Thermoelectric Effect

Use this multiphysics coupling (

) to account for a Peltier heat source or sink in domains where electrical and thermal models are defined. This modeling is achieved by adding PJ contribution to the heat flux. The corresponding heat equation in an immobile solid reads

A node also adds the term −σS∇T to the current density, which is then defined as:


	The contribution to the heat flux affects all boundary conditions where the conductive flux, −k∇T, is involved. In particular the thermal insulation condition becomes (−k∇T + PJ) ⋅ n = 0 (instead of (−k∇T) ⋅ n = 0 when thermoelectric effect is not active).


	In 2D, the thickness used in the multiphysics contributions is the one defined in the electromagnetic interface.


	Theory for the Thermoelectric Effect Interface


	Thermoelectric Leg: Application Library path Heat_Transfer_Module/Verification_Examples/thermoelectric_leg

Settings

The is the default multiphysics coupling feature name.

The is used primarily as a scope prefix for variables defined by the coupling node. Refer to such variables in expressions using the pattern <name>.<variable_name>. In order to distinguish between variables belonging to different coupling nodes or physics interfaces, the name string must be unique. Only letters, numbers, and underscores (_) are permitted in the field. The first character must be a letter.

The default (for the first multiphysics coupling feature in the model) is tee.

Thermoelectric Properties

The default Seebeck coefficient S (SI unit: V/K) is taken . For enter other values or expressions.

Coupled Interfaces

This section defines the physics involved in the thermoelectric effect multiphysics coupling.

Select the interface associated to the temperature dependent variable. Select the interface associated to the electric potential dependent variable.

Location in User Interface

Context menus

when any of the following interface is added together with (or another version of the Heat Transfer Interface):