For some of us, the stock fan that came with our processor is good enough. For others (like me), I need more than that. This article is to enlighten us all about the myths of “peltier” cooling. Over the past couple of years, the peltier cooling method has become more and more popular. I know some readers wonder what a peltier is. Well follow along as I show you what it is and what it can do.
Before I continue, I would like to thank the following for allowing me to use graphics and excerpts from their own articles to help me produce this one:
Here is a technical overview of a peltier element.
A thermoelectric module consists of an array of Bismuth Telluride semiconductor pellets that have been ‘doped’ so that one type of charge carrier–either positive or negative–carries the majority of current. The pairs of P/N pellets are configured so that they are connected electrically in series, but thermally in parallel. Metalized ceramic substrates provide the platform for the pellets and the small conductive tabs that connect them. Thermoelectric modules can function singularly or in groups with either series, parallel, or series/parallel electrical connections.
When DC voltage is applied to the module, the positive and negative charge carriers in the pellet array absorb heat energy from one substrate surface and release it to the substrate at the opposite side. The surface where heat energy is absorbed becomes cold without moving parts, compressors, or gases; the opposite surface where heat energy is released, becomes hot. Thermoelectric modules can be used in a variety of applications– small laser diode coolers, portable refrigerators, scientific thermal conditioning, liquid coolers.
Peltier element
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