Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis
Methane combustion was studied by the Westbrook and Dryer model. This well-established simplified mechanism is very useful in combustion science, for computational effort can be notably reduced. In the inversion procedure to be studied, rate constants are obtained from [CO] concentration data. Howev...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2013-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000200011 |
| _version_ | 1818494551437869056 |
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| author | Bárbara D. L. Ferreira Jaqueline M. Paulo João P. Braga Rita C. O. Sebastião Fabrício J. P. Pujatti |
| author_facet | Bárbara D. L. Ferreira Jaqueline M. Paulo João P. Braga Rita C. O. Sebastião Fabrício J. P. Pujatti |
| author_sort | Bárbara D. L. Ferreira |
| collection | DOAJ |
| description | Methane combustion was studied by the Westbrook and Dryer model. This well-established simplified mechanism is very useful in combustion science, for computational effort can be notably reduced. In the inversion procedure to be studied, rate constants are obtained from [CO] concentration data. However, when inherent experimental errors in chemical concentrations are considered, an ill-conditioned inverse problem must be solved for which appropriate mathematical algorithms are needed. A recurrent neural network was chosen due to its numerical stability and robustness. The proposed methodology was compared against Simplex and Levenberg-Marquardt, the most used methods for optimization problems. |
| first_indexed | 2024-12-10T18:08:03Z |
| format | Article |
| id | doaj.art-3fa6f014ccd14b07b8f6708db9287ffd |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-10T18:08:03Z |
| publishDate | 2013-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-3fa6f014ccd14b07b8f6708db9287ffd2022-12-22T01:38:34ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642013-01-01362262266Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysisBárbara D. L. FerreiraJaqueline M. PauloJoão P. BragaRita C. O. SebastiãoFabrício J. P. PujattiMethane combustion was studied by the Westbrook and Dryer model. This well-established simplified mechanism is very useful in combustion science, for computational effort can be notably reduced. In the inversion procedure to be studied, rate constants are obtained from [CO] concentration data. However, when inherent experimental errors in chemical concentrations are considered, an ill-conditioned inverse problem must be solved for which appropriate mathematical algorithms are needed. A recurrent neural network was chosen due to its numerical stability and robustness. The proposed methodology was compared against Simplex and Levenberg-Marquardt, the most used methods for optimization problems.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000200011methane combustionkinetic rate constantsinverse problem |
| spellingShingle | Bárbara D. L. Ferreira Jaqueline M. Paulo João P. Braga Rita C. O. Sebastião Fabrício J. P. Pujatti Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis Química Nova methane combustion kinetic rate constants inverse problem |
| title | Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis |
| title_full | Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis |
| title_fullStr | Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis |
| title_full_unstemmed | Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis |
| title_short | Methane combustion kinetic rate constants determination: an ill-posed inverse problem analysis |
| title_sort | methane combustion kinetic rate constants determination an ill posed inverse problem analysis |
| topic | methane combustion kinetic rate constants inverse problem |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000200011 |
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