Payri, Raul; García Oliver, José María; Xuan, Tiemin; Bardi, Michele(Elsevier, 2015-11-05)
The shape of Diesel spray was investigated at real engine conditions in a constant pressure combustion chamber. Schlieren imaging technique was used to make quantitative measurements of spray tip penetration and radial ...
[EN] The objective of this study is to explore the limits of a one-dimensional model to predict the movement and mixing of the air and exhaust gases recirculation (EGR) flows in compact intake manifolds of recent automotive ...
García-Oliver, José M; Malbec, Louis-Marie; Toda, Hubert Baya; Bruneaux, Gilles(Elsevier, 2017-05)
[EN] A detailed study on the spray local flow and flame structure has been performed by means of PIV and laser-sheet LIF techniques under Diesel spray conditions. Operating conditions were based on Engine Combustion Network ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Arnau Martínez, Francisco José; Reyes Belmonte, Miguel Ángel; Tartoussi, Hadi(Elsevier, 2015-10-05)
Nowadays turbochargers play an important role in improving internal combustion engines (ICE) performance.
Usually, engine manufacturers use computer codes to predict the behaviour of both engine
and turbocharger, the ...
[EN] Gasoline direct injection (GDI) nozzles are manufactured to meet geometric specifications with length scales on
the order of a few hundred microns. The machining tolerances of these nominal dimensions are not always ...
Desantes J.M.; García-Oliver, José M.; Xuan, Tiemin; Vera-Tudela-Fajardo, Walter Martin(Elsevier, 2017)
[EN] The reacting diesel spray structure was investigated using n-dodecane, n-heptane and one binary blend of Primary Reference Fuels (80% n-heptane and 20% iso-octane in mass) based on the existing database from previous ...
Pachano, Leonardo; Xu, Chao; García-Oliver, José M; Pastor Enguídanos, José Manuel; Novella Rosa, Ricardo; Kundu, Prithwish(Elsevier, 2021-09)
[EN] Soot production (including formation and oxidation) is studied in the transient, high-pressure and turbulent n -dodecane Spray A flames from the Engine Combustion Network (ECN) using computational fluid dynamics (CFD) ...
[EN] Considerable efforts have been devoted to the development of predictive models that, from a certain set of data related to an engine, and making use of an adequate representation of the effect of the silencing elements, ...
[EN] Zero-dimensional/one-dimensional computational fluid dynamics codes are used to simulate the performance of complete internal combustion engines. In such codes, the operation of a turbocharger compressor is usually ...
Gimeno Cebrián, Javier(Universitat Politècnica de València, 2018-10-16)
[CA] En el present document s'analitzen els accidents succeïts en els últims 5 anys per a tractar de comprendre per què ocorren i com es pot actuar de manera que es minimitzen tant el nombre d'accidents com la gravetat d ...
[ES] Debido al fenómeno del calentamiento global, las emisiones de CO2 y la reducción del consumo de combustible en el transporte por carretera se han convertido en algunas de las preocupaciones más relevantes en el sector ...
Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Boronat-Colomer, Vicente(Elsevier, 2017-03-15)
[EN] This experimental work investigates the capabilities of the reactivity controlled compression ignition combustion concept to be operated in the whole engine map and discusses its benefits when compared to conventional ...
Crialesi Esposito, Marco(Universitat Politècnica de València, 2017-08-29)
The understanding of the combustion process in energy generation, both for stationary purpose or for propulsion, is becoming more and more demanding as the technology progress toward a cleaner combustion able to reduce the ...
Torres Pons, Alfredo Francisco(Universitat Politècnica de València, 2023-10-17)
[ES] Los programas de dinámica de fluidos computacional (o CFD, por sus siglas en inglés) permiten obtener soluciones detalladas en problemas complejos de dinámica de fluidos. Como regla general, cuanto más complejo es el ...
Redondo Navarro, Álvaro Rafael(Universitat Politècnica de València, 2023-06-26)
[ES] Las normativas sobre emisiones contaminantes y sonoras, cada vez más estrictas, han sido la principal motivación para la investigación, el desarrollo y la optimización de los motores de combustión y demás tecnologías ...
[EN] The operation of compressor at lower mass flow rates is limited by surge which is marked by large fluctuations in operational variables and accompanied by significant increase in noise. Ported shroud casing treatment ...
Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K.(Elsevier, 2019-12)
[EN] With the advancements in manufacturing, materials and computational methods, turbomachinery designs have become more efficient providing higher specific power and reliability with lower weight and cost. The rotational ...
Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K.(SAGE Publications, 2020-10)
[EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic ...
Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Navarro García, Roberto; García Tíscar, Jorge(SAGE Publications (UK and US), 2015-01)
The performance of different experimental techniques proposed in the literature for acoustic characterization was
assessed through the study of the noise generated by the compressor of an automotive turbocharger under ...
Calbo Domene, Álex(Universitat Politècnica de València, 2023-10-26)
[ES] El siguiente trabajo tiene como objetivo actualizar el banco de ensayo de prácticas del Departamento de Máquinas y Motores Térmicos para replicar un sistema de propulsión híbrido (motor térmico + motor eléctrico), ...