[EN] The combination of more strict regulation for pollutant and CO2 emissions and the new testing cycles, covering a wider range of transient conditions, makes very interesting the development of predictive tools for ...
[EN] Due to the need to achieve a fast warm-up of the after-treatment system in order to fulfill the pollutant emission regulations, a growing interest has arisen to adopt variable valve timing technology for automotive ...
Moya Torres, Francisco(Universitat Politècnica de València, 2016-09-15)
[ES] En este Trabajo Final de Grado, el problema que se tratará, y que Volvo Trucks nos planteó, se
encuentra dentro de la tendencia de las marcas de automoción en reducir las emisiones
contaminantes de ...
Sirvent Sanjosé, Roberto Andrés(Universitat Politècnica de València, 2016-12-21)
El trabajo consiste en el diseño del sistema de admisión y escape de un motor dual-fuel para transporte pesado. Se deberá seleccionar la arquitectura adecuada para poder conseguir las condiciones de deseadas en el interior ...
[EN] As well as new advances in the after-treatment systems are required
to achieve the new pollutant emission requirements, new designs of
the exhaust line can be considered in order to increase the engine
efficiency and ...
Martínez López, Ignacio José(Universitat Politècnica de València, 2021-11-04)
[ES] La finalidad de este Trabajo Final de Grado es el estudio de la viabilidad de la oxicombustión en un motor marino diésel de dos tiempos aportado por la empresa Wärtsilä.
Para realizar el estudio, Wärtsilä envió el ...
Calero Labián, Álvaro(Universitat Politècnica de València, 2020-07-09)
[ES] Las exigencias de las normativas en cuanto a emisiones de CO2 ha empujado a los investigadores y fabricantes de motores maximizar la eficiencia de sus unidades de potencia. Con este objetivo se ha desarrollado por una ...
Pedrós Raimundo, Francesc(Universitat Politècnica de València, 2019-07-26)
[ES] En este Trabajo de Fin de Grado, se han realizado diferentes estudios acerca del popular motor diésel sobrealimentado de 1.6 litros de cilindrada fabricado por Renault y conocido por las siglas R9M, ...
Dombrovsky, Artem(Universitat Politècnica de València, 2015-06-16)
[EN] Nowadays, the regulation of pollutant emissions of reciprocating internal combustion engines becomes
more and more restrictive. One of the main strategies to reduce those emissions is the reduction of engine
volume ...
Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Samala, Vishnu; Smith, Les(Elsevier, 2019-08)
[EN] In an internal combustion engine, twin entry turbine operates under different unequal admission conditions by feeding the turbine with a dissimilar amount of flow in each entry for a majority of the time. Despite of ...
[EN] Nowadays, the turbocharger has become one of the key components for automotive spark-ignition engine
improvements (fed with both liquid and gaseous fuels), as a support for the boosting and downsizing concept to ...
Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo; Cheung, Raymond(SAGE Publications, 2021-02)
[EN] This article presents the experimental validation of a complete integrated one-dimensional twin-scroll turbine model able to be used in reciprocating internal combustion engine unsteady simulations. A passenger car ...
Galindo, José; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo(SAGE Publications, 2018-07-20)
[EN] This article presents the experimental validation of a quasi-two-dimensional radial turbine model able to be used in turbocharged reciprocating internal combustion engine simulations. A passenger car variable-geometry ...
[EN] The behavior of small turbochargers is deeply affected by heat transfer phenomena. The external heat losses of these machines are studied and a simplified model that takes into account both radiation and convective ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Arnau Martínez, Francisco José; Dombrovsky, Artem(SAE International, 2014-10)
These days many research efforts on internal combustion engines are centred on optimising turbocharger matching and
performance on the engine. In the last years a number of studies have pointed out the strong effect on ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Arnau Martínez, Francisco José; Reyes Belmonte, Miguel Ángel; Lefebvre, Alain(SAE International, 2013)
[EN] Nowadays turbocharging the internal combustion engine has become a key point in the reduction on pollutant emissions and the improvement on engine performance. The matching between the turbocharger and the engine is ...
Payri, F.; Arnau Martínez, Francisco José; Piqueras, Pedro; Ruiz Lucas, María José(SAE Internacional, 2018-04-03)
[EN] The increasingly restrictive legislation on pollutant emissions is involving new homologation procedures driven to be representative of real driving emissions. This context demands an update of the modelling tools ...
Parra Martínez, Javier(Universitat Politècnica de València, 2015-07-22)
[ES] Un modelo de simulación presenta muchas ventajas en el campo del desarrollo de motores de
combustión internar alternativos. Por un lado, permiten entender la naturaleza de los fenómenos
físicos que suceden en el ...
Torregrosa, A. J.; Broatch, A.; Arnau Martínez, Francisco José; Hernández-Marco, Manuel(Elsevier, 2017-11)
[EN] A suitable tool for the design of intake and exhaust systems of internal combustion engines is provided by time domain non-linear finite volume models. These models, however, are affected by overshoots at discontinuities ...
Galindo, José; Tiseira Izaguirre, Andrés Omar; Arnau Martínez, Francisco José; Lang, Ricardo Héctor(Society for Experimental Mechanics (SEM), 2013-02)
In this article a new experimental technique is presented to measure the
turbocharger surge limit in a regular engine test bench. It is known that the
surge margin on engine tests may be very different from that obtained ...