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Titolo:
Gas flow regime changes in a bubble column filled with a fibre suspension
Autore:
Heindel, TJ;
Indirizzi:
Inst Paper Sci & Technol, Atlanta, GA 30318 USA Inst Paper Sci & Technol Atlanta GA USA 30318 hnol, Atlanta, GA 30318 USA
Titolo Testata:
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
fascicolo: 5, volume: 78, anno: 2000,
pagine: 1017 - 1022
SICI:
0008-4034(200010)78:5<1017:GFRCIA>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
3-PHASE FLUIDIZED-BED; LIQUID FLOW; HOLDUP; SIZE; PULP; TOMOGRAPHY; DYNAMICS; REACTORS; SLURRY;
Keywords:
bubble column; fibre suspension; flow visualization; gas flow regimes; X-rays;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Heindel, TJ Iowa State Univ, Dept Mech Engn, 2026 HM Black Engn Bldg, Ames, IA 50011 USA Iowa State Univ 2026 HM Black Engn Bldg Ames IA USA 50011 USA
Citazione:
T.J. Heindel, "Gas flow regime changes in a bubble column filled with a fibre suspension", CAN J CH EN, 78(5), 2000, pp. 1017-1022

Abstract

Gas flow characteristics in opaque fibre suspensions have been captured onfilm using a stop-motion X-ray imaging technique called flash X-ray radiography (FXR). Gas flows in a bubble column filled with various cellulose fibre suspensions from 0% (an air-water system) to 5% by mass have been observed. The gas flow regime changes from vortical to churn-turbulent as the fibre concentration increases for a fixed superficial gas velocity. Two new gas flow regimes, identified as surge churn-turbulent and discrete channel flow, have also been recorded at high fibre concentrations.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/04/20 alle ore 16:05:49