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| rdf:type
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| Description
| - Byly provedeny experimenty v probublávaných kolonách laboratorního měřítka za účelem studia vlivu povrchově aktivních látek na stabilitu homogenního režimu probublávané vrstvy. Roztoky CaCl2 různých koncentrací byly použity jako povrchově aktivní látky. Byla naměřena primární data zádrž plynu vs. průtok plynu. Kritický bod to jest průtok plynu, při kterém ustavený homogenní režim v koloně ztrácí svou stabilitu a nastupuje režim přechodový byl vyhodnocen několika způsoby. Kritické hodnoty průtoku a odpovídající zádrže byly uvažovány jako kvantitativní měřítko stability homogenního režimu. (cs)
- Experiments were carried out to investigate the effect a surface active agent on homogeneous–heterogeneous flow regime transition in a laboratory scale bubble column. The (voidage e) - (gas flow rate q) dependence was measured. The critical point where the homogeneous regime loses stability and the transition begins was evaluated by several methods. These methods are based on the slip speed concept and the drift flux model. The critical values of voidage and gas flow rate were taken as the quantitative measures of the homogeneous regime stability. They were plotted against the surfactant concentration. It was found that the surfactant has a dual effect on both the voidage and the regime transition: low concentration stabilizes and larger concentration destabilizes the homogeneous bubble bed. At present, we do not have an explanation to these observations. Possible physical mechanisms of the surfactant effect are expected to be revealed by further experiments.
- Experiments were carried out to investigate the effect a surface active agent on homogeneous–heterogeneous flow regime transition in a laboratory scale bubble column. The (voidage e) - (gas flow rate q) dependence was measured. The critical point where the homogeneous regime loses stability and the transition begins was evaluated by several methods. These methods are based on the slip speed concept and the drift flux model. The critical values of voidage and gas flow rate were taken as the quantitative measures of the homogeneous regime stability. They were plotted against the surfactant concentration. It was found that the surfactant has a dual effect on both the voidage and the regime transition: low concentration stabilizes and larger concentration destabilizes the homogeneous bubble bed. At present, we do not have an explanation to these observations. Possible physical mechanisms of the surfactant effect are expected to be revealed by further experiments. (en)
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| Title
| - Effect of Surfactant on Homogeneous Regime Stability in Bubble Column.
- Vliv povrchově aktivních látek na stabilitu homogenního režimu v probublávaných kolonách. (cs)
- Effect of Surfactant on Homogeneous Regime Stability in Bubble Column. (en)
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| skos:prefLabel
| - Effect of Surfactant on Homogeneous Regime Stability in Bubble Column.
- Vliv povrchově aktivních látek na stabilitu homogenního režimu v probublávaných kolonách. (cs)
- Effect of Surfactant on Homogeneous Regime Stability in Bubble Column. (en)
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| skos:notation
| - RIV/67985858:_____/08:00099419!RIV08-AV0-67985858
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA104/05/2566), P(GA104/06/1418), P(GA104/07/1110), P(GP104/06/P287), Z(AV0Z40720504)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/67985858:_____/08:00099419
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - bubble column; gas holdup; surfactant (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Chemical Engineering Science
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Růžička, Marek
- Orvalho, Sandra Petronilho
- Večeř, Marek
- Drahoš, Jiří
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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