Empty refrigerator considered as being a closed
rectangular cavity
3.2.1.1. Heat transfer in an empty cavity: state of the art.
The simplest approach that can be used in order to
approximate the transfers inside an empty refrigerator
is to consider it as a rectangular cavity. Circular air
circulation is established, cool air close to the evaporator
moves downward and hot air in contact with the
door moves upward (Fig. 4).
In order to simplify the study, the exchanges inside