Author(s)

S Yanniotis & A Petraki

Abstract

A three-dimensional model was developed to calculate the temperature variation in a food sample of cubical shape placed in a freezer, where the air temperature fluctuates around a mean temperature due to the on-off action of the compressor in the freezer. The model was solved with the finite difference method and validated experimentally for a cube of ground beef. Results for the effect o f heat transfer coefficient, size of the cube, frequency of air temperature fluctuation and amplitude of air temperature fluctuation are also presented.

Keywords