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Heat transfer modeling in exhaust systems of high-performance two-stroke engines

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Heat transfer modeling in exhaust systems of high-performance two-stroke engines

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dc.contributor.author Lujan Martinez, José Manuel es_ES
dc.contributor.author Climent Puchades, Héctor es_ES
dc.contributor.author Olmeda González, Pablo Cesar es_ES
dc.contributor.author Jiménez Macedo, Víctor Daniel es_ES
dc.date.accessioned 2015-04-28T07:32:24Z
dc.date.available 2015-04-28T07:32:24Z
dc.date.issued 2014-08
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/10251/49341
dc.description.abstract Heat transfer from the hot gases to the wall in exhaust systems of high-performance two-stroke engines is underestimated using steady state with fully developed flow empirical correlations. This fact is detected when comparing measured and modeled pressure pulses in different positions in the exhaust system. This can be explained taking into account that classical expressions have been validated for fully developed flows, a situation that is far from the flow behavior in reciprocating internal combustion engines. Several researches have solved this phenomenon in four-stroke engines, suggesting that the unsteady flow is strongly linked to the heat transfer. This research evaluates the correlations proposed by other authors in four stroke engines and introduces a new heat transfer model for exhaust systems in two-stroke, high performance, gasoline engines. The model, which accounts for both the entrance length effect and flow velocity fluctuations, is validated against experimental measurements. Comparisons of the proposed model with other models are performed, showing not negligible differences in the scavenge process related parameters. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Heat transfer es_ES
dc.subject Unsteady flow es_ES
dc.subject 1D modeling es_ES
dc.subject Two-stroke engine es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Heat transfer modeling in exhaust systems of high-performance two-stroke engines es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2014.04.045
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario CMT-Motores Térmicos - Institut Universitari CMT-Motors Tèrmics es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Lujan Martinez, JM.; Climent Puchades, H.; Olmeda González, PC.; Jimenez Macedo, VD. (2014). Heat transfer modeling in exhaust systems of high-performance two-stroke engines. Applied Thermal Engineering. 69(1-2):96-104. doi:10.1016/j.applthermaleng.2014.04.045 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.applthermaleng.2014.04.045 es_ES
dc.description.upvformatpinicio 96 es_ES
dc.description.upvformatpfin 104 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 69 es_ES
dc.description.issue 1-2 es_ES
dc.relation.senia 266406


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