dunno about imageshack, but Ive had a webshots pic bookmarked for over a year nowQuote:
Originally Posted by extremecorvette
D
dunno about imageshack, but Ive had a webshots pic bookmarked for over a year nowQuote:
Originally Posted by extremecorvette
D
Send me a PM I can host pics for you.
www.illhostit.com but if you dont look at a pic in 30 days it will get deleted so as long as you check the pic at least once a month it will never get deleted
good on ya :toast: .......this is going to be great :slobber:Quote:
Originally Posted by bh2k
since he has bh2k no sweat........otherwise i'd go with imageshack as they don't seem to have any restrictions and all the pics i hosted for the last year seem to be OK still :DQuote:
Originally Posted by Lead Head
man i cant wait for some pics of this beast
yea haven't gotten any pms on whether I'm needed yet though.
If I get time today I will post the pictures. Sorry it's taking so long.
i can´t wait to see more pix of your impressive unit
leave a meal an take this time to post the pics here ;)
check your old parts to see if you accidently mixed them up and left a 1/8 ton seat in 1 valve,it happens.
love this thread :woot:
New drooling pics, awesome, great to see some movement at last :)
G
15th Update 1-2-06
I finally got back in to the lab to finish the beast, and look what my friends put on the system.
http://www.cryo-laboratory.com/uploa...0%28270%29.jpg
With the new Crossfire and SLI systems coming out I wanted to change this system to work as a crossfire system. So instead of having 2 evaps it now will have 3.
I started off by getting the two new 90 degree evaps blocks polished. Thank you Reggie for making the evap blocks for me. I used the same steps to polish the evap blocks as I did before. To 0.005 Micron finish
http://www.cryo-laboratory.com/uploa...0%28279%29.jpg
http://www.cryo-laboratory.com/uploa...0%28278%29.jpg
http://www.cryo-laboratory.com/uploa...0%28276%29.jpg
With the evaps polished and pressure tested. I have to remove the old evap block.
http://www.cryo-laboratory.com/uploa...0%28284%29.jpg
http://www.cryo-laboratory.com/uploa...0%28286%29.jpg
http://www.cryo-laboratory.com/uploa...0%28280%29.jpg
With two evap blocks merging into one suction line I had to make a manifold for them to merge into the 3/8" suction line.
http://www.cryo-laboratory.com/uploa...0%28289%29.jpg
http://www.cryo-laboratory.com/uploa...0%28288%29.jpg
http://www.cryo-laboratory.com/uploa...0%28290%29.jpg
With the two evaps I wanted to make sure the 1/8" lines that feed the evap blocks after the A7A valves were all the same length.
In the old setup I only had one A7A valve so I had to add a second. I'm running out of room fast.
http://www.cryo-laboratory.com/uploa...0%28285%29.jpg
All brazed in places.
http://www.cryo-laboratory.com/uploa...0%28291%29.jpg
I made sure to have a dry nitrogen gas bleed any time I brazed on the system.
With the GPU evaps in I went to work on the TXV's. Sporlan sent me the 1/4 ton kits. With the kit I can make the SRE-1/8 ton valves a 1/4 ton valve.
http://www.cryo-laboratory.com/uploa...0%28273%29.jpg
This is what comes in the kits
http://www.cryo-laboratory.com/uploa...0%28274%29.jpg
You can see on the left is the 1/8 ton and the right is the parts of the kits.
http://www.cryo-laboratory.com/uploa...0%28275%29.jpg
You have to using the gagging card that comes with the kit to find the new length of the push rods. Then you get to file them down to length.
http://www.cryo-laboratory.com/uploa...0%28282%29.jpg
You want to make sure there all the same. So I got them all same length down to the .0000 I once I got the first push pin to length I zeroed my calipers to that length and made sure I got each one the same length. It does take some time.
http://www.cryo-laboratory.com/uploa...0%28283%29.jpg
With the push pins all the same length I put the new parts in both valves.
After installing the dual GPU evaps I vacuum pumped the system down. With the system vaced down I put instrument propane or R290 in the system up to 1-2 psi on the gages.
http://www.cryo-laboratory.com/uploa...0%28301%29.jpg
http://www.cryo-laboratory.com/uploa...0%28271%29.jpg
After that I charged the system with R1150 to 100 psi, I did this on both the CPU and GPU systems.
http://www.cryo-laboratory.com/uploa...0%28292%29.jpg
With all the stages charged up and ready to go, I fired up the 1st Stage.
