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Thread: Cooling methods

  1. #9
    Stay chooned in for more! Clint's Avatar
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    whats peltier junction do? how does it work?

  2. #10
    Tony Paroubek's Avatar
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    I still don't believe peltiers are practical for a large sized uninsulated grow chamber. If you want serious cooling (15-20degrees below room temperature) it needs to be refrigerated as in refrigerator/freezer or a rigged up AC system.
    Is that a Nepenthes in your pocket or you just happy to see me?

  3. #11

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    They do make 400-1000 BTU thermoelectric air conditioners. These cost a bit, but are used in wine coolers and other temperature sensitive situations.
    Nick

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  4. #12
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    How much is a refrigerator cooling unit? Is that practical for a 5 by 5 by 3 foot grow tank?

  5. #13
    Nepenthes Specialist nepenthes gracilis's Avatar
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    Nick, we have those in the big soda cooler at work. I'd imagine they are PRETTY $$$

  6. #14

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    Dustin,

    They are $$$. I asked one of the pop(soda, to you East Coast people, lol) companies, and for a used condenser, they wanted about $250. I know nothing about electronics or refridgeration, but you can get a dorm room fridge for under $100. I got a six pack fridge at Toys R Us for $20. I am not sure if it will work, but I will find out.

    Joe

  7. #15

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    peltier junctions? evaporative cooling? Enlighten me please.

    THnaks,
    Craig

  8. #16

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    Definition of a peltier junction: Peltier Junction - When electrical current is applied to a thermocouple a temperature difference is created, with one side of the thermocouple being hotter than room temperature and the other being cooler. Peltier Junctions (Peltiers for short) can be used to cool microprocessors, where the cool side contacts the microprocessor and the hot side contacts a heatsink. Peltier Junctions are rated in watts. If you do not use the appropriate wattage a Peltier Junction will be ineffective.
    Basically a peltier junction is a heat pump, which pumps heat away from the body, hence reducing the temp. Quite a sophisticated piece of equipment.
    Just do a search on it and it will come up a ton of info and companies selling it.

    Evaporative cooling is when water takes heat away from a body to evaporate, thus reducing the amount of heat in the body and hence the temperature.

    Sourced from: Geek.com [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img] [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_m_32.gif[/img]

    Hope that helps,
    Jason

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