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AIRCHILLER + Single-stage (worklog)

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piotres


Membre
Messages : 369

dimanche 12 avril 2009 à 23:27:34     
Hi

Mine next project - rather won't be boring like all 2 stagers - it'll be cooling chamber (to put inside mobo + all other stuff, except hdd and psu ) plus SS , all on one plate ...

Specs :

Compressor: two Danfoss SC18CL - one for airchiller, one for SS
Evap for SS: Steeper 40mm tall/42 mm diam., enclosure for all newest CPUs, 1.0 meter braided DN10 suction line (with
stainless steel mesh)

Evap for airchiller : Evaporator from split A/C unit
XV: captube 0.9 mm for SS, Alco TI-HW for airchiller
Condensor: two 1.9 kW + 254 mm fans
Refrigerants : R507 in both
Case : custom made, welded frame, custom perfored side panels, all powdercoated on black color, wheels.
Chamber :HARD moded Ladycook small fridge
Others: Control panel on top of chamber (switches for both SS and airchiller, switch for PC), Danfoss controller for airchiller, Frigomec 0.88l receiver.









Bone stock frigde ...brand new ... .






















Some reduction on parts used in frigde .







Mine new welding machine- MIG/MAG Esab C250 3ph .





Mine father helped me with welding a bit and later with grinding .



That was only 4 fun ...just a try on trash piece of metal .





















Fridge got small accident and had must been painted ...so paint is fresh high gloss black acryl .





















I decided to weld suction line holder for more safety .









More pics soon ...

Best Regards
With Happy Easter wishes
Peter
Google




     
oksaux


Descartes' club membre
Messages : 3669

mercredi 15 avril 2009 à 23:20:18     
it's look nice
but U need train welding
it's not dificult with mig/mag
Clemmaster


Benou lover <3
Messages : 5804

jeudi 16 avril 2009 à 17:59:15     
Excellent project there mate

Keep up the good work
Rosco


Administrateur
Messages : 25912

jeudi 16 avril 2009 à 18:27:26     
Why don't you make the chamber yourself instead of destroying a fridge ? Metal+polystyrene sheet should do the trick for insulation. Too much work ?
Anyway, good work
piotres


Membre
Messages : 369

jeudi 16 avril 2009 à 21:57:39     
QUOTE (oksaux @ jeudi 16 avril 2009 à 00:20:18) :

it's look nice
but U need train welding
it's not dificult with mig/mag

Yes I know, that frame was mine first play with MIG/MAG in mine life .

Welding by MIG is very easy, but to make it nice looking is bit harder .


@Rosco : Yes too much work, and for sure mine own chamber wouldn't be looking such good as factory fridge ..

Regards
Peter
piotres


Membre
Messages : 369

samedi 25 avril 2009 à 00:10:14     
Hi

Next part of worklog - 30 new pictures :

















Clear coat this time also .



















First time I've must use ladder when I build cooling system .











First tests, temperature inside chamber without any fans mounted.





Here with two 120mm - nice gain .









I was pumping hot air inside chamber from hairdrier working at 1st speed and taking over 700W energy - during 30min test temperature moved from -31*C (I've wait long, for lowest temperature) till -10 C - thermal probe was mounted in piece of cooper put inside chamber. It's not final .





Some heavy piece of brass inside - that's tip from future owner of this unit to use big pieces of cooper (but I don't have it, only brass) as a "cold magazine" .





Probe inside small cooper piece (don't have bigger ).



That's what we should say "ARCTIC FAN" .



That's loadtest of SS loop - make -40C@260W but I don't think that's most important part of this unit .

Regards
Peter
piotres


Membre
Messages : 369

mardi 05 mai 2009 à 00:58:24     
More photos, unit is nearly finished :



















I've added 4 pcs of 80mm fans behind the evaporator - to mount them I had must cut hole in back of fridge which later I've covered with styrofoam and new cut piece of steel plate. I couldn't mount fans before evaporator because in that way motherboard with long GPUs can't be put inside chamber (too little space) .



Testing Rig.



Noloaded I've reached nearly -49.5C air temperature inside chamber (I haven't shooted that on photo, only -48.2C) .



From that temperature I started load testing - pumping hot air throught 30 mintes produced by hairdrier (taking over 700W from 230V) by hole for cables on back of fridge .





Big brass block (that round one) temperature after 30 minutes loadtest (remember - over 700W) .



And same but measured by small cooper block .





SS unloaded.



SS loaded with 260W after 1 hour test .

Now unit is standing for next 2-3 weeks for testing if it's leak free for sure (of course leak detector sprays haven't showed any leaks but I must be sure), after that - packing & shipping .

Regards
Peter

Message édité par piotres le mardi 05 mai 2009 à 01:11:27
piotres


Membre
Messages : 369

dimanche 31 mai 2009 à 22:34:20     
Hello

Unit is already 100% completed :



Finaly, small cooper block after temperature (so also air temperature inside chamber) pumping hot air by hairdrier (30 min test) - start of test was from -43*C.



Big brass block after same test .



Then I start some real loadtests







































And that's all, unit is 93kg, total pack weight is 157 kg without palette . As You can see packing is heavy, but it must be heavy to be safe .

Regards
Peter
Asche


Membre
Messages : 103

dimanche 31 mai 2009 à 23:09:09     
Impressive !

It is a masterpiece !

Message édité par Asche le dimanche 31 mai 2009 à 23:12:43
Kanzen


Membre
Messages : 27

mardi 11 août 2009 à 18:14:37     
I'm wordless, man you're a genius, that's it I'm a fan. I would have like to know how a rig would perform inside though...
piotres


Membre
Messages : 369

mercredi 12 août 2009 à 23:03:35     
Thanks guys . It's not masterpiece - it's just cooling chamber, and I'm sure I'm not a genius , but it's nice to read such nice words .
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