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Thread: Chilled water (56K beware)

  1. #1
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    Chilled water (56K beware)

    I finally got my water chiller up and working
    here are some pics
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    Last edited by water_cooler 20; 01-06-2004 at 05:25 PM.

  2. #2
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    my res is only alittle less then half full because i a leck in it that i'm fixing
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    my sys composes of a
    1/6 HP R12 compressor taken from my old frige
    running R22
    Condensor taken from same frige
    Res mini iglo playmate
    50-50 antifreeze and water mix

    hi-side 150
    low side about 5 in hg

    i will post temps when i fill my res

  4. #4
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    Looks nice but isint it a bit large and messy?
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    right now its alittle messy but i'm making a box for it so it could put it under my computer
    if u look at my rig its in a box so i just need to do some work and hopfully i will be chilling my rig soon

    Also i think my antifreeze isn't keeping up w/ the cold what should i replace it with
    Last edited by water_cooler 20; 01-01-2004 at 04:59 PM.

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    Originally posted by water_cooler 20
    right now its alittle messy but i'm making a box for it so it could put it under my computer
    if u look at my rig its in a box so i just need to do some work and hopfully i will be chilling my rig soon

    Also i think my antifreeze isn't keeping up w/ the cold what should i replace it with
    Wow!! That thing works?Grats man you got some frost!
    You got a bit of work to do yet. I wouldn't rush it. I agree It looks like something you hacked together. First, I wouldn't try to patch the leaks. I would replace the res without any holes in the bottom this time.I'm assuming you put the holes in there for the pump can't really tell from the pictures.Patching the holes just sets you up for more leaks later and it's just as easy to replace and do it right. Keep all holes above your coolant level. Get your condensor off the floor so you can get some airflow.I'll let Gary or someone else critique the the finer points as I know very little about it. I do have experience with coolant and have tried several combinations of water, antifreeze, windshield washer fluid,and methanol, I have found that methanol and antifreeze about a 50/50 mix works best for me.
    Last edited by jamaljaco; 01-01-2004 at 07:53 PM.

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    I use windshield wiper fluid I got 6 gallons for like 6 bucks. Works down to -20F... I lost alot in a spill and evaporation...
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    I think my water was close to -40C for a few min but then i want to the bathroom than came back and bang i had a res filled with a block of ice
    so a 25%methanol 25%antifreeze 50%water mix would fix my ice problem

  9. #9
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    Wow nice chiller you got there than
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    Originally posted by afireinside
    Wow nice chiller you got there than
    That what said when i saw that block of ice

    But I have to thank Gary for helping me size my cap tube

    My 1st cap was 6ft of .026 and my waterchiller would barly get to -20C and it would take 5hr to do that
    and now thanks to gary i'm using 5ft of .032 and now i can get to -40C in less than a half of a hr

  11. #11
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    Originally posted by water_cooler 20
    I think my water was close to -40C for a few min but then i want to the bathroom than came back and bang i had a res filled with a block of ice
    so a 25%methanol 25%antifreeze 50%water mix would fix my ice problem
    NO it WONT! not @ -40 c lose the water! you dont need it and it freezes @ 0-c and those temps will slush your antifreeze Sooo, try 50/50 mix of methanol and antifreeze no water and see what happens.

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    ...ummm..congrats on the frostiness inside your res...good job on getting it going. Couple of observations on my part though,,the fans look like they are facing the wrong way, they need to blow through the condensor to help dissipate the heat so that it can turn back into a liquid. I agree with JamalJaco that you need to get your condensor some better airflow. Perhaps some dif pix would show us more detail of how you have it set up.
    Also,,,what kind of temps are you getting? If you want to get it colder, you really need to lose the water in your coolant mix, it will only freeze and make it slushy, thus making your pump work harder( which will also generate more heat into your system, which you dont want). If its slushy, it wont pull the heat away from your cpu as well (im sure you already know this stuff ) Anyway, try a really good antifreeze which can take those really low temps, get rid of the water, and try adding like a good winter windshield wiper fluid. Good Luck and keep posting those pix. Can't wait to see it all finished and going!
    Last edited by GeekGoddess; 01-01-2004 at 08:38 PM.

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    antifreeze sucks its thick and has bad heat transfer.

