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"
}