Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/87033 |
Resumo: | Speed flame propagation in Otto cycle engines is one of the principal characteristics of fuel and is fundamental in defining the ignition advance. The greater the propagation speed the less the negative work required to compress the mixture before the piston reaches the top dead center and the higher the cycle’s efficiency. This paper presents experimental results of time measurements of the fuel’s ignition and the maximum pressure rating in the combustion chamber of a Cooperative Fuel Research engine specially instrumented. The combustion duration measurements of oxygenated and non-oxygenated fuels were taken as a function of the compression ratio (8:1, 10:1 and 12:1) and lambda (k).The speed flame propagation in the combustion chamber is significantly changed with the change of the lambda different compression ratios. The VNG has a maximum in the speed flame propagation in the stoichiometric region (k = 1.0) in all compression rates in this study. Similar behavior occurs with ethanol and gasohol, but only in compression ratio 12:1. Ethanol and gasohol have the higher rate of flame propagation for all compression ratios measured as compared to the nonoxygenated (isooctane) and oxygenated fuels (MTBE and TAEE). |
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Mello, Pedro BarbosaWildner, Fabiano DisconziAndrade, Giovanni Souza deCataluña Veses, RenatoSilva, Rosângela da2014-01-31T01:54:29Z20141678-5878http://hdl.handle.net/10183/87033000910940Speed flame propagation in Otto cycle engines is one of the principal characteristics of fuel and is fundamental in defining the ignition advance. The greater the propagation speed the less the negative work required to compress the mixture before the piston reaches the top dead center and the higher the cycle’s efficiency. This paper presents experimental results of time measurements of the fuel’s ignition and the maximum pressure rating in the combustion chamber of a Cooperative Fuel Research engine specially instrumented. The combustion duration measurements of oxygenated and non-oxygenated fuels were taken as a function of the compression ratio (8:1, 10:1 and 12:1) and lambda (k).The speed flame propagation in the combustion chamber is significantly changed with the change of the lambda different compression ratios. The VNG has a maximum in the speed flame propagation in the stoichiometric region (k = 1.0) in all compression rates in this study. Similar behavior occurs with ethanol and gasohol, but only in compression ratio 12:1. Ethanol and gasohol have the higher rate of flame propagation for all compression ratios measured as compared to the nonoxygenated (isooctane) and oxygenated fuels (MTBE and TAEE).application/pdfengJournal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro. Vol. 36, no. 2 (Feb. 2014), p. 403-410CombustíveisFuelsSpeed flame propagationOtto cycle engineCombustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engineinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000910940.pdf000910940.pdfTexto completo (inglês)application/pdf339385http://www.lume.ufrgs.br/bitstream/10183/87033/1/000910940.pdf634854c2fc08441aa3126dd458f4a8c2MD51TEXT000910940.pdf.txt000910940.pdf.txtExtracted Texttext/plain32252http://www.lume.ufrgs.br/bitstream/10183/87033/2/000910940.pdf.txt09a88da1370acd11982af9eccfcf1751MD52THUMBNAIL000910940.pdf.jpg000910940.pdf.jpgGenerated Thumbnailimage/jpeg1812http://www.lume.ufrgs.br/bitstream/10183/87033/3/000910940.pdf.jpg2c77f7f2642ad89a5671d995dd66c131MD5310183/870332022-07-01 04:46:05.831892oai:www.lume.ufrgs.br:10183/87033Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-07-01T07:46:05Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
title |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
spellingShingle |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine Mello, Pedro Barbosa Combustíveis Fuels Speed flame propagation Otto cycle engine |
title_short |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
title_full |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
title_fullStr |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
title_full_unstemmed |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
title_sort |
Combustion time of the oxygenated and non-oxygenated fuels in an Otto cycle engine |
author |
Mello, Pedro Barbosa |
author_facet |
Mello, Pedro Barbosa Wildner, Fabiano Disconzi Andrade, Giovanni Souza de Cataluña Veses, Renato Silva, Rosângela da |
author_role |
author |
author2 |
Wildner, Fabiano Disconzi Andrade, Giovanni Souza de Cataluña Veses, Renato Silva, Rosângela da |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Mello, Pedro Barbosa Wildner, Fabiano Disconzi Andrade, Giovanni Souza de Cataluña Veses, Renato Silva, Rosângela da |
dc.subject.por.fl_str_mv |
Combustíveis |
topic |
Combustíveis Fuels Speed flame propagation Otto cycle engine |
dc.subject.eng.fl_str_mv |
Fuels Speed flame propagation Otto cycle engine |
description |
Speed flame propagation in Otto cycle engines is one of the principal characteristics of fuel and is fundamental in defining the ignition advance. The greater the propagation speed the less the negative work required to compress the mixture before the piston reaches the top dead center and the higher the cycle’s efficiency. This paper presents experimental results of time measurements of the fuel’s ignition and the maximum pressure rating in the combustion chamber of a Cooperative Fuel Research engine specially instrumented. The combustion duration measurements of oxygenated and non-oxygenated fuels were taken as a function of the compression ratio (8:1, 10:1 and 12:1) and lambda (k).The speed flame propagation in the combustion chamber is significantly changed with the change of the lambda different compression ratios. The VNG has a maximum in the speed flame propagation in the stoichiometric region (k = 1.0) in all compression rates in this study. Similar behavior occurs with ethanol and gasohol, but only in compression ratio 12:1. Ethanol and gasohol have the higher rate of flame propagation for all compression ratios measured as compared to the nonoxygenated (isooctane) and oxygenated fuels (MTBE and TAEE). |
publishDate |
2014 |
dc.date.accessioned.fl_str_mv |
2014-01-31T01:54:29Z |
dc.date.issued.fl_str_mv |
2014 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/87033 |
dc.identifier.issn.pt_BR.fl_str_mv |
1678-5878 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000910940 |
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1678-5878 000910940 |
url |
http://hdl.handle.net/10183/87033 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Rio de Janeiro. Vol. 36, no. 2 (Feb. 2014), p. 403-410 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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