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 <[email protected]
<mailto:[email protected]>> 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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