Overall Map and Correlation of Dispersion Data for Flow through Granular Packed Beds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

J. R. F. Guedes de Carvalho (Autor) FEUP; J. M. P. Q. Delgado (Autor) FEUP

Revista

Título: Chemical Engineering Science

Vol. 60 Nº 2

Páginas: 365-375

ISSN: 0009-2509

Editora: Elsevier

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 34 Citações

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Outras Informações

ID Authenticus: P-000-5B8

DOI: 10.1016/j.ces.2004.07.121

Abstract (EN): Measuredvalues of the coefficients of transverse andlongitudinal dispersion (DT and DL, respectively) are reportedfor liquid flow through granular packedbeds. Measurements of DT were made for 50 <Sc< 1950 and300 <Pem < 105, working with water at temperatures between 278 and373 K, andvalues of DL were measuredfor Sc ∼= 750 and1 <Pem < 45, working with water at 293 K; nearly two hundred new data points are reported. The data obtained, together with data from other sources, both for gas and liquid flow, are reported in plots of P eT vs P em and P eL vs. P em, in order to stress the influence of Sc on dispersion and elucidate the difference between liquid and gas behaviour. Empirical correlations are presented for the prediction of the dispersion coefficients (DT and DL) over the entire range of practical values of Sc and P em, andthey are shown to give the dispersion coefficients with very goodaccuracy

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11