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Numerical simulations for evaluating the impact of advanced insulation coatings on H2 additivated gasoline lean combustion in a turbocharged

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Numerical simulations for evaluating the impact of advanced insulation coatings on H2 additivated gasoline lean combustion in a turbocharged

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dc.contributor.author Broatch, A. es_ES
dc.contributor.author Olmeda, P. es_ES
dc.contributor.author Margot, Xandra es_ES
dc.contributor.author Gómez-Soriano, Josep es_ES
dc.date.accessioned 2019-10-24T06:46:09Z
dc.date.available 2019-10-24T06:46:09Z
dc.date.issued 2019 es_ES
dc.identifier.issn 1359-4311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/129375
dc.description.abstract [EN] This paper presents a numerical methodology based on Computational Fluid Dynamics (CFD) simulations to understand the physics of heat losses through the cylinder walls coated with different materials, taking into account other important factors such as surface roughness and near wall flow velocity in a turbocharged spark-ignited (SI) engine. Engine closed cycle simulations have been performed to estimate the thermodynamic evolution of the charge inside the cylinder and therefore, to evaluate the effect of roughness on heat transfer and combustion at real operating conditions. The model has been validated by using experimental data for two different steady-state operation conditions of a fully instrumented engine. In general, the maximum rate of heat release is reduced as the roughness is increased. Observed trends indicate that the heat transfer variation is mainly caused by changes in the combustion process due to the surface roughness, rather than to the effects of the coating material properties/characteristics (the increase of the effective contact area, porosity, etc.). Lastly, the comparison between uncoated and coated engine have shown that maximal gains around 5% in heat loss could be achieved, with very limited efficiency improvement, whereas the knock tendency increases. es_ES
dc.description.sponsorship J. Gomez-Soriano is partially supported through the Programa de Apoyo para la Investigation y Desarrollo (PAID) of Universitat Politecnica de Valencia [Grant No. FPI-S2-2016-1353]. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation COMISION DE LAS COMUNIDADES EUROPEA/724084 es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Spark-ignited engine es_ES
dc.subject CFD modelling es_ES
dc.subject Insulation coatings es_ES
dc.subject Heat transfer es_ES
dc.subject Knock es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.subject.classification INGENIERIA AEROESPACIAL es_ES
dc.title Numerical simulations for evaluating the impact of advanced insulation coatings on H2 additivated gasoline lean combustion in a turbocharged es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2018.11.106 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/724084/EU es_ES
dc.rights.accessRights Abierto 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 Broatch, A.; Olmeda, P.; Margot, X.; Gómez-Soriano, J. (2019). Numerical simulations for evaluating the impact of advanced insulation coatings on H2 additivated gasoline lean combustion in a turbocharged. Applied Thermal Engineering. 148:674-683. https://doi.org/10.1016/j.applthermaleng.2018.11.106 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.applthermaleng.2018.11.106 es_ES
dc.description.upvformatpinicio 674 es_ES
dc.description.upvformatpfin 683 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 148 es_ES
dc.relation.pasarela S\373702 es_ES
dc.contributor.funder European Commission es_ES


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