Small Contest for a nice Christmas Gift

[LittleDevil]

And here is my unit:

Loaded temps @200W.



And now, pics without flash:









And some pics with flash:









What do you think guys

Regards

[7499richard]

LittleDevil I really like that case, very nice

[jan]

Ok, I've finished the unit and updated my worklog in post #32. Hope you like it.

http://www.xtremesystems.org/forums/...0&postcount=32

[Fhqwhgads6680]

Nice work guys... I am not going to even be close to done with mine in time... thought I could pull it off, but I am moving into an apartment this week and with Xmas and all I have had no time... Good luck tho guys they all look great so far!

[Dimas]

here you are my system for the contest,it take me a bit of time, in the spare time but finally i finish it.

specs
compressor aspera ne2130z
big condenser from DimasTech
evap v5
coaxial heat exchanger
2mt cap line 0,78mm
1mt suction line
Unseen Freeze Pack Controller (really thanks to Christos,best controller ever!!)
case for Staker Case (58cm long)
special cuts for nick of owner and water in and out

the Goal for this unit was to hold a quadcore at around -40 on evap, and to hold a dual 8800 gtx at around 20 degrees for the water.
currently the unit is at owner house.
from my test i had to sacrify a bit the evap temp, to have a good floodback for the heatexchanger cooling water, but goal is almost achieved.
having a report from customer this days...hope before xmas

let pics speack



















thanks

[TopherTony]

WOW very nice Dimas, was wondering when I was going to see a water cooled condenser in this contest

[bassie]

WOW very nice Dimas, was wondering when I was going to see a water cooled condenser in this contest

I don't see a water cooled condenser?

[Duniek]

I don't see a water cooled condenser?

bcoz this isnt watercoolend condenser
that build is hybrid

SS + chiler

btw
my NEW SS

I should win with it

[TopherTony]

bcoz this isnt watercoolend condenser
that build is hybrid

SS + chiler

I didnt look hard enough at it. WOW, I am so tired.

[TopherTony]

Well I missed my deadline for this project. I am leaving on vacation to Arizona in 6hrs and I made a valiant effort. I finished all the brazing, pressure testing, vacuuming and initial charge today, but when I went to turn on the compressor for the first time, it runs for a good 10 sec., and then blows the circuit breaker. Turns out that this house my parents moved into only has 10 amp breakers. Not useful when I got a 1/2 hp compressor plus an Iwaki and a bunch of fans, never mind the actual computer that has to go in it.

So anyways, I just wanted to get it running today and submit some photos of temps, but as far as aesthetics, I havent touched it yet. I dont think I wouldv'e won but it was a goal.

Anyways, good look to the other contestants.

Dimas has my vote so far

[teyber]

bcoz this isnt watercoolend condenser
that build is hybrid

SS + chiler

btw
my NEW SS

I should win with it

What temps does it hold? I think you should swap out the current catpressor for a siamese type catpressor... much more efficient

[knightwolf654]

that is the greatest pic i have ever seen

[Duniek]

CATPRESSOR

[[XC] 2long4u]

I don't think that :banana::banana::banana::banana::banana: will hold a quad.
The yellow eyes are trippin me out!

[killermiller]

Put the dog in there too

Right now it is a CATscade!

Are those printed circuit boards for controllers?

[Dimas]

bcoz this isnt watercoolend condenser
that build is hybrid

SS + chiler

btw
my NEW SS

I should win with it

where does is service valve on that catpressor?

[Movieman]

bcoz this isnt watercoolend condenser
that build is hybrid

SS + chiler

btw
my NEW SS

I should win with it

I think this guy deserves to win a special consolation prize!
For the most catastropfic system entered!

[piotres]

Hello

Very nice cat Duniek .

*** another CASCADE BY PIOTRES ;-D - part II ***

I've brazed and insulated suction line (I'm waiting for green sleeve for it ), I've got at home already all parts, except that sleeve .











Now I need green sleeve to put on it .







TORRECILLA 1.8L receiver will be modded to expansion tank .

I'm not sure if I'll be able to make any more work before Christmas, too much household work to do .

