Purpose of the Thermal Insulation in the cold room

The purpose of thermal insulation is to reduce undesirable thermal changes and to maintain the temperature of the outer wall of the enclosure isolated from the external environment, ie it is separate two different temperatures to avoid condensation problems (heat exchanges). The thermal insulation is formed by materials of low coefficient of thermal conductivity (k). The insulating materials are porous, and the high thermal resistance is due to the low thermal conductivity of the air contained in their voids. Heat transfer mainly occurs by conduction. In the void spaces convection and irradiation also occurs, but with negligible values.