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Titolo:
Predicting the liquid flux distribution and collection efficiency in cylindrical venturi scrubbers
Autore:
Ananthanarayanan, NV; Viswanathan, S;
Indirizzi:
Natl Univ Singapore, Dept Environm Chem & Engn, Singapore 119260, Singapore Natl Univ Singapore Singapore Singapore 119260 ngapore 119260, Singapore
Titolo Testata:
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
fascicolo: 1, volume: 38, anno: 1999,
pagine: 223 - 232
SICI:
0888-5885(199901)38:1<223:PTLFDA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE; FLOW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Viswanathan, S NatlgaporeSingapore, Dept Environm Chem & Engn, 10 Kent Ridge Crescent, Sin Natl Univ Singapore 10 Kent Ridge Crescent Singapore Singapore 119260
Citazione:
N.V. Ananthanarayanan e S. Viswanathan, "Predicting the liquid flux distribution and collection efficiency in cylindrical venturi scrubbers", IND ENG RES, 38(1), 1999, pp. 223-232

Abstract

A simplified two-dimensional model to predict liquid flux distribution andcollection efficiency in cylindrical Venturi scrubbers with Pease-Anthony mode operation is evaluated with experimental data from a pilot-scale unit. Prediction of the liquid flux distribution near the point of injection appears to be far from agreement with experimental values while the accuracy of prediction has been found to improve with distance from the injection point. The initial location of the liquid source immediately after atomizationhas been found to affect the liquid flux distribution significantly. Although the overall liquid distribution pattern is found to be in good agreement with the experimental data, the prediction of liquid distribution appearsto be a strong function of jet penetration length and turbulence caused byoperating conditions. Concentric injection at high liquid rates could result in collision between jets from nozzles as they converge at the center ofthe scrubber. Turbulence caused by interaction between the jets is accounted for by using varying Peclet numbers. A dimensionless group, Venturi number, developed from jet penetration correlation has been found to predict conditions that give rise to uniform flux distribution and maximum collectionefficiency. Venturi numbers between 1 x 10(-3) and 1.5 x 10(-3) appear to predict conditions for cylindrical Venturi scrubbers (with radial injectioninto the throat using nozzles) for optimal liquid utilization and maximum collection efficiency.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 22:21:42