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Conductive Heat Transfer

Heat transfer by conduction


Thermal Elements

  • Conductive Heat Transfer block


The Conductive Heat Transfer block represents a heat transfer by conduction between two layers of the same material. The transfer is governed by the Fourier law and is described with the following equation:



QHeat flow
kMaterial thermal conductivity
AArea normal to the heat flow direction
DDistance between layers (thickness of material)
TA,TBTemperatures of the layers

Connections A and B are thermal conserving ports associated with material layers. The block positive direction is from port A to port B. This means that the heat flow is positive if it flows from A to B.


To set the priority and initial target values for the block variables prior to simulation, use the Variables tab in the block dialog box (or the Variables section in the block Property Inspector). For more information, see Set Priority and Initial Target for Block Variables.



Area of heat transfer, normal to the heat flow direction. The default value is 0.0001 m^2.


Thickness of material, that is, distance between layers. The default value is 0.1 m.

Thermal conductivity

Thermal conductivity of the material. The default value is 401 W/m/K.


The block has the following ports:


Thermal conserving port associated with layer A.


Thermal conserving port associated with layer B.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Introduced in R2007b