Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/5579
Título: Influence of large solid spherical particles on the residence time distribution of the fluid in two-phase tubular flow
Autor: Baptista, Paulo N.
Oliveira, Fernanda A. R.
Cunha, Luís M.
Oliveira, Jorge C.
Palavras-chave: Aseptic processing
Flow analysis
Particulate fluid foods
Data: 1995
Editora: Wiley
Citação: BAPTISTA, Paulo N....[et al] - Influence of large solid spherical particles on the residence time distribution of the fluid in two-phase tubular flow. International Journal of Food Science & Technology. ISSN 1365-2621. Vol. 30 n.º 5 (1995), p. 625-637
Resumo: The effect of large solid particles on the residence time distribution of the fluid in two-phase flow was studied in a pilot scale continuous tubular system. The residence time distribution was characterized with four parameters: the normalized minimum and mean residence time, the normalized standard deviation and the skewness. The effect of particle concentration (1 and 3%) and particle diameter (diameters approximately 0.3 and 0.4 of the tube diameter) were analysed for fluids with different viscosities and at different flow rates. It was observed that the presence of particles, even at very low concentration, has a significant effect, increasing the mean residence time and decreasing the standardized dispersion. This effect was attributed to particles breaking the velocity profile of the fluid and causing some localized mixing due to their rotational velocity. Although the presence of particles affected the results, their concentration (or number) was not relevant, in the range tested, which is very low for particulate foods.
Peer review: yes
URI: http://hdl.handle.net/10400.14/5579
Versão do Editor: The original publication is available at : http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2621.1995.tb01410.x/abstract
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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