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Sterilization of Food in Containers with an End Flat Against a Retort Bottom: Numerical Analysis and Experimental Measurements
Author(s) -
NAVEH D.,
PFLUG I. J.,
KOPELMAN I. J.
Publication year - 1984
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1984.tb12443.x
Subject(s) - retort , thermal conduction , container (type theory) , materials science , mechanics , penetration (warfare) , environmental science , waste management , composite material , mathematics , engineering , physics , operations research
The heating characteristics of a metal container (filled with a conduction heating food) heated with one end flat against a retort bottom was simulated numerically using the Finite Element method. Results of heat penetration tests in a laboratory retort and in a commercial crateless retort were compared to results obtained in computer simulations. It was observed that semilogarithmic heating curves are curved under the conditions described. It was also shown that the slowest heating zone moves towards the container bottom during heating. Heat flux, which is initially directed from the retort bottom towards the can, is reversed at long heating times; i.e., heat flows from the container to the retort bottom. Suggestions are given for the handling of this type of situation in commercial practice.