Determination of the surface heat-transfer coefficient in CE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A10001088" target="_blank" >RIV/00216208:11310/09:10001088 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of the surface heat-transfer coefficient in CE

Original language description

A knowledge of the heat-transfer coefficient, h(s), for the external surface of the capillary or the overall heat coefficient, hop, is of great value in predicting the mean increase in temperature of the electrolyte, Delta T-Mean, during electrokinetic separations. A novel method for h(s) determination in CE is introduced, which is based on curve-fitting of plots of conductance versus voltage to calculate several important parameters including Delta T-Mean, the conductance free of Joule heating effects(G(0)) and the voltage that causes autothermal runaway, V-lim. The new method is superior to previously published methods in that it can be performed more quickly and that it corrects for systematic errors in the measurement of electric current for voltages <5 kV. Axially averaged values for h(s) were determined for three different commercial CE instruments ranging from 164 W m(-2) K-1 for a passively cooled instrument in a drafty environment to 460 W m(-2) K-1 for a liquid-cooled instru

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Electrophoresis

ISSN

0173-0835

e-ISSN

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Volume of the periodical

30

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

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UT code for WoS article

000264471900021

EID of the result in the Scopus database

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