[DanielMarques]

Hi,

I am trying to simulate the natural convection of an empty freezer.

I did various aproaches.

Basically I want to see what happens inside the empty freezer when the inside walls are at -20ºC and the outside at 25ºC (compressor working).
And then I also want to see what happens when we turn the compressor off. So I want to initialize the inside temperature of the air as -20ºC and the exterior wall at 25ºC so the chamber warms.

For that I was trying to use the shell conduction option with 2 layers. One for the aluminium and other for the insulation material and then the temperature of the wall as constant = 298K.

Am I going in the righ path?