Fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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STUDY OF A HYDROFLUIDIZATION SYSTEM USING COMPUTATIONAL FLUID DYNAMICS AND A DISCRETE ELEMENT METHOD I: FLOW FIELD AND VELOCITY PROFILES

ORONÁ, J. D. ; ZORRILLA, S. E. ; PERALTA, J. M. ;

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ABSTRACT. Hydrofluidization (HF) is a method of chilling and freezing of foods that pumps a refrigerating liquid upwards through orifices into a vessel creating submerged jets and thus results in extremely high surface transfer phenomena. The objective was to model the flow field and the velocity profiles of spheres in a HF system using computational fluid dynamics and a discrete element method. The HF system consisted in a cylindrical vessel of 100‒mm diameter and 100‒mm height and a perforated plate with orifices of 3‒mm diameter. The samples were 13 potato spheres of 10‒mm diameter. The operative variables were temperature (‒5°C, ‒10°C), distance among the orifices (10 mm, 20 mm) and average velocity of the fluid at the orifices (0.59 m/s, 1.18 m/s). The results are promising to obtain relevant information about the momentum transfer and the dynamics of samples being processed within a HF system.

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DOI: 10.5151/chemeng-cobeq2014-1880-17063-179534

Referências bibliográficas
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  • [12] Acknowledgments This research was supported partially by Universidad Nacional del Litoral (Santa Fe, Argentina), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), and Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT).
Como citar:

ORONÁ, J. D.; ZORRILLA, S. E.; PERALTA, J. M.; "STUDY OF A HYDROFLUIDIZATION SYSTEM USING COMPUTATIONAL FLUID DYNAMICS AND A DISCRETE ELEMENT METHOD I: FLOW FIELD AND VELOCITY PROFILES", p. 5053-5060 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1880-17063-179534

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