[EN] An investigation on the acoustic transmission loss and the pressure drop caused by a mixer inducing element located downstream of a Diesel Exhaust Fluid (DEF) injection port was carried out in order to reduce the ...
[EN] In recent years, due to the increasing need to reduce consumption of reciprocating internal combustion engines, new researches on different subsystems have raised. Among them, the use of nanofluids as a coolant medium ...
García Tíscar, Jorge(Universitat Politècnica de València, 2015-06-02)
[EN] The present work addresses the necessity of accurate and reliable characterization of the noise produced by the turbocomrpessors of reciprocating internal combustion engines. Experimental research on the matter has ...
Cañada Rueda, Miguel Ángel(Universitat Politècnica de València, 2021-01-08)
[ES] Durante la realización del presente proyecto, se han llevado a cabo ensayos de atenuación acústica en la instalación del Banco de Impulsos ubicado en el Laboratorio de Máquinas y Motores Térmicos.
En el presente ...
In the last decade, different advanced combustion concepts based on generating totally or partially
premixed conditions have been investigated in CI (compression ignition) engines with the aim of
achieving lower NOx ...
Intake noise has become one the main concerns in the design of highly-supercharged downsized engines, which are expected to play a
significant role in the upcoming years. Apart from the low frequencies associated with ...
Gómez Soriano, Josep(Editorial Universitat Politècnica de València, 2018-11-16)
Las crecientes exigencias de la industria están cambiando la forma en que entendemos la sociedad y el entorno en el que vivimos. Frente a la necesidad de un comercio rápido y globalizado, están emergiendo varios problemas ...
[EN] To comply with the very strict emissions regulation the automotive industry is succeeding in developing ever more efficient engines, and there is scope for more improvements. In this regard, some investigations have ...
Mónico Muñoz, Luisa Fernanda(Universitat Politècnica de València, 2013-01-25)
Actualmente, el mundo se enfrenta a dos crisis desde el punto de vista ambiental: la escasez de combustibles fósiles y la degradación ambiental. Según las proyecciones para el año 2020 el uso de vehículos se triplicará y ...
Mónico Muñoz, Luisa Fernanda(Universitat Politècnica de València, 2011-07-26)
Evaluación de las repercusiones acústicas del concepto de combustión PCCI desarrollado para reducir emisiones; y del uso de biocombustibles como un sustituto de combustibles derivados del petroleo. Los resultados muestran ...
Monelletta, Luca(Universitat Politècnica de València, 2011-05-27)
Despite their important advantages in terms of fuel consumption in comparison with gasoline engines, for a long time the characteristic impulsive combustion noise has been one of the main causes why customers are reluctant ...
[EN] The need to increase measurement accuracy of fuel consumption and pollutant emissions
in vehicles is forcing the market to develop chassis-dyno test cells that reproduce on-road
conditions realistically.
Air-cooling ...
Dreif Bennany, Amin(Universitat Politècnica de València, 2018-10-01)
[ES] El presente Trabajo Final de Máster consistió en desarrollo de una metodología para la
caracterización del flujo a lo largo de líneas de escape de motores de automoción en el
Departamento de Motores y de Máquinas ...
Broatch Jacobi, Jaime Alberto; Guardiola, Carlos; Bares-Moreno, Pau; Denia Guzmán, Francisco David(SAGE Publications (UK and US), 2016)
[EN] Cylinder resonance phenomenon in reciprocating engines consists of high-frequency pressure oscillations excited by the combustion. The frequency of these oscillations is proportional to the speed of sound on pent-roof ...
[EN] To face the current challenges of the automotive industry, there is a need for computational models capable to simulate the engine behavior under low-temperature and low-pressure conditions. Internal combustion engines ...
[EN] Knock is a major bottleneck to achieving higher thermal efficiency in spark-ignited (SI) engines. The overall tendency to knock is highly dependent on fuel anti-knock quality as well as engine operating conditions. ...
[EN] Due to the climate crisis and the restriction measures taken in the last decade, electric buses are gaining popularity in the transport sector. However, one of the most significant disadvantages of this type of vehicle ...
Bonet Mira, Joaquín(Universitat Politècnica de València, 2015-10-28)
Diseño y puesta en marcha de un sistema para el control de las condiciones termodinámicas del flujo de aire de un banco de flujo caliente para la caracterización de turbogrupos de sobrealimentación de motores de combustión ...