About: AC electric sensing of slug-flow properties with exposed gold microelectrodes

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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)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://iopscience.iop.org/0960-1317/24/1/015002/pdf/0960-1317_24_1_015002.pdf
Description	A new method for slug-flow (segmented flow) characterization by means of ac electric sensing is proposed. Water segments regularly dispersed in kerosene are used as an experimental system. The sensing procedure is carried out in a plexiglass microchip with embedded gold microelectrodes. The presence of passing slugs over a measurement spot is determined from impedance variations. A square-shaped signal resulting from the slug flow is acquired and flow properties such as the mean velocity and length of the slugs are calculated. Complex behaviour of the corresponding electrochemical system is studied. Dependence of the impedance signal on the flow rate, ion concentration in the dispersed water slug and electric field strength are discussed and explained in detail. Advantages and disadvantages of the suggested method, in comparison with existing capacitive noncontact methods, are also clarified. Unlike the noncontact methods of electric sensing, with the insulation dielectric layer over the electrodes, our electrodes are in a direct contact with the carrier phase. The results show that the method is promising for process applications and will be further improved. A new method for slug-flow (segmented flow) characterization by means of ac electric sensing is proposed. Water segments regularly dispersed in kerosene are used as an experimental system. The sensing procedure is carried out in a plexiglass microchip with embedded gold microelectrodes. The presence of passing slugs over a measurement spot is determined from impedance variations. A square-shaped signal resulting from the slug flow is acquired and flow properties such as the mean velocity and length of the slugs are calculated. Complex behaviour of the corresponding electrochemical system is studied. Dependence of the impedance signal on the flow rate, ion concentration in the dispersed water slug and electric field strength are discussed and explained in detail. Advantages and disadvantages of the suggested method, in comparison with existing capacitive noncontact methods, are also clarified. Unlike the noncontact methods of electric sensing, with the insulation dielectric layer over the electrodes, our electrodes are in a direct contact with the carrier phase. The results show that the method is promising for process applications and will be further improved. (en)
Title	AC electric sensing of slug-flow properties with exposed gold microelectrodes AC electric sensing of slug-flow properties with exposed gold microelectrodes (en)
skos:prefLabel	AC electric sensing of slug-flow properties with exposed gold microelectrodes AC electric sensing of slug-flow properties with exposed gold microelectrodes (en)
skos:notation	RIV/60461373:22340/14:43897821!RIV15-AV0-22340___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(IAA401280904), S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Čech, Jiří Přibyl, Michal Šnita, Dalimil Janouš, Jiří Beránek, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	1385
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/14:43897821
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electric double layer; electric sensing; microelectrodes; microfluidics; slug flow (en)
http://linked.open.../riv/klicoveSlovo	electric double layer microelectrodes microfluidics slug flow electric sensing
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[3F9A5400B79F]
http://linked.open...i/riv/nazevZdroje	Journal of Micromechanics and Microengineering
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	High-aspect-ratio electrochemical processing of metallic microstructures
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	24
http://linked.open...iv/tvurceVysledku	Janouš, Jiří Šnita, Dalimil Přibyl, Michal Čech, Jiří Beránek, Pavel
http://linked.open...ain/vavai/riv/wos	000328813900004
issn	0960-1317
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0960-1317/24/1/015002
http://localhost/t...ganizacniJednotka	22340

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