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Scratch Build – In Progress Phase Changer RIG.

Discussion in 'Project Logs' started by rakesh_sharma23, 25 Aug 2011.

  1. rakesh_sharma23

    rakesh_sharma23 Member

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    So Here I am with first Test run of my Phase Changer unit.

    Yesterday evening I have started working on the Phase changer.. till 9 PM I am finished all fitting and ready to fill gas a test run..

    Since this is initial testing so I have not vacuumed the unit.. instead I have just flushed some gas through first and then just filled the R404a gas.. and started the unit.

    Initial temp was good but fine tuning the capillary placement in the evaporator.. I was able to reach
    -36C.. YES…COOL

    Turned off the unit let it heat up to the ambient temperature.. Now again started the unit to check time used to reach a temperature .. for ambient to -36c in just 3 minutes.. and power consumption is just 0.4 amp …
    (All analog and digital thermometer are calibrated in a Laboratory.)


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    Not tested with 200W- 220v AC of thermal resistance .. At full load for more than ten minutes temperature remains to -32C.. …
    Mind I have not vacuumed the unit (It takes about 2 + hours).. after that I hope to reach -40C.. will do vacuum afterwards.


    Now assembling the PC together and insulating the evaporator.. it’s 1am so should have a sleep now..

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    Will update more soon..
    Rakesh Sharma
     
  2. Angel OD

    Angel OD Pump Killer

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    Very nice build! Not many phase change mods in here! :)

    But are you sure the acrylic piece will hold up to the temperature changes in the evaporator? Just wondering, I don't want to see it shatter in there. :)
     
  3. rakesh_sharma23

    rakesh_sharma23 Member

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    Thanks Sir,

    I have tested the Acrylic piece under -20c inside a chiller unit for two or more hours.. and nothing happened...

    Anyway if any thing happens .. i will try some thing else then... meanwhile want to proceed with this .
     
  4. Angel OD

    Angel OD Pump Killer

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    That sounds promising! :)

    I've never used acrylic under those temperatures, so I was just a bit worried! :)
     
  5. rakesh_sharma23

    rakesh_sharma23 Member

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    Some More update...

    Insulated the mobo...(Still waiting for i7-2600K from RMA)..


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    Have to purchase a GFX.. and a good one...

    Hope all are enjoying the build same as me.

    Rakesh Sharma
     
  6. grritsshawn

    grritsshawn I'm not insane I'm a modder

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    why does building one of these from scratch just not seem safe to me?
     
  7. rakesh_sharma23

    rakesh_sharma23 Member

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    Driving a Car is also not safe.. even walking on a road is also not safe... but we all do it...
    So.. just enjoy the life man...
    I enjoy modding..
     
  8. j0rd

    j0rd FLOSS folder

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    no less safe than running the same hardware on a test bench but
     
  9. sparkyboy22

    sparkyboy22 Web Tinkerer

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    I've always been tempted to have a go at phase change but i've always been a bit scared!

    This mod doesnt make me feel any more confident!

    Great work, really impressed.
     
  10. Cookie Monster

    Cookie Monster Well-Known Member

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    Sorry to de-rail the thread a bit, but the surface area of the CPU block is larger than the CPU, what happens between the block and where it overlaps? Do you put something there to stop the cold getting to the motherboard or just leave it?

    Thanks
     
  11. rakesh_sharma23

    rakesh_sharma23 Member

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    Thermal Insulation sheet on back of Mobo and mobo Tray...
    Insultion clay filled around the cpu socket then a insulation steet layer above..
     
  12. Emil

    Emil New Member

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  13. rakesh_sharma23

    rakesh_sharma23 Member

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    Got New GFX and i7-2600k ...


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  14. Dragonphreak

    Dragonphreak Member

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    Your build is truly inspiring. Mod on!
     
  15. rakesh_sharma23

    rakesh_sharma23 Member

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    More Updates
    RAM Cooler

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    Adding Handles
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    Some Cable Managament..

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    Some OC..
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    Evaporator at -36c, CPU socket backside at -23c..

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    5.2Ghz. it was easy..

    Now have to refill the Phase changer for better temp..

    Will do more OC till Sunday..

    Rakesh Sharma
     
  16. Briaireous

    Briaireous New Member

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    Great mod :) cant wait to see how far you can overclock it! Keep it up
     

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