[Stoves] Need help in designing a small refrigerator for rural hutscontinued.

[Alex English]

We have used a propane fridge at the summer place for 40 years. No 
moving parts, but its a beast, heavy and complex in its own way.

A friend of mine has trained his convective fridge to run only during 
the night when electrical power is cheaper. He has a pan of water/ice in 
the freezer (no food in the  freezer). A recycled heat exchanger with 
aluminum fins about .3 cm a part is half submerged and half in the air. 
During the 14hrs of off time the ice half melts the air is cooled and 
drops into the food compartment. The main compartment of the fridge has 
maintained a steady temperature as if it were plugged in all day. He is 
an engineer and actually calculated the required volumes and surface 
areas required.  It is a simple and improved ice box. He has a 'plan' 
for a chest freezer retrofit but admits it is not quite so simple and as 
yet untested.

Like Crispin, I'm chillin in Ontario,

Alex

On 18/01/2013 6:13 AM, Steve Taylor wrote:
>
>
> On 18 January 2013 10:04, mtrevor <mtrevor at ntamar.net 
> <mailto:mtrevor at ntamar.net>> wrote:
>
>     On and off for the last 5 years or so there has been interest in
>     the Thermo Electric Generators
>     TEGs to run say LEDs so it is surprising to me that there has not
>     been more attention placed on the
>     Thermo Electric Cooler TECs using a peltier chip. This type of
>     cooler has been commecially available
>     for years as the 12 volt Koolatron cooler.  It maybe that the
>     nominal 5 amp drawn is not efficient
>     enough. You can get far more cooling effect for the same 5 amps
>     through a 12 volt Adler Babour or
>     Novacool kit.
>
>
> Mechanical refrigeration is vastly more efficient than Peltier devices 
> unfortunately,
>
>
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