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06-30-2008, 06:25 AM
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A new vision for refrigeration
Spotted this and couldn't find it on the boards.
I'm thinking it could be handy to have if you don't have electricity, wouldn't mind getting a of a couple of them. I wonder if you could heat them in a solar cooker? 
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| The Following 7 Users Say Thank You to awildchipmunk For This Useful Post: | ||
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06-30-2008, 07:27 AM
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Where do you buy them and how much are they?
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| The Following User Says Thank You to oakr For This Useful Post: | ||
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06-30-2008, 07:38 AM
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06-30-2008, 07:54 AM
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Adam Grosser is a general partner at Foundation Capital -- and a refrigeration visionary.
Found his web address and sent him an email. |
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06-30-2008, 02:20 PM
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I made a post on here a while back called "Ice from the Sun,"
check it out. Also plans for Icy balls are all over the place :http://crosleyautoclub.com/IcyBall/H...HomeBuilt.html |
| The Following 2 Users Say Thank You to Wulf23 For This Useful Post: | ||
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06-30-2008, 03:44 PM
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His demo confused me. He said that you place the thing into a bucket of water and it kept the water cold for 24 hours (and only cooled for 1 hour if not in a bucket of water). Can you only keep food cold if you can put the food into a bucket of water?
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| The Following User Says Thank You to Hedgehobbit For This Useful Post: | ||
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06-30-2008, 07:10 PM
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Quote:
> Thank you so much for writing - it is not yet available commercially. > We are still working to ensure that it meets all safety and performance > goals. > > Adam I sent him another email These would be very useful, when do you foresee the refrigeration units being on the market, I would be interested in being put on a list for updates or notification for when they are. Thank you Tammie |
| The Following User Says Thank You to awildchipmunk For This Useful Post: | ||
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06-30-2008, 07:13 PM
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07-01-2008, 04:00 AM
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He emailed me back, he said they were looking at about a year before they are on the market. I'm going to keep track of this, if it does what he says, I want one.
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| The Following 2 Users Say Thank You to awildchipmunk For This Useful Post: | ||
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07-07-2008, 04:02 AM
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Patented in 1930 by none other than...
http://www.fourmilab.ch/etexts/einst...ww/Lpage2.html  Watch your tongue, Al, don't get it frozen to an icy-ball!!! 
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| The Following User Says Thank You to fshx20 For This Useful Post: | ||
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07-26-2008, 02:06 AM
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Years ago I toured the Amana Colonies and I saw an original working ammonia refrigerator.
It used a steel u shaped canister with ball shaped ends, my understanding of the way it worked was the ammonia was in one end of the canister which would hang out the side of the refrigerator, the room air temp would heat the ammonia enough that it would evaporate and transfer to the inner part of the refrigerator (the other end of the canister) and refrigerate the inside. A person would have to flip the canister around (ball shape on the inside would move outside and vice verse) the process would start all over again no electricity or large heat source needed. But as the gentleman said in the video the ammonia is dangerous. I work on transport refrigeration units and I really don't know why this wouldn't work with the modern freons we have now and not be dangerous. This will definitely give me something to check into. |
| The Following User Says Thank You to tkrebuilder For This Useful Post: | ||
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07-26-2008, 01:38 PM
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HEDGEHOBBIT - He didn't say bucket of water, he said container.
tkrebuilder - The problem, as I understand it, vs ammonia is the vapor point vs boiling point and at what pressures this happens at. Another factor is cost. There are other really cool liquid-vapor materials, like NOVAK 1320, but it boils at too low of a temperature to yield a good enough cooling effect. NB* I am not a scientist and I don't claim to know the particulars of thermodynamics, but I did research replacing freon in a refridgerator with other materials, and the match didn't work. OR it was something that was $1,000 or more a liter. |
| The Following 2 Users Say Thank You to Rutger For This Useful Post: | ||
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11-20-2012, 10:50 PM
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11-20-2012, 11:20 PM
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Yeah I saw this vid several years back . . . unfortunately like most super-awesome ideas by visionary people these days, it has never come to fruition
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11-20-2012, 11:22 PM
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there is a guy on youtube that converted a propane refridgerator to a wood burning unit. It's pretty neat.
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