Morales López, Jesús(Universitat Politècnica de València, 2022-07-13)
[ES] Utilizando la tecnología cada vez más popular y en constante crecimiento de las pilas de combustible basadas en hidrógeno, dadas sus ventajas ambientales sobre los combustibles fósiles. Más concretamente, partiendo ...
[EN] The mixing of isothermal liquid sprays in engine-like conditions has been investigated by applying the structured planar laser imaging technique to remove multiple light scattering. The intensity of the illumination ...
[EN] New regulations applied to the transportation sector are widening the operation range where the pollutant emissions are evaluated. Besides ambient temperature, the driving altitude is also considered to reduce the gap ...
Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael(Elsevier, 2018)
[EN] This work compares the performance and emissions of two dual-mode combustion concepts over different driving cycles by means of vehicle systems simulations. The dual-mode concept relies on switching between the dual-fuel ...
[EN] One of the most attractive ways to tackle vehicle engine's inefficiencies is the use of Low Viscosity Engine Oils (LVEO). Adopted some decades ago for their use in the Light Duty segment, LVEO are now reaching the ...
[EN] Low viscosity engine oils have shown to be an effective solution to the fuel consumption reduction target, however, their potential is closely linked to the vehicle and engine design and to the real driving conditions. ...
Pastor Soriano, José Vicente; García Oliver, José María; NERVA, JEAN-GUILLAUME; Giménez, Blanca(Elsevier, 2011-11)
Measurements of the maximum liquid-phase penetration have been performed injecting five different fuels through a single-hole nozzle in an optical engine under a large set of thermodynamic and injection conditions. The ...
[EN] The air pressure change as a function of the driving altitude affects negatively the engine performance and emissions as well as the efficiency of the exhaust aftertreatment systems (ATS). These detrimental effects ...
[EN] Measuring Fuel Poverty is a requirement for the correct sizing and the better understanding of the problem.
Valencia¿s city council (Spain) commissioned a study based on primary data, i.e. direct interviews to the ...
García Martínez, Antonio; Monsalve-Serrano, Javier; Villalta-Lara, David; Lago-Sari, Rafael(Elsevier, 2019-12-01)
[EN] The dual-mode dual-fuel combustion is a promising combustion concept to achieve the required emissions and carbon dioxide reductions imposed by the next emissions standards. Nonetheless, since the combustion concept ...
Njere, Darlington; Emekwuru, Nwabueze(Editorial Universitat Politècnica de València, 2017-07-28)
[EN] The evolution of diesel fuel injection technology, to facilitate strong correlations of in-cylinder spray propagation
with injection conditions and injector geometry, is crucial in facing emission challenges. More ...
Payri Marín, Raúl; García Oliver, José María; Bardi, Michele; MANIN, JULIEN(Elsevier, 2012-03)
The detailed knowledge of the evaporationecombustion process of the Diesel spray is a key factor for the
development of robust injection strategies able to reduce the pollutant emissions and keep or increase
the combustion ...
Salvador Rubio, Francisco Javier; Gimeno, Jaime; Carreres Talens, Marcos; Crialesi Esposito, Marco(Elsevier, 2016-04-15)
An experimental study is conducted in this paper in order to assess the influence of the fuel temperature on the performance of a last generation common-rail ballistic solenoid injector. Mass flow rate measurements are ...
Payri, Raul; Salvador Rubio, Francisco Javier; Carreres Talens, Marcos; De La Morena, Joaquín(Elsevier, 2016-04-15)
A one-dimensional model of a solenoid-driven common-rail diesel injector has been developed in order to study the influence of fuel temperature on the injection process. The model has been implemented after a thorough ...
[EN] The impact of short-circuit pulses on the after-treatment system of a spark-ignited engine must be taken into account to keep the fuel-to-air equivalence ratio within the three-way catalyst window, thereby reducing ...