This model distinguishes between internal
  thermal masses and exterior walls. While exterior walls contribute to heat
  transfer to the ambient, adiabatic conditions apply to internal masses.
  Parameters for the internal wall element are the length of the RC-chain
  nInt, the vector of the capacities
  CInt[nInt] and the vector of the resistances RInt[nInt].
  This approach allows considering the dynamic behaviour induced by internal
  heat storage.
  
The image below shows the RC-network of this model.
   
  
massDynamics.alphaInt to hConInt,
alphaIntWall to hConIntWall