Get Thermoelectric Cooling Systems Design Guide - Kazusru

Thermoelectric modules work on two different principals These types of modules are low amp (typically in the 6 amp range, running at 12V) and are designed for low temperature exposure of no more than 70°C to 80°C hot side.

The following steps are necessary when designing a thermoelectric cooling application: Estimate heat load of the object to be cooled. Define temperature working range of object and heat sink. Choose a Peltier element that satisfies the requirements. Choose a TEC controller with suitable power range.

Thermoelectric coolers/warmers don't cycle on and off, which means they are best operated while the engine is running. They can draw up to 4 amps continuously while operating off 12 volts.

The minimum temperature is -60C. Therfore, the maximum delta T is 380C. Using cold side Temperatures below 0C will yield lower and lower additional power gains as temperature decreases.

If you try to run a 50W thermoelectric cooler off a standard vehicle battery (without your vehicle engine running), you've just got 3 or 4 hours before you risk killing your battery.

It's worth noting that thermoelectric coolers don't have the same capabilities as a fridge. They can't get down to the same temperatures and cannot freeze items. They will cool to around 20 degrees below ambient temperature, or warm up to around 60 degrees above (depending on the model).

It is capable of temperatures that are about 40 degrees Fahrenheit lower than ambient temperature. This means, for example, that if your cooler is sitting outside on an 80 degree day, the coldest it can get is 40 degrees.