Home made chiller

Discussion in 'Anything DIY Related' started by dallasg, 28 Jan 2009.

  1. dallasg

    dallasg Moderator MASA Contributor

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    hi,

    my tank is running at a constant 27° and was thinking of ways to cool it down, so while staring at my pc, which is water-cooled, if added added a separate pump to the sump, say 400l etc and i passed the tube thru an aluminium block with a fan, like a heatsink think it would work? or would having pc fans blowing over the sump be better?
     
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  3. Apollo

    Apollo

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    Dallas,

    Yes, it would work , but IMO you would get a better cooling effect if you have a fan blowing directly onto the water surface.

    Passing your water through a tube on a heatsink yields indirect cooling, which will lower the temp, but only slightly.

    BTW: Why do you want to lower the temp ? 27 Deg is not high.
     
  4. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    cool, i just ordered 6 80mm fans for my hood

    thats without anylights, and my mh will be mounted this week...

    ps. will be at you around 6ish
     
  5. Apollo

    Apollo

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    One more thing Dallas :

    If you were going the heatsink route, your flow rate would need to be fairly slow.
    You want the water in the tube to have maximum contact time with the heatsink for efficient heat exchange.;)
     
  6. Apollo

    Apollo

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    6 is perfect. I should be home by 17h00 latest.
     
  7. Kanga

    Kanga Retired Moderator MASA Contributor

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    Yes, at ambient temp evaporative cooling will be much more effective.:thumbup:
     
  8. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    thanks, will go the fan route :) might also help with the mh not cracking my tank again
     
  9. Apollo

    Apollo

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    Eish !

    Yeah , you don't wan't that happening again :(
     
  10. jacquesb

    jacquesb Retired Moderator

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    Dallas - letting a fan or 2 blow over your algae scrubber (if you are going to build one like SantaMonica's) will also assist greatly in ensuring that your tank's water stays cooled down....
     
  11. Tony

    Tony

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    A tank temp of 27 degrees is perfectly OK. No need to worry there. Worry if it starts hitting 30 degrees
     
  12. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    yip :) its huge
     
  13. FransSny

    FransSny

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    good 4 me i read your post and the replies...i had a similar idea, wanted to hook up a zalman cooler!
     
  14. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    hehe, i was using the heat sink from mine :)
     
  15. FransSny

    FransSny

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  16. Mtroboer

    Mtroboer

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    Yip, I build a scrubber a while back and mounted a 220v PC server fan to blow directly onto my screen(80% shading) and it maintains the water at a constant 25.5-26 degrees, even with a 33 degrees measured temp outside the tank! Cheap and effective!:thumbup:
     
  17. Tom

    Tom

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    I can also vouch for the fan cooling, got a Papst 150mm 220V fan blowing into the sump and the sump cover forces the air to flow from the one side to the other. Very powerful, but causes high RO use. My fan is controlled by a thermostat that has a sensor in the water. In my case it is just used for high temp days as it is set to come on at 27.9 deg.
     
  18. mnd123

    mnd123

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    I put a 110mm wall mounted toilet extractor fan into the wall of my cabinet - this drags the air from my study (which has AC) through over the sump - I have a constant 26 degrees
     
  19. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    i am going to add the fans this week, bought a huge fan from makro as well, like a freaking jet plane to keep the air moving while i am at work, its the afternoon sun that hits my place and warms it, but atleast i know the temp is constantly at 27°
     
  20. Tobes

    Tobes Retired Moderator

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    Just remember to have good surface movement in the tank for max gas exchange incase the temp goes up to ensure your live stock will have enough oxygen ;)
     
  21. dallasg

    dallasg Thread Starter Moderator MASA Contributor

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    got plenty in sump and tank surface
     
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