nearly stagnant far from the wall. Thus, the results for
convection around objects placed in a stagnant ambience
can be applied in order to estimate the time required
to cool food products. As example, an
experiment was carried out to cool a saveloy sausage
placed at the centre of a refrigerator without a fan. The
product had a cylindrical shape, the diameter (D) was
4.8 cm and the length was 10.5 cm. The initial temperature
was 20 C. The product had the following thermophysical
properties (Chourot, Lucas, Moreau, & Flick,
2000):
• density