Publication detail
A novel approach to the uniform distribution of liquid in multi-channel (electrochemical) flow-through cells
LACINA, K. VONDÁL, J. SKLÁDAL, P.
Czech title
Nové řešení rozdělení tekutiny ve vícekanálové, elektrochemické, průtočné cele
English title
A novel approach to the uniform distribution of liquid in multi-channel (electrochemical) flow-through cells
Type
journal article in Web of Science
Language
en
Original abstract
Four-channel flow-through electrochemical cell working in thin-layer regime was designed, fabricated and characterized experimentally and in computational fluid dynamics (CFD) simulations. The new principle of operation allows reproducible splitting of a stream of liquid into multiple flow channels. Systems comprising of 2-, 3-, 4- and 8-channels were tested. The proper function of the cell is given by the ratio of the cross-sections of the fluidic element collecting chamber and the particular flow paths among which the liquid is distributed. Suitable flow rates providing uniform liquid distribution were evaluated and the results were compared to CFD modeling. The flow-through cells designed according to the proposed principle can be simply incorporated in automated routine analysis as only one inlet and one common outlet are required.
Czech abstract
Navržena byla čtyřkanálová průtočná elektrochemická cela pracující v režimu tenké vrstvy. Její funkce byla ověřena experimentálně a s pomocí počítačové dynamiky tekutin (CFD). Nový princip umožňuje opakovatelné rozdělení proudu tekutiny do více kanálů. Ověřeny byly dvou, tří a čtyř-kanálové varianty. Uvedena je závislost spolehlivosti rozdělení tekutiny na poměru průřezu sběrné komory ku průřezu jednotlivého kanálu. Vyhodnoceny byly rozsahy průtoků za kterých je dosahováno rovnoměrného rozdělení proudu tekutiny s následným porovnáním s výsledky ze CFD analýzy. Průtočné cely využívající uvedený princip rozdělení toku mohou být jednoduše zahrnuty do automatických vyhodnocovacích systémů, neboť vyžadují pouze jeden vstup a jeden výstup tekutiny.
English abstract
Four-channel flow-through electrochemical cell working in thin-layer regime was designed, fabricated and characterized experimentally and in computational fluid dynamics (CFD) simulations. The new principle of operation allows reproducible splitting of a stream of liquid into multiple flow channels. Systems comprising of 2-, 3-, 4- and 8-channels were tested. The proper function of the cell is given by the ratio of the cross-sections of the fluidic element collecting chamber and the particular flow paths among which the liquid is distributed. Suitable flow rates providing uniform liquid distribution were evaluated and the results were compared to CFD modeling. The flow-through cells designed according to the proposed principle can be simply incorporated in automated routine analysis as only one inlet and one common outlet are required.
Keywords in Czech
Průtoková injekční analýza; Vícekanálová elektrochemická cela; Rovnoměrné rozdělení tekutiny; Amperometrie
Keywords in English
Flow injection analysis; Multi-channel electrochemical cell; Uniform liquid distribution; Amperometry
RIV year
2012
Released
21.05.2012
Publisher
ELSEVIER SCIENCE BV
ISSN
0003-2670
Volume
727
Number
5
Pages from–to
41–46
Pages count
6
BIBTEX
@article{BUT93040,
author="Karel {Lacina} and Jiří {Vondál} and Petr {Skládal},
title="A novel approach to the uniform distribution of liquid in multi-channel (electrochemical) flow-through cells",
year="2012",
volume="727",
number="5",
month="May",
pages="41--46",
publisher="ELSEVIER SCIENCE BV",
issn="0003-2670"
}