Thermoelectric devices (or modules) require direct current (DC) for operation. Alternating current (AC), the form of electricity found in wall outlets, causes a thermoelectric device to alternate between heating and cooling, rendering it effectively useless. "Ripple" is the AC component of DC current and occurs when a power supply does not completely convert AC current to DC current.
You just might want to find out why the AC is not turning to the DC required, This could be a matter of chaning outlet plug or maybe the Ower pack that coverts the AC to DC.
Absolutely, every wine cooling system has to have a ventilation
system that will channel the heat generated in the operation, outside of the
unit, including the thermoelectric wine cooler.
A thermoelectric wine
cooler contains a cooling node. When an electric current passes through the
node the outside of the tile heats up and the inside of it cool down.
You will be spoilt
for choice. There are so many
thermoelectric coolers to choose from. I
found a few well-known brands for you to browse through.
http://www.nextag.com/thermoelectric-wine-cooler/compare-html
http://www.amazon.com/NewAir-AW280E-Bottle-Thermoelectric-Cooler/dp/B001DI5ALW
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