Yakhchal: Ancient Refrigerators - How Persian Engineers Mastered Refrigeration

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    Jan 14, 2012 9:44 PM GMT
    I thought this was pretty cool. More details at the link. In a way it's also a bit sad how far some impressive civilizations have not advanced.

    http://www.eartharchitecture.org/index.php?/archives/1045-Yakhchal-Ancient-Refrigerators.html

    "By 400 BC, Persian engineers had mastered the technique of storing ice in the middle of summer in the desert. The ice was brought in during the winters from nearby mountains in bulk amounts, and stored in a Yakhchal, or ice-pit. These ancient refrigerators were used primarily to store ice for use in the summer, as well as for food storage, in the hot, dry desert climate of Iran. The ice was also used to chill treats for royalty during hot summer days and to make faloodeh, the traditional Persian frozen dessert."

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    Jan 15, 2012 1:21 AM GMT
    The amazon indians have ways of keeping the water cool in the heat... its quite simple... they make their pottery of a certain shape that keeps the volume large, the hole very narrow, so very little heat enters the pot somehow.. the type of clay they use must be important too.. master potters they are .. the American tribes...
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    Jan 15, 2012 1:45 AM GMT
    A large porous clay pot is just an evaporative radiator. You lose water over time pretty quickly though, and salts eventually clog the pores.

    Also, there are a lot of caves around the western US, and probably elsewhere that do that naturally. Full of ice in the middle of the summer. There are a couple just a few miles from my place. I can see how people might try to reconstruct such a thing closer to home.
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    Jan 15, 2012 1:51 AM GMT
    Very Interesting.
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    Jan 15, 2012 3:19 AM GMT
    Haha I was just reading about these and qanats online a week ago. Awesome.
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    Jan 15, 2012 3:20 AM GMT
    Those damn Iranians and Iraqis!
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    Jan 15, 2012 3:55 AM GMT
    TropicalMark saidThose damn Iranians and Iraqis!


    Thats apples and oranges!