- -

Trends and Limits of Two-Stage Boosting Systems for Automotive Diesel Engines

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Trends and Limits of Two-Stage Boosting Systems for Automotive Diesel Engines

Show simple item record

Files in this item

dc.contributor.advisor Galindo Lucas, José es_ES
dc.contributor.author Varnier ., Olivier Nicolás es_ES
dc.date.accessioned 2012-07-26T06:42:29Z
dc.date.available 2012-07-26T06:42:29Z
dc.date.created 2012-07-23T08:00:00Z es_ES
dc.date.issued 2012-07-26T06:42:23Z es_ES
dc.identifier.uri http://hdl.handle.net/10251/16880
dc.description.abstract Internal combustion engines developments are driven by emissions reduction and energetic efficiency increase. To reach the next standards, downsized/downspeeded engines are required to reduce fuel consumption and CO2 emissions. These techniques place an important demand on the charging system and force the introduction of multistage boosting architectures. With many possible arrangements and large number of parameter to optimize, these architectures present higher complexity than current systems. The objective of this thesis has thus been to investigate the potential of two-stage boosting architectures to establish, for the particular case of passenger car downsized/downspeeded Diesel engines, the most efficient solutions for achieving the forthcoming CO2 emissions targets. To respond to this objective, an exhaustive literature review of all existing solutions has first been performed to determinate the most promising two-stage boosting architectures. Then, a new matching methodology has been defined to optimize the architectures with, on the one hand the development of a new turbine characteristic maps representation allowing straight forward matching calculations and, on the other hand, the development of a complete 0D engine model able to predict, within a reduced computational time, the behavior of any boosting architecture in both steady state and transient operating conditions. Finally, a large parametric study has been carried out to analyze and compare the different architectures on the same base engines, to characterize the impacts of thermo-mechanical limits and turbocharger size on engine performance, and to quantify for different engine development options their potential improvements in term of fuel consumption, maximum power and fun to drive. As main contributions, the thesis provides new modeling tools for efficient matching calculations and synthesizes the main trends in advanced boosting systems to guide future passenger car Diesel engine develop es_ES
dc.language Inglés es_ES
dc.rights Reserva de todos los derechos es_ES
dc.source Riunet es_ES
dc.subject Diesel engine es_ES
dc.subject Downsizing es_ES
dc.subject Downspeeding es_ES
dc.subject Boosting system es_ES
dc.subject Two-stage turbocharging es_ES
dc.subject Engine modeling es_ES
dc.subject Matching es_ES
dc.subject Turbine maps es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Trends and Limits of Two-Stage Boosting Systems for Automotive Diesel Engines
dc.type Tesis doctoral es_ES
dc.identifier.doi 10.4995/Thesis/10251/16880 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 Varnier ., ON. (2012). Trends and Limits of Two-Stage Boosting Systems for Automotive Diesel Engines [Tesis doctoral no publicada]. Universitat Politècnica de València. doi:10.4995/Thesis/10251/16880. es_ES
dc.description.accrualMethod Palancia es_ES
dc.type.version info:eu repo/semantics/acceptedVersion es_ES
dc.relation.tesis 3887 es_ES


This item appears in the following Collection(s)

Show simple item record