title: Numerical simulation of transient temperature profiles for canned apple puree in semi-rigid aluminum based packaging during pasteurization.
abstract: Pasteurization of canned apple puree was simulated for a 3-D geometry in a semi-rigid aluminum based container which was heated from all sides at 378 K. The computational fluid dynamics code Ansys Fluent 14.0 was used and the governing equations for energy, momentum, and continuity were computed using a finite volume method. The food model was assumed to have temperature-dependent properties. To validate the simulation, the apple puree was pasteurized in a water cascading retort. The effect of the mesh structures was studied for the temperature profiles during thermal processing. The experimental temperature in the slowest heating zone in the container was compared with the temperature predicted by the model and the difference was not significant. The study also investigated the impact of head space (water-vapor) on heat transfer.
authors.affiliation: Department of Food Science and Technology, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, 81551-39998 Iran.
authors.forename: Soraya
authors.initials: S
authors.lastname: Shafiekhani
authors.affiliation: Department of Food Science and Technology, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, 81551-39998 Iran.
authors.forename: Nafiseh
authors.initials: N
authors.lastname: Zamindar
authors.affiliation: Department of Food Science and Technology, Shahrekord Branch, Islamic Azad University, Shahrekord, 88137-33395 Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Hojatoleslami
authors.affiliation: Departments of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Isfahan, 84175-119 Iran.
authors.forename: Davood
authors.initials: D
authors.lastname: Toghraie
keywords: Ansys Fluent 14; Apple puree; Mesh structure; Pasteurization; Slowest heating zone