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Author Topic: Interesting cooling idea I found - (Steampunk fridge?...)  (Read 1015 times)
Siliconous Skumins
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« on: August 25, 2016, 06:58:19 pm »

Found this video, it is an interesting idea, though sadly very impractical and unlikely to work to any useful extent......BUT it is a GREAT idea for a Steampunk based fridge!  Grin

Heh, this would be really fun to do - maybe use a cheap "mini fridge" or other thermoelectric (Peltier element) based drinks cooler, and then modify the case to make it look as if the cooling is provided by giant rubber bands on spinning gears / cogs.  Somehow that just screams out to be an obvious cooling method for a Steampunk setting, and best of all the GEARS DO SOMETHING! (I wonder if Jinglejoe still reads this forum...)  Wink

OK here is the video:

A refrigerator that works by stretching rubber bands


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J. Wilhelm
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« Reply #1 on: August 25, 2016, 07:52:56 pm »

Very interesting video,  indeed!  The way he explained it was by way of entropy.  But being a little abstract, another way of thinking about it is that molecules like to be in a lower energy state (unstretched).  During the stretching process, you went against nature, and nature forced you to pay your "entropy tax", losing some of the energy stored in the rubber,  and radiating it to the universe (infrared radiation).  When you release the rubber, it goes back to its original state, but with an energy deficit, due to the entropy tax. Thus the band is cooler that it started.

Professor Skummins' Indian Rubber Cooling Machine.

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