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Finite element computer simulation of oxygen diffusion in packaged liquids
Author(s) -
Barront F. H.,
Harte B.,
Giacin J.,
Hernandez R.,
Segerlind L.
Publication year - 1993
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/pts.2770060607
Subject(s) - finite element method , diffusion , radius , materials science , oxygen , liquid oxygen , polyethylene , container (type theory) , mechanical engineering , computer science , composite material , engineering , structural engineering , thermodynamics , chemistry , physics , computer security , organic chemistry
The objectives of this study were to apply the finite element method (FEM) to the computer simulation of oxygen diffusion in a liquid food system contained in a permeable package, and to apply a mathematical lumped method to evaluate the integrity of a permeable package. The cylindrical package (2.425cm radius) was made of polyethylene (2 mil) with solid acrylic at the top and base. A micro‐oxygen electrode was introduced from the top surface, 1.37 cm from the radial wall. Changes in dissolved oxygen were recorded using a data acquisition system. Experimental data were compared to predicted values obtained using a finite element technique computer model (Engineering Analysis Systems Verification and Theoretical Manuals, Swanson Analysis Systems, Inc., Houston, PA). Acceptable predictions were obtained for two systems: a cylindrical permeable package and a semi‐infinite impermeable container. The model can be modified to simulate other geometrical configurations, packaging materials and liquid food systems.