Peltier characterization.

The basic concept behind thermoelectric cooling is the Peltier effect. The Peltier effect occurs whenever electrical current flows through two dissimilar conductors; depending on the direction of current flow, the junction of the two conductors will either absorb or release heat.

Modelling the dynamic behavior of such a TEC (thermoelectric cooler) or Peltier module, can be a tricky thing.






  • Peltier dynamic modelling
  • combining physical relations with COTS datasheets
  • predict system behavior

modelling COTS Peltier elements.

At Demcon kryoz, we developed a fully dynamic Simulink LEM model of a thermoelectric cooler. This model combines the fundamental physics of the Peltier module with actual specification data of various commercially available Peltiers. This makes it possible to dynamically model the behaviour of a very specific Peltier in a (often complex) thermal system. This can pin point the bottlenecks of the entire heat transport line from the thermal energy pick-up over the cold-side interface all the way to where the heat is dumped to the environment.



“using the power of LEM”

Using a lumped-element-modelling method, to predict the behavior of complex thermal / fluidic systems can be very powerful. In the case of modelling Peltier elements, for us, this is a proven case. Our in-house developed thermoelectric cooler modelling blocks have shown their value many times in various projects where Peltier elements are used to the maximum of their ability.