HEAT-TRANSFER PARAMETERS IN FIXED-BED EXCHANGERS

• Type: Article in International Scientific Journal
• Date: 1987

Authors

CHALBI, M (Author) Other; CASTRO, JA (Author) Other; Alírio Rodrigues (Author) FEUP; ZOULALIAN, A (Author) Other

Journal

Title: Chemical Engineering Journal and the Biochemical Engineering Journal

Vol. 34

Pages: 89-97

ISSN: 0923-0467

Publisher: Elsevier B.V.

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-001-VAV

DOI: 10.1016/0300-9467(87)87005-3

Abstract (EN): Heat transfer parameters were measured in fixed bed exchangers containing alumina catalyst particles with particle diameter dp = 3.1 × 10-3 m. Different tube diameter (dt) to particle diameter ratios were used, ranging from 3 to 18. Radial temperature profiles were measured at various axial positions. Results were analysed on the basis of a pseudohomogeneous unidimensional model leading to an overall wall heat transfer coefficient hw, which showed a maximum value at dt/dp ¿ 6. Experimental results were also analysed by means of a pseudohomogeneous bidimensional model from which the wall heat transfer coefficient ¿w and the effective radial thermal conductivity ¿er were calculated as a function of the particle Reynolds' number. © 1987.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9