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Cooling down temps in my DIY Aeroponics unit with 100w peltier

Discussion in 'Aeroponics' started by c0rn, Jun 17, 2019.

  1. Hi all!

    I started a thread a while ago regarding my DIY Aeroponics/DWC build that can be found on the below link.
    Homemade low pressure Aeroponics/DWC hybrid

    The DIY box is working great except for the water temps. So the next part of the project is to cool down the water.

    I never have over 4 US Gallons (15 liters) in my res so I do not need a large cooler. So I am planing on building a Peltier 100w cooler. I know they are not the most efficient but for a small res they should be fine I hope and I only need to cool between 4-5C.

    I have ordered some parts of eBay and now I am waiting on the parts to arrive. I will be sharing my findings in case it works good and anybody wants to build the same =)

    Digital Thermostat Temperature Controller Red And Blue Display DC 12V 20A W3230 720643648147 | eBay
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    Peltier Thermoelectric Module Peltierelement 12V TEC1-12706 12708 12710 12712 | eBay
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    40x40mm Primary Aluminium Water Cooling Block For Liquid Water Cooler For PC CPU | eBay
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    2Pc 1m x 1.8m Self Adhesive 6mm Double Bubble Foil Thermal Insulation Camper Van, I will insolate the box and lid with this stuff and I am hoping this will help a little bit extra so I do not have to run the Peltier cooler all the time.
    2Pc 1m x 1.8m Self Adhesive 6mm Double Bubble Foil Thermal Insulation Camper Van 783101476140 | eBay
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    I already have a spare PC cooler that is rated for 150w cooling.
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    I also have a bunch of 12v 10-20a 120-240w power supplies at home.

    This should be fun =)
     
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  2. So I started building the "plate" that everything will be attached to today.

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  3. Looks good so far ;)
     
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  4. Once all the cables are in place it will not look nice anymore hehe :)
     
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  5. Dont matter what it looks like if it does the job ;)
     
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  6. Preach it brother =)
     
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  7. Thanks bro! Looks great so far. :cool:
     
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  8. Started a bit of work on the electrical part of the project today.

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    Also cut a hole in the lid for the digital thermostat.
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  9. What amount of water flow are you expecting to see, c0rn? I mean, as far as a flow rating, how much water can it cool and how long will it take to cool that much when you're done?
     
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  10. To be honest I am not sure, it's hard to find any numbers and actual proper testing from any other projects.

    So I will have to just test and document in hopes that it will help other people. I am not even sure this will work good at all. Keep finding loads of projects but no real numbers.

    Flow rates will be hard to know until I test the water block, I have done loads of custom built water cooling on PCs and flow rates can change loads depending on the water block.
     
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  11. I changed my mind a bit regarding this chiller. I ordered a Hailea HC100a that I will be using with my grow box for my girls.

    I will instead use this chiller with a future chili grow.

    Honestly I want to use something I built myself but I also want to make sure that I thoroughly test it first, once I have tested it and I am happy with the results I will use it in my tent. Currently I really need something that really works in my grow space :)
     
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  12. Small updates, waiting on some tubing that will fit on the water block. Still a bit of wiring to do. But getting there slowly :)

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  13. Any updates?
     
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