About: Effect of viscosity and surfactants on flow regime transition in bubble columns

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Experiments were performed with bubble columns to investigate the effect of physico-chemical properties of the liquid phase on the overall steady gas hold-up and on the stability of the homogeneous flow regime. The critical values of holdup and gas flow rate were extracted from the measured data using drift-flux plot. The results proved the general expectation that the liquid viscosity destabilizes the homogeneous regime and advances the transition to the heterogeneous regime. The critical values can becorrelated with the viscosity by a power-law fit. On the other hand, the effect of surface active agents (inorganic salt) may have ambiguous effects on the hydrodynamics of bubble columns. Therefore, farther experiments are needed to obtain a larger set of data and to arrive at more conclusive results. Experiments were performed with bubble columns to investigate the effect of physico-chemical properties of the liquid phase on the overall steady gas hold-up and on the stability of the homogeneous flow regime. The critical values of holdup and gas flow rate were extracted from the measured data using drift-flux plot. The results proved the general expectation that the liquid viscosity destabilizes the homogeneous regime and advances the transition to the heterogeneous regime. The critical values can becorrelated with the viscosity by a power-law fit. On the other hand, the effect of surface active agents (inorganic salt) may have ambiguous effects on the hydrodynamics of bubble columns. Therefore, farther experiments are needed to obtain a larger set of data and to arrive at more conclusive results. (en)
Title	Effect of viscosity and surfactants on flow regime transition in bubble columns Effect of viscosity and surfactants on flow regime transition in bubble columns (en)
skos:prefLabel	Effect of viscosity and surfactants on flow regime transition in bubble columns Effect of viscosity and surfactants on flow regime transition in bubble columns (en)
skos:notation	RIV/61989100:27360/01:00001144!RIV/2002/GA0/273602/N
http://linked.open.../vavai/riv/strany	146
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA104/01/0547)
http://linked.open...vai/riv/dodaniDat	2002
http://linked.open...aciTvurceVysledku	Wichterle, Kamil
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	678824
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/01:00001144
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bubble columns, regime transition, viscosity, surfactants (en)
http://linked.open.../riv/klicoveSlovo	bubble columns viscosity surfactants regime transition
http://linked.open...ontrolniKodProRIV	[501DA81FF30E]
http://linked.open...v/mistoKonaniAkce	Tatranské Matliare
http://linked.open...i/riv/mistoVydani	Bratislava
http://linked.open...i/riv/nazevZdroje	28th International Conference SSCHE
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Instability of homogeneous flow regime in bubble columns
http://linked.open...UplatneniVysledku	2001
http://linked.open...iv/tvurceVysledku	Růžička, M. Wichterle, Kamil Drahoš, J. Smolková, P.
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2001-05-21 (xsd:date)
number of pages	1 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Slovak Society of Chemical Engineering,
https://schema.org/isbn	80-227-1533-6
http://localhost/t...ganizacniJednotka	27360

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