The thermocoax electric heater was modelled as a thick plane heat source with the same volume and the same power. The boundary and initial conditions are reported as follows:
- Convective heat transfer between fins immersed in temperature controlled cold water (Temperature T_water = 35 ℃ and heat transfer coefficient around 500 W m^(-2) K^(-1))
- Natural convective heat transfer with air (Temperature T_air=22 ℃ and heat transfer coefficient around 10 W m^(-2) K^(-1)) for the other boundary conditions.