My New Winter Project

Jokester

Jokester

Jokester

Don
Joined
7 Aug 2003
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Location
Aberdeenshire
Will feature three of these:-

2011project1.jpg


in parallel, going to have some ball valves as well so I can compare performance with 1, 2, and all 3 radiators in the loop. I'm also planning on having some flowmeters in there to check the flowrates.
 
Hyburnate said:
And I just blew my cannon, LOL. 3 Loops?
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What I'm planning is a hot loop, with a single D5 cooling my CPU, MB, and GPU. The cooling loop with another D5 going to the 3 radiators all in parallel. Both loops will be fed from a common reservoir (well in fact it'll be two reservoirs, but with a common line between them. Doing it like this means I have all the cooling capacity available regardless of whether it's the CPU under load or GPU/s.

I'll use the ball valves to block off the flow to either one radiator, or the other 2 radiators, so I can run it with either 1, 2 or all 3. It'll let me demonstrate how effective multiple radiators are. I've also got some flowmeters so I can check the effects of flow rate, both on the radiator performance, and CPU cooling performance.

KiiYzOo said:
can't you start it now? :p
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Waiting on a case for it all :( Won't get one for another couple of weeks by the looks of things. Currently have everything else needed for the build, though I have a choice, either transfer across by 2600K or buy a Bulldozer. Tending to go for the 2600K as this will also allow me to do a direct comparison of how effective my passive case is and see if it has actually limited my overclock at all.

lrlcr said:
480 or 560???
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Just 480s.
 
What's the point of two reservoirs? surely one massive loop would be best?

How are you going to move the heat between the two loops? Surely that's going to be the limit of your heat removal, as you're never going to be able to transfer the heat out as quickly as you could remove it with the rads.
 
lrlcr said:
What's the point of two reservoirs? surely one massive loop would be best?

How are you going to move the heat between the two loops? Surely that's going to be the limit of your heat removal, as you're never going to be able to transfer the heat out as quickly as you could remove it with the rads.
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2011project2.jpg

This is how it'll be plumbed. Really the second res for the second pump on the right is going to be there only so I can hang the pump off it so I don't need to mount the pump on anything. In reality I could remove it and use a T-line and hang it off a fill port on the case, but until I get the case I won't know for sure if this is possible.

The water from the CPU/GPU will mix with the water coming back from the radiator.

Going to have some inline temperature monitoring to measure the temperature at various points round the loop.
 
Is the cold return from the rads going into the first res then the second, or just straight to the second res.

Could you do this with one of the dual pump bay reservoirs plumbed in at the two points?
 
lrlcr said:
Is the cold return from the rads going into the first res then the second, or just straight to the second res.

Could you do this with one of the dual pump bay reservoirs plumbed in at the two points?
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The cold return is getting mixed with the hot return in the same res. The 2nd pump will then pull water from that res through it's own personal res (which I'll be using as a fill point for the whole system).

I did look at a dual bay res/dual pump combo, but my concern wsa that the pumps weren't decoupled from everything else, so any vibration would be transferred into the res and then the case.
 
Surely you want the water as hot as possible when entering the rads to get the greatest temperature difference for better cooling.

As far as I can see there isn't a huge amount of reason for both reservoirs (aside from it looking awesome)

As far as I've read, the bay reservoirs are pretty good at being quiet as there's a large mass attached to damp the movement.



Sorry, I know it comes across as i'm poo pooing your idea but I'm really not, just trying to get my head around it!!!
 
lrlcr said:
Surely you want the water as hot as possible when entering the rads to get the greatest temperature difference for better cooling.

As far as I can see there isn't a huge amount of reason for both reservoirs (aside from it looking awesome)
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Yeah the second res really is nothing more than a big bulge in the tubing. Ideally I would hang the second pump off a fillport in the roof of the case, but from the photos of the case I don't think there's space to do it. That's normally how I mount a pump as it makes them effectively silent.

Temperature wise in the loop, the difference is going to be so small between the hottest and coldest point that it won't make any real difference, but yeah you are right, you can dump more heat the bigger the temperature difference between the air and water in the radiator.

I'm just thinking if I can add a bypass in so the cooled water goes straight to the 2nd res to see how much difference it makes.
Sorry, I know it comes across as i'm poo pooing your idea but I'm really not, just trying to get my head around it!!!
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No worries, if anything it's good discussion round about it.
 
2011project3.jpg

The black blobs are valves so I can either direct flow back to the res in the middle or bypass it and go direct to the 2nd res on the right.

I guess the other question is whether 2 pumps is required, which I can also check with that arrangement as I can turn off the cooling loop pump and just let the pump on the right do all the hard work, which is probably the preferred scenario as running 2 pumps in series isn't great.
 
I'm not sure you need the second pump/res setup at all, if you have a good pump then you shouldn't struggle at all to push everything straight through the hot stuff, the triple rads and back to the cold res.
 
lrlcr said:
I'm not sure you need the second pump/res setup at all, if you have a good pump then you shouldn't struggle at all to push everything straight through the hot stuff, the triple rads and back to the cold res.
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Yeah, I'm heading this way now I think. When I was flusing the rads, I put them in series and was getting 3.5l/min, the restriction will be even less once put in parallel so don't think it's much of a load at all. Plus it means less heat dump from the 2nd pump.
 
I think you've got the ball valves in the wrong place for the rads, you just want them immediately before the 2nd and 3rd rads otherwise currently you can have 0, 1 or 2 rads!
 
lrlcr said:
I think you've got the ball valves in the wrong place for the rads, you just want them immediately before the 2nd and 3rd rads otherwise currently you can have 0, 1 or 2 rads!
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Nah, with both valves open I'll have 3 rads online, close the top valve only 2 rads, close the bottom valve only just 1 rad. Close both valves the loop will go booom :eek:

There's a reason why I won't have them before 2 and 3, but I'll show that during the build.
 
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