you are contradicting yourself. If they don't need a res then they don't need the extra water? you make no sense at all. You really don't understand what you are talking about and I am just having fun watching you keep post defensive comments like your last one. Here is the water cooling math for you... water = water = water is going to heat up and come to room temp and then some, even if you aren't running the system(CPU) the pump will warm the water up (ie while leak testing). My point to you was a few more ounces or even a few more gallons will not make this more or less true. what experience do you have with water cooling? what you have read on the internets? I am sure if you read this carefully enough you will find a few misspelled words and grammar errors... please point them out, because while you cant fix a water cooled problem you would make a great grammar teacher
I actually used real world water cooling on a grand scale during my tenure as a Naval Nuclear Reactor Operator and I guarantee you I know the heat transfer and fluid flow equations to back it up. I've also used water cooling for combat systems, again on a grand scale, real world application. Not to mention such small projects as water cooling PC's. Don't be mad because I made you look dumb, because really, you only make yourself look dumb.

Quote:
 You have seen the studies where people have used 10-50 gallons of water and over time the water got to a equalize state and the point of having all the water was...pointless.
That's actually the whole point of water cooling. The more water is in the system, the longer it takes for heat to saturate, or as you say, equalize. If it wasn't for this wonderful transient delaying effect, then people would just use a nice air cooler.

Back on topic, the longer, curved tubes in the OP's rig not only add water to the system, but also likely cause much less headloss than a reservoir.

Edited by damric - 4/27/11 at 9:14am
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I think a few points are being missed in this discussion...
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Quote:
 Originally Posted by whiteslashasian I think a few points are being missed in this discussion...
...
 In Win 904 (18 items) Corsair 250D - mATX (13 items)
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Quote:
 Originally Posted by nickbaldwin86 so if loops don't need a reservoir then you are contradicting yourself. If they don't need a res then they don't need the extra water? you make no sense at all. You really don't understand what you are talking about and I am just having fun watching you keep post defensive comments like your last one. Here is the water cooling math for you... water = water = water is going to heat up and come to room temp and then some, even if you aren't running the system(CPU) the pump will warm the water up (ie while leak testing). My point to you was a few more ounces or even a few more gallons will not make this more or less true. You have seen the studies where people have used 10-50 gallons of water and over time the water got to a equalize state and the point of having all the water was...pointless. what experience do you have with water cooling? what you have read on the internets? I am sure if you read this carefully enough you will find a few misspelled words and grammar errors... please point them out, because while you cant fix a water cooled problem you would make a great grammar teacher
Actually, reading his posts in the Japan Crysis thread, you can clearly see he knows what he's talking about. I'd take anything this guy says about WC over what you say any day.

And he's right, WC loops DO NOT NEED A RESERVOIR. What do you think the Corsair H50/60/70 are? They're small WC loops with no reservoir. Reservoirs do allow more water into the loop and they also look pretty. More water=longer heat absorption throughout the loop.
Quote:
 Originally Posted by nickbaldwin86 ...
We can all agree that damric is correct, more water will take longer to reach its heat saturation point before it equalizes.

The point missed is that if we have more water sitting in longer tubing, this actually reduces the pump flow rate as we have more pressure in the system (PC WC pumps aren't exactly "powerful"). Therefore the water is not moving quickly enough throughout the loop and most importantly, is slower in getting to the radiator; the most significant point at which the water is actively cooled.

Therefore the cooling ability of a longer loop (more tubing, especially vertical) is reduced somewhat and the saturation temp will likely be higher than slightly smaller one, assuming the heat source (load), ambient temps, pump, tubing diameter, blocks, rads etc are the same (flow rate is not). I doubt it would be a significant difference though.

Just my \$0.02. It's been a while since I took thermodynamics and I may be remembering things incorrectly.
Edited by whiteslashasian - 4/27/11 at 10:30am
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Quote:
 Originally Posted by XNine And he's right, WC loops DO NOT NEED A RESERVOIR.
Sorry but did I say a loop needed a res?

Quote:
 Originally Posted by whiteslashasian We can all agree that damric is correct, more water will take longer to reach its heat saturation point before it equalizes.
Will take longer.... but once it reaches what is the point after that?
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It's not like he is going to get much headloss with those loops anyway. Look at them. Pretty nice curves, no obviously wicked bends. I'd say he did a darn fine job of it.

Quote:
 Will take longer.... but once it reaches what is the point after that?
Are you one of those 2012 Mayan trolls?
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Quote:
 Originally Posted by Crystal_Castles I'm sorry, but the way you have the tubing done on your GPU's makes me want to vomit. I just hate to see that much extra tubing looped all around everything.
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