Fridge Powered By Cooking Fire

[Ponce]

All that I can find about this is "experimental".....where can I buy it?....you guys find out for me :)
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$25 Fridge Powered By Cooking Fire

December 16th, 2008 by mark
Along the lines of one laptop per child comes the idea of an inexpensive refrigerator that could help more than a billion people who have no access to electricity. Lack of access to refrigeration is a problem for people in underdeveloped countries; without refrigeration, it’s hard to prevent the spread of food borne disease, and it’s impossible to store vaccines.



Tech venture capitalist Adam Grosser, working with a thermodynamics team from Stanford, may have a solution. The prototype zero-emission fridge doesn’t need gas, propane or kerosene and is powered by regular fire.



The eight pound device looks like a thermos and contains a (nontoxic) refrigerant fluid. It can be heated on a cooking fire – the kind fueled by the likes of wood or camel dung. After being heated on the fire, the device is set aside to cool for an hour. At that point it begins to grow cold, and it is inserted into an insulated container of some sort – a jug, or even a hole in the ground. It gets colder and colder, bringing the temperature of the container to just above freezing, and keeping it that way for about 24 hours.



The low pressure, non-toxic refrigerator is also fairly affordable. At low volumes, Grosser estimates each unit will cost $40. At high volumes, the price for each will drop to $25. Esquire Magazine just named the fridge one of the best and brightest ideas of 2008. Refrigeration for the masses is now closer to reality.

[vacuum]

That's from 2008, I wonder if they hit the market yet.

[Ponce]

That's why I was asking......a good that works (alredy made one) is the one with the small clay pot inside of a larger clay pot with sand inside between the small and the largerr clay pot, keep the sand wet and the mouth of the smaller one covered.

[Neuro]

http://en.wikipedia.org/wiki/File:Icy_ball_top.JPG

It is probably a version of this:

http://en.wikipedia.org/wiki/Icy_Ball

[Ponce]

Noped, like a thermo bottle about twice the size........nothing fancy about it.......just don't leave it on the fire for ever, just till it gets hot.

First post of the day..........good morning to one and all.

[Neuro]

I meant the principle was similar. Good morning Ponce, did you sleep well?

[Dogman]

Something along the line of propane RV absorption refrigerators and a.c units. If there is a fire burning all the time , why not use the energy?


http://en.wikipedia.org/wiki/Absorption_refrigerator

[Ponce]

I meant the principle was similar. Good morning Ponce, did you sleep well?

Not really, that's why I got up so early.........7 am is early for me hahahaahhahah........going back to be right now.

[hoarder]

Something along the line of propane RV absorption refrigerators and a.c units. If there is a fire burning all the time , why not use the energy?

http://en.wikipedia.org/wiki/Absorption_refrigeratorThat's what kind of fridge I have in my house. I think the key to making these work off woodstove heat would be to have a thermostatically controlled diverter so you would only heat the refrigerant when needed. Another issue would be keeping a distance between woodstove and fridge.

[Dogman]

I think someone good working with tubing, and has the ability to save and/or recharge the refrigerant could move the heat coils to the stove, and as you said using a thermostatic controlled damper/diverter to regulate the frig's temp. I think it can be done, I know I could rig up something that would work. But would need a stove/heat source, that stays hot all year or summer. Winter, hell in your area, all you need is a box that uses all of that outside free cold.