Mora Pérez, Javier(Universitat Politècnica de València, 2019-01-21)
[ES] Esta tesis doctoral abarca el desarrollo de algoritmos orientados a mejorar el sistema de control de emisiones en motores Diesel. Para este propósito, la inclusión en el vehículo de sensores embarcados como los de ...
Morón Peiró, Óscar(Universitat Politècnica de València, 2018-09-25)
[ES] Numerosos estudios han evidenciado las claras discrepancias entre las emisiones homologadas y las que se producen en condiciones de conducción real. De ahí que exista un profundo consenso por la necesidad de normativas ...
Auñón García, Ángel(Universitat Politècnica de València, 2021-07-05)
[ES] Las nuevas regulaciones en materia de emisiones de efecto invernadero y calidad del aire han conducido la evolución tecnológica de los motores de combustión interna durante los últimos años. Las mejoras en el proceso ...
Tabet Aleixandre, Roberto(Universitat Politècnica de València, 2022-06-27)
[ES] Las normativas cada vez más restrictivas sobre las emisiones contaminantes de los vehículos de motor impuestas por la Unión Europea han obligado a los fabricantes de equipos originales (OEM) a proporcionar a los centros ...
[EN] From the different power plants, the compression ignition diesel engines are considered the best alternative to be used in the transport sector due to its high efficiency. However, the current emission standards impose ...
Tamaki, Nobushige; Harada, Takato(Editorial Universitat Politècnica de València, 2017-07-28)
[EN] The purpose of this study is to improve the spray characteristics of a direct injection Diesel nozzle. Spray
atomization of the multi-hole atomization enhancement nozzle, which was invented in previous studies, is ...
Bermúdez, Vicente; Luján, José M.; Plá Moreno, Benjamín; Linares Rodríguez, Waldemar Gregorio(Elsevier, 2011-09)
Regulated and unregulated gaseous emissions with high pressure and low pressure EGR (exhaust gas recirculation) system were tested in a 4-cylinder, light-duty diesel EURO IV engine typically used in European vehicles. Four ...
Campos Navarro, Daniel(Universitat Politècnica de València, 2014-05-12)
[ES] Evaluacion de las emisiones contaminantes reguladas y no reguladas provinientes de un motor Diesel
sobrealimentado dotado con diferentes arquitecturas y sistemas de post-tratamiento de gas de escape
Luján, José M.; Climent, H.; Plá Moreno, Benjamín; Rivas Perea, Manuel Eduardo; Francois, Nicolas-Yoan; Borges Alejo, José; Soukeur, Zoulikha(Elsevier, 2015-10-05)
Current diesel engines are struggling to achieve exhaust emissions regulations margins, in certain cases penalizing the fuel consumption. The exhaust gas recirculation (EGR) continues to be employed as a technique to reduce ...
Torregrosa, A. J.; Bermúdez, Vicente; Olmeda González, Pablo Cesar; Figueroa García, Olga Ligia(Elsevier, 2012-02)
The main goal of this work is to validate an innovative experimental facility and to establish a methodology to evaluate the influence of some of the engine parameters on local engine heat transfer behaviour under motored ...
Lujan Martinez, José Manuel; Serrano Cruz, José Ramón; Piqueras Cabrera, Pedro; García Afonso, Óscar(Elsevier, 2015-02-01)
This paper corresponds to the second part of a work devoted to analyse the impact of the pre-turbo aftertreatment configuration on the performance of a single stage turbocharged Diesel engine. This second part focuses on ...
Luján, José M.; Bermúdez, Vicente; Piqueras, P.; García Afonso, Óscar(Elsevier, 2015-02-01)
Diesel oxidation catalysts and diesel particulate filters are standard aftertreatment systems in Diesel engines which are traditionally placed downstream of the turbine. However, pre-turbo aftertreatment configurations are ...
Bermúdez, Vicente; Pastor Soriano, José Vicente; López, J. Javier; Campos, Daniel(IOP Publishing: Hybrid Open Access, 2014-06)
A study of soot measurement deviation using a diffusion charger sensor with three dilution ratios was conducted in order to obtain an optimum setting that can be used to obtain accurate measurements in terms of soot mass ...
[EN] After-treatment systems are necessary to respect the pollutant emissions thresholds specified by regulations. However, due to system ageing, the efficiency of the after-treatment system may decrease and affect the ...
Wall-flow particulate filters have been placed as a standard technology for Diesel engines because of the increasing restrictions to soot emissions. The inclusion of this system within the exhaust line requires the development ...
A filtration model for wall-flow particulate filters based on the theory of packed beds of spherical particles
is presented to diagnose the combined response of filtration efficiency and pressure drop from a
reliable ...
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 ...
NERVA, JEAN-GUILLAUME; Genzale, Caroline L.; Kook, Sanghoon; García Oliver, José María; Pickett, Lyle M.(SAGE Publications (UK and US), 2013-08)
Although biodiesel has begun to penetrate the fuel market, its effect on injection processes, combustion and emission formation under diesel engine conditions remains somewhat unclear. Typical exhaust measurements from ...
This paper describes the study of different bottoming Rankine cycles with water-steam and/or ORC configurations in classical and innovative setups such as a waste heat recovery system in a Heavy Duty Diesel (HDD) Engine. ...
Serrano Cruz, José Ramón; Dolz Ruiz, Vicente; Novella Rosa, Ricardo; García Martínez, Antonio(Elsevier, 2012-04)
A theoretical investigation has been performed on the feasibility of introducing a waste heat recovery (WHR) system in a two-stage turbocharged HDD engine. The WHR is attained by introducing a Rankine cycle, which uses an ...