    There is alot of info supporting this.

    get the WW fluid and add in some more methanol 50/50 mix water and Methanol should solve your problem.



    thats one chart to see more info goto this link very nice thread

    http://www.ocforums.com/vb/vb/showth...threadid=39039
    Last edited by iboomalot; 01-01-2004 at 08:33 PM.
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    I have my fan so they suck the air out of the condensor

    but if u guys think i will get better temps when the fans are blowing I will make them blow

    does anyone know were i can get Methanol
    also what safety precautions should i take when working with
    Methanol

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    make sure your res. is sealed up tight, and its a form of alcohol so shouldn't be too dangerous. Its what they put in WW fluid to help clean and keep the WW fluid from freezing in your car.

    handling it shold be fine just don't inhale it too much unless you like that kind of thing
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    i just looked at dabit's website and it says
    If you consider using methanol in your own system:
    YES! It is toxic.
    YES! It CAN and WILL kill or at least harm you when not handled carefully.
    YES! Pure methanol is extremely flammable, and burns with an invisible flame.
    NEVER! work with the liquid without proper precautions.
    :
    methanol is a very toxic substance which can cause blindness and death. Because methanol molecules are very small, the liquid will diffuse right through the skin when you spill it over your fingers. Looks like a no-go? Well, further research showed that the MAC (Maximal Allowable Concentration) values for methanol in air and methanol per kg of body mass are quite high. Normal precautions such as working in a well ventilated area, using latex gloves and protective eyewear when working with the liquid are sufficient to keep you out of the danger zone.
    i guess i will have to be very careful w/ this stuff

    do auto part shops carry methanol

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    Originally posted by iboomalot
    make sure your res. is sealed up tight, and its a form of alcohol so shouldn't be too dangerous. Its what they put in WW fluid to help clean and keep the WW fluid from freezing in your car.

    handling it shold be fine just don't inhale it too much unless you like that kind of thing
    Btw . See the skull and bones on the label, This stuff can kill you!Anyway you can find it in just about any paint department in any diy store.
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    Last edited by jamaljaco; 01-01-2004 at 09:10 PM.

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    also while looking at dabit's site i noticed on his colant chart it shows that stright hydrogen proxide can go down to -47C
    would thsi be a better choice since i know were i can get this and
    its not that dangerous to my knowledge

    u can see the charts at
    http://www.icecoldcomputing.com/index.php
    go to articles and click on "About secondary coolant"
    Last edited by water_cooler 20; 01-01-2004 at 09:16 PM.

  19. #19
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    Originally posted by water_cooler 20
    also while looking at dabit's site i noticed on his colant chart it shows that stright hydrogen proxide can go down to -47C
    would thsi be a better choice since i know were i can get this and
    its not that dangerous to my knowledge

    u can see the charts at
    http://www.icecoldcomputing.com/index.php
    go to articles and click on "About secondary coolant"
    Realy ? where can you get hydrogen proxide? that isn't mixed with water?
    Last edited by jamaljaco; 01-01-2004 at 09:47 PM.

  20. #20
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    i was going to just go to wallgreens
    i didn't know they mixed it w/ water
    could i still use it

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    hydrogen peroxide as a coolant? now u gotta be crazy...

    http://www.orcbs.msu.edu/newsletters...zmatreport.htm

    I'd go for denatured ethanol....

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    Originally posted by water_cooler 20
    i was going to just go to wallgreens
    i didn't know they mixed it w/ water
    could i still use it
    I wouldn't the stuff i have here @ home is only 3% the rest is water. I was just reading Dabits stuff also and I think I agree that 35/65 water/methanol is the best solution go to a home depot or something and get a couple cans of that methanol the S-L-X- stuff in the pic above but we still need some kind of anti corrosion inhibitor like in your anti freeze
    Last edited by jamaljaco; 01-01-2004 at 10:15 PM.

  23. #23
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    The problem with most windshield washer fluid is it doesn't have enough methanol usualy around 25 to 45 percent the rest is detergent and water if you mix your own you have more control over the ratio.Thus adjusting for your temps.

  24. #24
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    Originally posted by Ragnarok
    hydrogen peroxide as a coolant? now u gotta be crazy...

    http://www.orcbs.msu.edu/newsletters...zmatreport.htm

    I'd go for denatured ethanol....
    yea believe it or not look at the chartshttp://www.icecoldcomputing.com/index.php

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    This is my methanol chiller. It's not being used at the moment. It's sitting in the garage collecting dust.













    All the guy at phase change helped me with this.

    Gary ,DaBit, bowman, Redwolf, and several others.

    As I recall the resevoir holds 4-5 gallons of pure methanol.

    Maybe this will give you some ideas.
    UNDER THE ICE .com
    Phase Change Cooling

    is the remedy

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