期刊
JOURNAL OF FOOD ENGINEERING
卷 237, 期 -, 页码 183-193出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2018.05.019
关键词
Hydrofluidization; DEM; DPM; CFD; Food; Sensitivity analysis
资金
- Universidad Nacional del Litoral (Santa Fe, Argentina) [501 201101 00031 LI, 504 201501 00002 LI]
- Consejo Nacional de Investigaciones Cientfficas y Tecnicas (Argentina) [PIP 2015-2017 11220150100185]
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT) (Argentina) [2011-182, 2012-1413, 2015-365]
A sensitivity analysis was performed to study a hydrofluidization system, using a previous partially validated model that considers multiple fluid immersed jets and moving food spheres. The inputs were the average velocity of jets at the orifices (V), the refrigerating medium temperature (T), the distance between orifices (S), and the number of spheres (E). The outputs were the fluid and spheres velocities, the turbulence level, the dispersion level of the spheres, and the mass and heat transfer in the food. In general, the transfer phenomena in the fluid were mainly affected by E, S and V. In the food, the energy transfer was influenced by all variables, while its mass counterpart mainly depended on T. This study showed that a combination of computational fluid dynamics, a discrete element method and a discrete phase model is a simple but powerful tool to simulate food processing systems with relatively low computational requirements.
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