Micro-perforations: predictive modeling of oxygen transmission

Knowledge of oxygen transfer through perforated packaging and oxygen distribution in packages is necessary for successful packaging of fresh produce. Researchers at the University of Florida US developed an approach to modeling perforated packaging performance.
They found that accurate predictions required use of an effective diffusion length through the perforation that is longer than the thickness of the perforation. Estimating diffusion through a micro-perforation gave a reasonable approximation. Discretization of the perforation gave more precise results, but at the expense of complexity and cost. An article about the research is published in the Journal of Applied Packaging Research.
Click here for the article (565 kB).

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