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Solids flow structures in a two-dimensional riser of a circulating fluidized bed.

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 1989 Italy Publisher:Informa UK LimitedJournal:JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, volume 22, pages 236-241 (issn: 0021-9592, eissn: 1881-1299,

Authors: ARENA, Umberto; A. CAMMAROTA; A. MARZOCCHELLA; L. MASSIMILLA;

doi: 10.1252/jcej.22.236

handle: 11588/461441 , 11591/199521

Solids flow structures in a two-dimensional riser of a circulating fluidized bed.

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Abstract

A two-dimensional riser with transparent walls has been successfully operated in a CFB loop. Solids flow structures have been investigated through the glass front wall by means of a motion analysis system. Slugs and gas-percolated plugs are observed in the dense and dilute regions of the riser respectively. Particle aggregates in the riser have elongated shapes and are not dispersed but are structured as solids streaks flowing in converging and diverging branches. The latter appear like small slugs extending on a fraction of the riser width only.

Country

Italy

Related Organizations

University of Campania "Luigi Vanvitelli"
Italy
National Research Council
Italy
University Federico II of Naples
Italy
University of Campania "Luigi Vanvitelli"
Italy
Institute for Research on Combustion
Italy

Keywords

Circulating fluidized bed; flow structure; two dimensional, flow structure, two dimensional, Circulatjng Fluidized Bcds; Hydrodynamics of Gas-Solid Suspension; Motion Digiml Analysis; Regimes of Fluidization;, Circulating fluidized bed

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	21
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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average