A critical comparison of approximate solutions for enhancement factor for irreversible second-order reaction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912670" target="_blank" >RIV/00216275:25310/18:39912670 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.ces.2018.07.003" target="_blank" >https://doi.org/10.1016/j.ces.2018.07.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2018.07.003" target="_blank" >10.1016/j.ces.2018.07.003</a>
Alternative languages
Result language
angličtina
Original language name
A critical comparison of approximate solutions for enhancement factor for irreversible second-order reaction
Original language description
In this paper, the exact numerical solution for the enhancement factor for mass transfer accompanied by an irreversible second-order reaction based on the film theory is presented. The accuracy of the numerical solution is enhanced by using non-uniform discretization steps and Richardson extrapolation. Approximate analytical solutions available in the literature for the enhancement factor for an irreversible second-order reaction were compared with presented numerical solution. All approximate solutions are able to predict the values of the enhancement factor with the relative deviations within 10% compared to the exact numerical solution for the film theory. However, the applicability of the model and some approximate solutions is limited to the fast reaction regime. The approximate solution of DeCoursey(1974), originally developed for the surface renewal theory, was adapted to the film theory by using a correction factor. The maximum relative deviation of the modified approximate solution is as low as 2.2% for entire range of parameters Ha and E-i (Hatta number and enhancement factor for instantaneous reaction), which is the best accuracy that has ever been reported for an explicit expression for the enhancement factor for an irreversible second-order reaction.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Science
ISSN
0009-2509
e-ISSN
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Volume of the periodical
191
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
410-419
UT code for WoS article
000442381500033
EID of the result in the Scopus database
2-s2.0-85049440215