Hey guys. I thought I would post this up over here to show off my latest cooling adventure. A few months ago I decided to have a cascade built for benching -90C or so on my cpu. My buddy Nol aka n00b 0f l337 is building the unit. After discussing the unit we decided to water cool the first stage of the cascade in order to get better temps and capacity out of the unit.

Here she is being built.

The aim is for a strong bencher for current Quads and future Quads. So, two nice Matsush17a rotaries, 3/4 hp each, 13cc, two of my large condensers stacked (though different this time!), a watercooled HX, 10 plate HX, 340 Temprite Oil sep with hand valve and capillary for oil feed, Chilly1 evap with mount, 36" braided flex, normal cutoff for second stage, 1 ton filters, expansion tank, and capillary on both stages.
Watercooled HX is 5ft of 1/4" in 1/2", with female 1/2" threaded ports for change-able barb size.
Some prelim pics of build so far.
I have plans on casing this once its done.







Some of you might be wondering how the water cooling plays a role.

Well it goes through that coil which is a heat exchanger. It is basically one tube inside of another. The inner tube is part of the first stage of the cascade and carries the refrigerant. Between the inter and outer tubes water flows through and cools the refrigerant for better capacity and colder temps.

Ummm, can you translate all that to laymans terms. This looks like a really interesting project, but I gotta be honest, I don't have a clue what you are talking about.

at this rate you are going to have cooling companies scouting you

Quote: Originally Posted by DickNervous Ummm, can you translate all that to laymans terms. This looks like a really interesting project, but I gotta be honest, I don't have a clue what you are talking about.

Sure.

It takes two compressors from air conditioners. Both of which compress refrigerants. Its a cascade which means there are two stages.

The first stage cools down the second stage. This allows the second stage to get super cold.

The second stage then cools down the processor.

Hope that helps

Quote: Originally Posted by THRiLL KiLL at this rate you are going to have cooling companies scouting you

Haha unit is being built by my good friend. He is going to teach me how to make simple units that arent as cold similar to the one Lokie just reviewed.

Looks nice man, are there any advantages over using LN2 though?

Cheaper (in the long run?) than buying lots of LN2 maybe?

Quote: Originally Posted by Zaltan Looks nice man, are there any advantages over using LN2 though?

Althought ln2 is cheap and colder. You can run a cascade for much longer. It also saves me from filling up ever few minutes. Not to mention I can bench whenever even if the ln2 store is closed. It should help in maximizing the clocks on ln2 as well.

Quote: Originally Posted by Dex Cheaper (in the long run?) than buying lots of LN2 maybe?

Not really so much the cost. Seeing as it still costs money to run the cascade(electricity)

Yeah, I suppose just less hassle. Looks pretty cool bro, looking forward to seeing it progress. Whatever case you build for it has to be a work of art itself, break out the mod

Quote: Originally Posted by Cpt.Planet Sure. It takes two compressors from air conditioners. Both of which compress refrigerants. Its a cascade which means there are two stages. The first stage cools down the second stage. This allows the second stage to get super cold. The second stage then cools down the processor. Hope that helps

Ah, helps tremendously!

So the cascade is similar, in concept, to using a TEC/Water block where the TEC cools the CPU and the Water cools the TEC., except that you will use two compressors.

Now that I understand that much, let's see if I can figure out the rest. You are setting up two loops. One loop will be Compressor A - CPU Block - Heat Exchange Loop (hot side). The second loop will be Compressor B - Heat Exchange Loop (cold side) - Heat Exchange (hot side).

So heat will go from CPU to Liquid A to Liquid B to Ambient air. And by using Compressor B to take the heat from Loop A, you can get the fluid temps in Loop A much lower.

Did I get it?

Looks sick, I hope your not having chilly1 make it for you, I've heard he's a little slow with things.....


Otherwise, i like the watercooling part, should definately make it interesting. Pipe in a Pipe tech is fricken schweet.

Quote: Originally Posted by s1ugh34d Looks sick, I hope your not having chilly1 make it for you, I've heard he's a little slow with things..... Otherwise, i like the watercooling part, should definately make it interesting. Pipe in a Pipe tech is fricken schweet.

Chilly1 is in debt up to his eyeballs. A buddy is making for me locally. So I get to drive and pick it up. Woot no shipping.

Little update

First stage brazed up. Dual capillary with 8ft on each line of .031" diameter rapped up nicely





Forgot the mascot for the build! Good thing he didn't forget the safety

Brazed up completely except hand valve which should be here soon! Lookin good n quite good lookin Expansion tank will be up top, safety device all installed, oil sep in, all basically ready to rock n roll!










All brazed up, pressure testing now, oil loop located to the back nicely. Expansion tank up on top.

Could you or the person taking the shots put something in for scale?

That thing looks like a Small Factory

Some goodies arrived today.

The Black Ice Xlfow Xtreme III as well as a D5 pump from DangerDen arrived. Thanks guys!!!!

Also I got some carbon fiber for the case. Only a small roll of it at the moment to make some trim pieces and learn to mold it and what not.

Heres the raw carbon fiber.





I will have pics of the water gear in a bit. Working at the moment and the camera batts died

thats the craziest thing I have ever seen.

Got a chance to go over NoLs and take a few pics of the unit myself when I was dropping off the water gear last night

Back of the unit

Left side of the unit

Right side of the unit

Front of the unit



Took a few measurements last night to get started on the case.
I will be posting that design shortly

all your cooling are belong to me......
NOW BOX THAT BEYOTTTCH AND SEND IT OVER...lol