Abstract
The analytical solution of the problem involving a change of phase with convection at the surface is very difficult. Previously, heat conduction problems with a change of phase (called Neumann''s problem) have been solved. The concept may be used to obtain analytical solutions for a semi-infinite solid and an infinite cylinder in the freezing of foods.
This paper presents an analytical Stefan-type solution for a cylinder with convection at the surface and experimental results of the temperature distribution, fusion front moving and the time required to freeze a cylinder in the freezing of cylindrical food stuff.
