Our first Gfx phace-change cooling
 

Felow shrimpers and vistors

Today Me and Colin dated together at my place:D
he had some goodies with him.

A compressor(1/5 hp), some capillaire tube, Condensor(chilly1), and some parts for an evap and random stuff

First we started to get the evap together.
This design of evap is not original but very cost effective.
its a base of 5mm thick and i think 5cm on 5cm.

Then some small cups and bigger on top.
then between the 2 cups some nail(offcourse i am the nailmaster^^)

Here i am pointing where the holes must be drilled to present the nails.



Here you see the nails into the base ready to be brazed.



Brazing in action, don't forget your glasses=-)



Sherry red :grin:



Then the first cap is getting brazed onto the base.



Then the second and bigger cap on top of the small one, and a tube on it to braze the flexible hose on it.



Flexible hose mounted, its a corrugated stainless steel hose.



Little closer :o



Then the "mantel" around it to cover the cappilaire tube and to let it look more proffessional.



So evap is ready lets start with preparing of the main parts.
Here is a schaëder valve brazed onto the service connection of the compressor.



Finito :super:



We made and add a desuperheater coil to absorbe the vibrations of the compressor and precool the gas that left the compressors discharge.



Then the filter drier is placed, exit pointed downwards to be sure there is 100% liquid entering the capptube.



Next thing is the tube for the suction line, there is a bend into it to to prevent liquid return to the compressor and also for vibrations a bit.



Everything is now wrapped together and ready to get vacuum.



We vacuum with an old compressor but it gets down to -1 Bar so sufficient for now.

Small unit isn't it :ws:



Now we placed it onto its baseof wood that was made for it, colin sawed it to the dimentions of a vapo Ls.

We got everything ready for a vacuum and filling of the system. We got outside because the propane and a basement isn't the perfect place.



Yeah we know the suction line is long but its easier to mount it onto his R9700 pro.

Close up of the unit.



System was vacuum and filled with R290.
Base was getting cold and frosted.



FROSTY:mad:



Then the temps, we had liquid return because the compressor suction was getting pritty cold and frost was forming.



After releasing some gas temps got better and We only cheered when we got to the maximum we got at the moment.

Allmost: (left temp is coldside of peltier, right is temp of side of the evap)




This was the coldest we got with a TEC of 50W



It was a succes and i have only one thing to say.
Colin TAKE THE WR DOWN.

Colin is going to tune the system a bit this weekend.

greetz,

Going to make for me an gfx cooler too.

sunday i'll prepare everything and monday wrap everything up:D

colin this is the day we going to learn belgium what phase-change coolin is:D

Very nice Jort and Colin!!!!!

that is wicked!!!!

nice job jort and good luck colin :king:

Saved $800 :banana:

That's what I call "work" with brain and hands + a few good tools. I have all the tools + the manifold, wish I have a decent g/f to motivate me. :D

Excellent work ;)

hehe thanks "lazy"man

there are going to be some [M] guides for phase-change in the future.

May be a guide on "How to build your own VC with your name on it?"

Hope you have taken pictures along the way.

Hard hat is not required :)

i am a pic master, so there will be plenty of them.

i'll start sunday with the pics:)

Cool. If you can do al that stuf. :o

you can learn all that stuff:)

just do A and B follows:)

I've worked on the system until 4.00 AM this morning, about the best I can get is -41.6°C evap temp with 50W load and -46°C unloaded, this with completely no insulation.

I have to the put it on the 9700 Pro though for further tweaking, I beleive the cap tube is a little too short for the small load of the peltier.

Pics will folow.

colin said early today he is @ -47.6 unloaded:D

First of all, just before I left Jort's place, we noticed there was a small leak in the suction line.
Because I had no oxygen bottles left, I had to repair with a little butane/propane torch :p

Some soap testing after the leak was repaired:


Triple evac, vacuuming the low side on pic:


Another evac pic:


Charged and frosty, using a 50W as dummy load:


Frosty suction line:


Evap temp with 50W load, not insulated:


Evap temp unloaded, not insulated:

frosty, sweet
nice job

look whats underneath it;)

its on idle :)













is this good enough till now? :banana:

he will test later this day

you oughtta get a 7800 gtx...

friend has one, but he is on vacation.

he might get back when i've got mine ready:D edit=>(phase*change)

you oughta realise not everybody earns enough to buy such kit, especially when the people in question are not even working:p

Check post be4 yours. :p

btw I haven't got any 7800 gtx :)
there's no new games

oeps mistyped :D

i ment when i've got my unit ready:D

I thought as much, of course :)

Insulation will further reduce temp :)

Jort, If this is indeed one of your first custom setups, I must say that it is a very impressive one. I would like to see you make a cascade sys- would probably end up looking like one of the team puss ones. You have seen the team puss cascade setups right?

Would like to know what size cap you used and the length pleaze. Did you get your drier from ebay? Because i got one just like it =)

I must have missed this thread... frigging nice work!!

Jort let me know when you such things again. I'll drop by sometime then :)

btw impressive like always.

i'll contact you when i'll mod the mach1 & mach2 within few weeks.

they are from kristos, my job is to get them up and running and after that sell them.

and yes i read teampuss every day :)
and thx for the compliments;)

i bought my driers at a local hvac company.

i don't know the size of the capillair, he got it from chilly 1

question
 

for best load temps using a r22 compressor what should the ratio of r290 and r134 be? And thanks for the reply jort.