Finite element model for beef chilling using CFD-generated heat transfer coefficients |
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| Authors: | Q.T. Pham F.J. Trujillo N. McPhail |
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| Affiliation: | 1. Department of Chemical Engineering, UFRN - University Federal of the Rio Grande do Norte, Campus Universitario, 59078-970 Natal, RN, Brazil;2. Department of Chemical Engineering, UFPB - Federal University of the Paraiba, Joao Pessoa, PB, Brazil;1. University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand;2. Massey University, Private Bag 11222, Palmerston North 4442, New Zealand;3. Hanoi University of Science and Technology, Hanoi, Vietnam |
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| Abstract: | A combined model of the beef chilling process is presented, in which computational fluid dynamics (CFD) was used to estimate the local heat and mass transfer coefficients, assuming uniform surface temperatures, and a set of 2-D finite element grids was used to solve the heat transfer equation in the product, which has an elongated shape. Another set of 1-D grids was used to solve the water transport equation near the surface of the meat. The surface transfer coefficients were calculated for various combinations of air orientations and speeds, and summarised in a set of regression equations. The model was verified by existing and new data on heat load, temperatures, weight loss and surface water activity. |
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