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Thread: Solar Cooling

  1. #1
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    Solar Cooling

    Not sure how it works but I stumbled onto these guys today while walking.
    SIAM GREEN POWER International Co.,Ltd.

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    Mr Elgan Voigtmann Talked to him 1 time in Bangkok All big talk from him.
    Sent him a email another time never return a email to me.

  3. #3
    watterinja
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    They seem to have some interesting ideas.

    Their cool-wall concept looks nice, although they need to change their terminology, as radiation heat-transfer does not occur in any significant amount at such low temperatures. It is really a cold-wall convective effect they are using. Never-the-less, an interesting concept.

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    Member The_Dude's Avatar
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    They better design a very efficent and effective condensation system to remove all of the moisture those coils are going to collect around the tubes this may work in a less humid enviroment. They will get black mold build up which will give them a SBS also IDAQ will drop dramatically if this occurs. And as far as less energy used that will depend on weather you will still have ventilation for 2 reasons 1) air filtration and 2) allowing fresh OSA into the occupied space for C02 control. And, on initial start up the the amount of BTU's removed from solid materials will be much greater then air so the compressor will have to work harder. Alot of variables to consider if this system will operate to the customers needs.
    All people have photographic memories, the problem is most people don't have film!

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    Quote Originally Posted by The_Dude View Post
    They better design a very efficent and effective condensation system to remove all of the moisture those coils are going to collect around the tubes this may work in a less humid enviroment. They will get black mold build up which will give them a SBS also IDAQ will drop dramatically if this occurs. And as far as less energy used that will depend on weather you will still have ventilation for 2 reasons 1) air filtration and 2) allowing fresh OSA into the occupied space for C02 control. And, on initial start up the the amount of BTU's removed from solid materials will be much greater then air so the compressor will have to work harder. Alot of variables to consider if this system will operate to the customers needs.
    Ok would you mind translating that into English? SDS? IDAQ OSA etc

    thanks

    Bar Dog

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    Member The_Dude's Avatar
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    /\/\
    Sorry about the acronyms.


    IDAQ or IAQ- Indoor Air Quality.
    OSA- Outside Air.
    C02- Carbine Dioxide.
    BTU- British Thermal Units.
    SBS- Sick Building Syndrome.

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    Quote Originally Posted by The_Dude View Post
    /\/\
    Sorry about the acronyms.


    IDAQ or IAQ- Indoor Air Quality.
    OSA- Outside Air.
    C02- Carbine Dioxide.
    BTU- British Thermal Units.
    SBS- Sick Building Syndrome.
    CO2 and BTU I knew but the rest were outside of my knowledge. The reply now makes a lot more sense and I can see what you mean. Part of me is thinking "and the chances of someone getting this right in Thailand are ......?"

    Thanks for the clarification

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    Although not building a house ( resort style villa when I do) I am curious to know how one cools using the sun. Would it be the same principle as the old gas refridgerators? Their website doesn't expand on that point.
    The other thing I was wondering is would it be beneficial to build pipes into the wall and circulate the swimming pool water through it. At least at my friends house the pool is way too cold for me so in that case the whole structure would be cool.
    As for condensation there must be a delta threshold at which condensation starts.
    Is there enough delta at night to blow ambient air through the pipes to cool the whole structure. (where is the kite flying smiley?)

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    My immediate concern with all those water pipes in the walls and ceiling is what happens if it springs a leak? One envisages major damage...



    Oh and a bit late for BH but he was looking for a solar pump


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    Why take the water from a well as the water temp 20c.
    Why not just have a solar powered cooling tower,Im sure it would be cooler than 20c

  11. #11
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    Damn, I forget all the tech. stuff but with the high humidity in Thailand cooling tower efficiency is noy that good. I remember because at Thai Copper we had to use quite large ones to get down to the temp we required and it wasn't that low.

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    Member The_Dude's Avatar
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    /\/\ VN is correct in his thinking. High Humidity in LOS will require a large media Cooling Tower and the fans will have to run at a high speed! Not very efficient. And as to your question about the refrigerator. Are you talking about the ammonia filled ones with a flame (Small Absorbtion Unit) ?

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    Quote Originally Posted by VocalNeal View Post
    Damn, I forget all the tech. stuff but with the high humidity in Thailand cooling tower efficiency is noy that good. I remember because at Thai Copper we had to use quite large ones to get down to the temp we required and it wasn't that low.

    VocalNeal
    Are you thick or what
    What temp was the machinery you were trying to cool down 150c
    Mr Elgan Voigtmann Siam Green Power Is the person that you stumbled when you where walking you ask him groundwater temp.
    I know that it is 20C how the f ck is 20c going to cool the house.
    After the water goes through the pipes in the wall & floor you can take a hot shower

    Not sure how it works but I stumbled onto these guys today while walking.

  14. #14
    Newbie Vansana's Avatar
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    @Ratcha
    All you need is a Geothermal heat pump and this little device gives you at a inlet temperature of 20C, a nice cooling flow of 7C

    Isn't technologie wonderful!

    Greetings
    Vansana
    Last edited by Vansana; 06-01-2008 at 06:41 PM. Reason: tried to add a URL...but cannot

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    Quote Originally Posted by Vansana View Post
    @Ratcha
    All you need is a Geothermal heat pump and this little device gives you at a inlet temperature of 20C, a nice cooling flow of 7C

    Isn't technologie woderful!

    Greetings
    Vansana

    A heat pump is used to heat up the water in the swimming pool.
    I think the name you were looking for is Airconditioning

  16. #16
    Newbie Vansana's Avatar
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    Geothermal heat pumps are able to reverse the process of heating our homes, to the process of cooling them. This is quite simply a reversal of which way the water flows.

    Believ it or not!
    i give up

  17. #17
    watterinja
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    ^ At what price?

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    Quote Originally Posted by Ratchaburi View Post
    Quote Originally Posted by Vansana View Post
    @Ratcha
    All you need is a Geothermal heat pump and this little device gives you at a inlet temperature of 20C, a nice cooling flow of 7C

    Isn't technologie woderful!

    Greetings
    Vansana

    A heat pump is used to heat up the water in the swimming pool.
    I think the name you were looking for is Airconditioning

    This is a heat pump with and outdoor coil submerged in the earth to either release heat or absorb cooling (to be simple) depending on weather you are in heating or cooling mode. Also they diagram has a heat exchanger for domestic water usage as well. This type of system works well in an if it is placed in an appropriate area. Pricey install aswell!


  19. #19
    Newbie Vansana's Avatar
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    Thank's Dude, that is a really nice diagram.

    Anybody would now how much such a szstem would cost in LOS?
    I know in Europe the price might be up to 10.000 Euros.

    Greetings Vansana

  20. #20
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    VocalNeal
    Are you thick or what?
    I'm as thick as two short planks mate when it comes to thermodynamics.

    I was just aluding to the fact that cooling tower efficiency is a factor of wet bulb temperature. Here in LOS the wet bulb temperature is relatively high compared to the dry bulb. So I don't think a cooling tower powered by solar energy would be big enough to get down to the 20 deg you get from ground water.

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