SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000300015 |
Resumo: | Abstract Dissolved gas analysis (DGA) has been applied for decades as the main predictive maintenance technique for diagnosing incipient faults in power transformers since the decomposition of the mineral insulating oil (MIO) produces gases that remain dissolved in the liquid phase. Nevertheless, the most known diagnostic methods are based on findings of simplified thermodynamic and compositional models for the thermal decomposition of MIO, in addition to empirical data. The simulation results obtained from these models do not satisfactorily reproduce the empirical data. This paper proposes a flexible thermodynamic model enhanced with a kinetic approach and selects, among four compositional models, the one offering the best performance for the simulation of thermal decomposition of MIO. The simulation results obtained from the proposed model showed better adequacy to reported data than the results obtained from the classical models. The proposed models may be applied in the development of a phenomenologically-based diagnostic method. |
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Brazilian Journal of Chemical Engineering |
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SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OILDissolved gas analysisMineral insulating oilThermal decompositionPower transformerAbstract Dissolved gas analysis (DGA) has been applied for decades as the main predictive maintenance technique for diagnosing incipient faults in power transformers since the decomposition of the mineral insulating oil (MIO) produces gases that remain dissolved in the liquid phase. Nevertheless, the most known diagnostic methods are based on findings of simplified thermodynamic and compositional models for the thermal decomposition of MIO, in addition to empirical data. The simulation results obtained from these models do not satisfactorily reproduce the empirical data. This paper proposes a flexible thermodynamic model enhanced with a kinetic approach and selects, among four compositional models, the one offering the best performance for the simulation of thermal decomposition of MIO. The simulation results obtained from the proposed model showed better adequacy to reported data than the results obtained from the classical models. The proposed models may be applied in the development of a phenomenologically-based diagnostic method.Brazilian Society of Chemical Engineering2015-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000300015Brazilian Journal of Chemical Engineering v.32 n.3 2015reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/0104-6632.20150323s00003531info:eu-repo/semantics/openAccessCruz,V. G. M.Costa,A. L. H.Paredes,M. L. L.eng2017-01-03T00:00:00Zoai:scielo:S0104-66322015000300015Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2017-01-03T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
title |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
spellingShingle |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL Cruz,V. G. M. Dissolved gas analysis Mineral insulating oil Thermal decomposition Power transformer |
title_short |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
title_full |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
title_fullStr |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
title_full_unstemmed |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
title_sort |
SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL |
author |
Cruz,V. G. M. |
author_facet |
Cruz,V. G. M. Costa,A. L. H. Paredes,M. L. L. |
author_role |
author |
author2 |
Costa,A. L. H. Paredes,M. L. L. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Cruz,V. G. M. Costa,A. L. H. Paredes,M. L. L. |
dc.subject.por.fl_str_mv |
Dissolved gas analysis Mineral insulating oil Thermal decomposition Power transformer |
topic |
Dissolved gas analysis Mineral insulating oil Thermal decomposition Power transformer |
description |
Abstract Dissolved gas analysis (DGA) has been applied for decades as the main predictive maintenance technique for diagnosing incipient faults in power transformers since the decomposition of the mineral insulating oil (MIO) produces gases that remain dissolved in the liquid phase. Nevertheless, the most known diagnostic methods are based on findings of simplified thermodynamic and compositional models for the thermal decomposition of MIO, in addition to empirical data. The simulation results obtained from these models do not satisfactorily reproduce the empirical data. This paper proposes a flexible thermodynamic model enhanced with a kinetic approach and selects, among four compositional models, the one offering the best performance for the simulation of thermal decomposition of MIO. The simulation results obtained from the proposed model showed better adequacy to reported data than the results obtained from the classical models. The proposed models may be applied in the development of a phenomenologically-based diagnostic method. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000300015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322015000300015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0104-6632.20150323s00003531 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.32 n.3 2015 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213174746284032 |