Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/12562
Título: | Simulation of stirred yoghurt processing in plate heat exchangers |
Autor(es): | Fernandes, C. S. Dias, Ricardo P. Nóbrega, J. M. Afonso, I. M. Melo, L. F. Maia, J. M. |
Palavras-chave: | Yoghurt Plate heat exchanger Flow and thermal distribution Computational fluid dynamics |
Data: | 2005 |
Editora: | Elsevier 1 |
Revista: | Journal of Food Engineering |
Resumo(s): | In the present work, simulations of stirred yoghurt processing in a plate heat exchanger were performed using computational fluid dynamics (CFD) calculations and the results compared with experimental data, showing a very good agreement. A Herschel–Bulkley model for the viscosity and an Arrhenius-type term for the temperature dependence were used to model the thermo-rheological behaviour of yoghurt. The heat exchanger used in this study operates in a parallel arrangement, thus simplifying the problem to the construction of a single complete 3D channel. After analysis of the velocity field and fanning friction factors, laminar flow was observed for all the operating conditions used and relations are proposed for the present heat exchanger between fanning factors and Reynolds number and between mean shear rate and mean velocity of yoghurt. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/12562 |
DOI: | 10.1016/j.jfoodeng.2004.08.018 |
ISSN: | 0260-8774 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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15.Simulation of stirred yoghurt processing in plate heat exchangers.pdf Acesso restrito! | 622,13 kB | Adobe PDF | Ver/Abrir |