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Old 06-30-2008, 06:25 AM
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Default A new vision for refrigeration



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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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Old 06-30-2008, 07:27 AM
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Where do you buy them and how much are they?
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Old 06-30-2008, 07:38 AM
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Quote:
Originally Posted by oakr View Post
Where do you buy them and how much are they?
I don't know if they are in production yet.
Old 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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Old 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
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Old 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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Old 06-30-2008, 07:10 PM
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Quote:
Originally Posted by dilligaf View Post
sweet.. let us know if you find out or hear anything back from them...
From: "Adam Grosser"
> 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
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Old 06-30-2008, 07:13 PM
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Quote:
Originally Posted by Hedgehobbit View Post
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?
No water in the container and it will stay cold for 24 hours.
Old 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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Old 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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Old 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.
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Old 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.
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Old 11-20-2012, 10:50 PM
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Quote:
Originally Posted by awildchipmunk View Post
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.
did you or anyone else ever get word back from this guy?
Old 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
Old 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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