It toke me some time to get both TXV's to balance out. Both are the same parts in them and look what settings I had to have them at to get the evaporator temps to be the same.
http://www.cryo-laboratory.com/uploa...0%28304%29.jpg
http://www.cryo-laboratory.com/uploa...0%28298%29.jpg
I shut the system down over lunch and came back and fired it back up to see if both would balance out again or if I was going to have to tweak it again. Both balanced out with in 1-2 degrees at all times. I fell really well about that set up. The only down side to it is it takes about 30 minutes to get them both down to temp. Each one will hunt. At start up each valve is opening and shutting, the range they hunt starts off large and decreases each time they hunt. In about 30 minutes with stay with in 1-2 degrees at all times. But at start up one suction line leaving the evaporator can be at -45C and the other at 20C.
But both will get down to -44C to -45C on the suction line leaving the evaporator with a suction line pressure of 1 psi, that puts the evap temp at -52.5C
Picture of the suction line leaving the evaporator
http://www.cryo-laboratory.com/uploa...0%28294%29.jpg
http://www.cryo-laboratory.com/uploa...0%28303%29.jpg
http://www.cryo-laboratory.com/uploa...0%28295%29.jpg
With the 1st Stage down to temp I fired up the 2nd Stage.
The A7A valve frosted over in under a minute.
http://www.cryo-laboratory.com/uploa...0%28300%29.jpg
The temp on the evap block dropped from room temp to -65C in 4 minutes. I had to adjust the A7A valve to get the evap block down to -84C.
I was checking every discharge and suction presser to see what was going on.
http://www.cryo-laboratory.com/uploa...0%28305%29.jpg
I was not able to get the evap block past -84C. I tried everything, with the A7A valve I changed the suction line pressure from 20 psi to 15 in HG in a vacuum and I wasn't able to get lower than the -84C. With R1150 at 0 psi the temp should be at -103C. I worked on the system trying different charges and charging to different static pressures. But -84C was the best I could do. It didn't hit me until I packed the system up and was haling it home that my temp probe wasn't rated for any lower than -65C. So I have just ordered three probes that are good down to -200C and I will recheck the system with the new probes.
According to the chart we have the system running at -103C
This has been a great project. Even after I started this project I had tons of new ideas for the next, on how could I make it better.
I'm not done just yet. I am working on new design that will blow you away. I was going to bench mark on this system but after talking with ATi, AMD, and Sapphire we think it's going to be best to do it with the new system design.
I will once again post all the build pictures and walk you thought the build process. I hope to add video to the next project post.
I want to thank all the people that made this project happen and all of you for watching and posting your feedback.
Coming soon
Mother of All Crossfire Systems, -1XXºc X Evaps and Cools the Motherboard also!!
I marked the old parts with a permanent marker so I couldn’t mix them up. The parts in them are all the new parts.Quote:
Originally Posted by wdrzal
system looks nice there extremecorvette.
i have to run about 10hg at load to get -103c.
I think most ppl have to vacuum to get -100c which is quiet hard really unless using massive compressors.
I think its cause the system is so large that temps arnt close to -100c, and with valves ya need the right ones for given load(never dealt with them before, have you though of trying capillary line, I know it would be a pain to change though, might be worth a try one day)
Some times ya need load on these things to up the pressures to get better temps. This system still goes down in history as one of the greatest builds even at -84c or what eva it is at load.:toast:
I don't know what the total cost is, I was able to get most everything donated to Iowa State Unv. I have $500 of my own money in it.Quote:
Originally Posted by Carlin
I was at no load.Quote:
Originally Posted by kayl
bump! even tho the next system is gonna be better, i still wanna see this one tested. awesome job!! :toast:
wow, I just now happened onto this thread. Dont find myself in the phase section often, but this was a great read, even if it did take an hour and a half. :)
congrats on the monster system, and I'm really interested to see what you come up with next. Excellent work! :toast:
So what was the final verdict. Been kinda following this thing for MONTHS and it keeps changing.
How many heads? And does it still cool the mobo?
Nathan, I can't believe the run around this message board gave me just so I could sign up and post this saying good job. Excellent work! :woot: I'm excited to see what's next!
-Ben
3 evaps, and it cools the motherboard. I didn't finish the dielectric bath on this unit because I want to start ASAP on the new system.Quote:
Originally Posted by MaxxxRacer
can I have the "OLD" one? LOL. j/k, keep up the good work, nice seeing someone building something large an impressive, even standing beside other large and impressive projects. Wish I had the financial backing to build somethig other than ghetto single stage R290 units heh.
love this thread keep it coming mate