Mostrar el registro sencillo del ítem
dc.contributor.author | Serrano, J.R. | es_ES |
dc.contributor.author | Bermúdez, Vicente | es_ES |
dc.contributor.author | Piqueras, P. | es_ES |
dc.contributor.author | Angiolini, Emanuele | es_ES |
dc.date.accessioned | 2018-06-04T04:19:23Z | |
dc.date.available | 2018-06-04T04:19:23Z | |
dc.date.issued | 2017 | es_ES |
dc.identifier.issn | 0021-8502 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/103285 | |
dc.description.abstract | [EN] the current work a computational study to evaluate the effect of the DPF downsizing on filtration efficiency is performed. The DPF is conventionally placed downstream of the turbine. However, its placement upstream of the turbine is growing in interest because of the benefits in specific fuel consumption, passive regeneration and aptitude to downsizing. Hence both pre- and post-turbine placement are considered in presence of clean and soot loaded substrates. An in-house 1D wall-flow DPF model for unsteady compressible flow is used. Volume reduction is approached considering diameter and length variation. In parallel, the cell density is also varied modifying the meso-geometry, i.e. cell size and porous wall thickness, imposing constant thermal integrity factor. The sensitivity to this last parameter is also analysed resulting its influence of second order in comparison to volume and cellular geometry effects. The lower Peclet number in the pre-turbine placement leads to higher filtration efficiency than post-turbine location comparing at the same DPF volume. Diameter based volume reduction provides slightly better results in filtration efficiency than length based reduction because of the way the filtration velocity field is varied. This general behaviour involves additional advantages to the potential for volume reduction of pre-turbine DPFs. Thus, different strategies with boundaries defined by volume reduction at constant filtration area or at constant specific filtration area can be approached looking for the best balance between fuel economy reduction and filtration efficiency increase provided by pre-turbine DPF placement. | es_ES |
dc.description.sponsorship | This work has been partially funded by FEDER and Government of Spain through Project No. TRA2016-79185-R. Additionally, the Ph.D. student E. Angiolini has been funded by a grant from Conselleria de Educacio, Cultura i Esport of the Generalitat Valenciana with reference GRISOLIA/2013/036. These supports are gratefully acknowledged by the authors. | en_EN |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Journal of Aerosol Science | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Diesel engine | es_ES |
dc.subject | Particulate matter | es_ES |
dc.subject | DPF sizing | es_ES |
dc.subject | Cell size | es_ES |
dc.subject | Filtration efficiency | es_ES |
dc.subject | Pre-turbine aftertreatment | es_ES |
dc.subject.classification | INGENIERIA AEROESPACIAL | es_ES |
dc.subject.classification | MAQUINAS Y MOTORES TERMICOS | es_ES |
dc.title | On the impact of DPF downsizing and cellular geometry on filtration efficiency in pre- and post-turbine placement | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.jaerosci.2017.07.014 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//TRA2016-79185-R/ES/DESARROLLO DE HERRAMIENTAS EXPERIMENTALES Y COMPUTACIONALES PARA LA CARACTERIZACION DE SISTEMAS DE POST-TRATAMIENTO DE GASES DE ESCAPE EN MOTORES DE ENCENDIDO POR COMPRESION/ | 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 | Serrano, J.; Bermúdez, V.; Piqueras, P.; Angiolini, E. (2017). On the impact of DPF downsizing and cellular geometry on filtration efficiency in pre- and post-turbine placement. Journal of Aerosol Science. 113:20-35. https://doi.org/10.1016/j.jaerosci.2017.07.014 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.jaerosci.2017.07.014 | es_ES |
dc.description.upvformatpinicio | 20 | es_ES |
dc.description.upvformatpfin | 35 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 113 | es_ES |
dc.relation.pasarela | S\342259 | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |