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 |
|