With Kindest Regards
Peter

______________________________

Added - 24.12.2007

I've decided to use 12000 BTU 1HP compressor in 2nd stage :



Also I'll build soon new 260W dummyload, resistors have been comming to me :-) .

Best Regards
Peter

[Solarfall]

great progress so far with my cascade piotres cant wait to try it out

[jinu117]

Don't think I will make it in time for this lol. Too much obligation to get through.

[LardArse]

cruelty to animals not alllowed!!
comeon guys just one more day to go!!!

[PhilippF]

Which one is the cat?

[boshuter]

Don't think I will make it in time for this lol. Too much obligation to get through.

I finished mine a few days ago..... just need to do the write up for the build log and get it posted.

[Duniek]

update my second post in thread
unit hold 235W @ -30-31 wih not properly tuning
only little floodback in 0W
bcoz i have acumulator
very well working

sorry for no pics
I borrowed camera to family

EDIT
catpressor dont holdquad

[boshuter]

One of our members approached me a while back to see if I was interested in assembling a phase change system for him in a case he had fabricated completely out of aluminum; I said "sure".... then he started explaining what he wanted to do :yikes: At first I wasn't sure..... then I saw some pics of the case he had made and that won me over :yup: The thing blew me away with the looks and quality of the build. :thumbs:





We agreed on the deal and it wasn't long until 2 large packages arrived at my house. One contained the case with a box inside of it containing enough parts for 2 complete phase change units (except for copper tubing and insulation), plus some extras, the
other contained 2 brand new Danfoss NF11FX compressors. :chit:

Build Specs: (everything X2)

Danfoss NF11FX 3/8th HP Compressor
Chilly 1 Evap with Jinu braided flex line
"New Style" Chilly 1 mounts
.031 captube
Jinu's condenser
Xtreme Cooling Controller w/LCD (green lcd to match lcd in UFO pc case)





At first I figured this would be a simple "assemble the parts and be done" deal...... that was before I got the tape measure out and found out just how much (or how little as it turned out) room I had for this project. Both phase units had to fit inside an area measuring 16"X 17" and the small measurement was front to back where I really could use more room. You can see in the pics with the compressors and condensers sitting in the case, just how much room there is with the front and back case fans..... very little room between the compressor and condenser. :scratch:



I grabbed a bunch of new 1/4" tubing and my trusty tubing benders and set out to try to fit some kind of subcooler coil in this system, after much trial and error (I have a lot of bent 1/4" tubing if anyone needs some ), I finally got it done.:thumbs: I am really pleased with the tubing; I felt with the small condensers and general limitation on build room that we really needed a subcooler coil with these units, and I really wanted it in the airflow from the condenser fans if possible. I made a cardboard template that fit in the bottom of the case and set the compressors and condensers in where they had to go and marked the mounting holes for them on the white cardboard. I could then take the cardboard out and use it on the workbench to do all the bending and tubing layout work. This was pretty nerve wracking work for me.... it had to be right the first time and there was very little margin for error..... it also had to look good and I wanted both sides to be as close as possible to each other. Anyway, here is the final tubing layout (with exception of flex lines, which will exit the rear of the accumulators).





I brazed the first unit together today and it's leak testing now, if everything is ok it will be vacuumed tomorrow and maybe an initial charge.

Brazed pics..






Ok..... got the first unit all insulated today and decided to run the load tests. We had a target load of 200w max since Greg is running a dual core X6800 and plans on going to 45nm quad next; Plus the fact that with our limited space we were very marginal on condenser size. I was expecting app. -30c at 200 watt, at first that is about what I was getting when I initially charged the unit with r507. I had some r502 here that a friend had given me to try, I knew it had more capacity and would run lower pressure than the r507, so I decided to try it. I charged the unit to around 60psi static pressure with the r502, then started the compressor and tuned to load with propane. It turns out that mix worked very well, I got more capacity and lower temps than with either gas by itself. Anyway...... here are the load test results... enjoy:thumbs:

Temps measured at top of evap (runs around 5-6v colder than with probe in base), unit was run at least 30min at each load except for 235 watt, it ran it for at least an hour.

ambient 22c
idle -53.8c
100w -45.6c
150w -42.5c
200w -39.4c
235w -35.4c (never expected it to run this much load, that is max this load tester would do)