Salvador, F.J.; De La Morena, Joaquín; Martínez López, Jorge; Jaramillo-Císcar, David(Elsevier, 2017)
[EN] Diesel fuel injection systems are being used at higher injection pressure conditions over time because of more stringent emissions requirements. Thus, the importance to properly take into account the fluid compressibility ...
García Castelló, Marcos(Universitat Politècnica de València, 2022-07-19)
[EN] Recent studies have shown that the use of a premixed flame inside a combustion
chamber may involve a certain operational instability, which appears when the premixed flame propagates against the main flow direction ...
Piqueras, P.; De La Morena, Joaquín; Bares-Moreno, Pau; Sanchis Pacheco, Enrique José(John Wiley & Sons, 2021-11-11)
[EN] In the current paper, a methodology combining a case study with a computational tool for aerospace engineering students is presented and discussed. The aim of this methodology is to improve the understanding of jet ...
García Martínez, Antonio; De La Morena, Joaquín; Monsalve-Serrano, Javier; Lago-Sari, Rafael; Tunestal, Per(Elsevier, 2021-07-15)
[EN] Recent outlooks suggest a long-term relevance of internal combustion engines for both power generation and transportation. Nonetheless, stringent pollutant reduction requirements combined with new CO2 mandates draws ...
Macian Martinez, Vicente; Salvador, Francisco Javier; De La Morena, Joaquín; Pagano, V.(Elsevier, 2021-10)
[EN] In the current work, the combustion process inside a stratified pre-chamber ignition system is analyzed. The pre-chamber is installed on a Rapid Compression-Expansion Machine (RCEM) and runs at different combinations ...
Salvador, Francisco Javier; De La Morena, Joaquín; Crialesi Esposito, Marco; Martínez López, Jorge(SAGE Publications, 2018)
[EN] The motion of the needle during the injection process of a diesel injector has a marked influence on the internal flow, the fuel characteristics at the nozzle exit, the spray pattern and the fuel-air mixing process. ...
Salvador, Francisco Javier; Gimeno, Jaime; De La Morena, Joaquín; Carreres, Marcos(Springer-Verlag, 2018)
[EN] The geometry of certain parts of diesel injectors is key to the injection, atomization and fuel-air mixing phenomena. Small variations on the geometrical parameters may have a strong influence on the aforementioned ...
Galindo, José; Climent, H.; De La Morena, Joaquín; González-Domínguez, David; Guilain, Stéphane; Besançon, Thomas(MDPI AG, 2022-02)
[EN] Automotive manufacturers are showing an increasing preference for hybrid powertrains based on advanced gasoline engines. The most extended solution to improve fuel economy in these engines consists in downsizing with ...
Salvador, Francisco Javier; Carreres, Marcos; De La Morena, Joaquín; Martínez-Miracle-Muñoz, Enrique Carlos(Elsevier, 2018)
[EN] This paper conducts an investigation on the temperature variations experienced by the fuel when it expands through the calibrated orifices of a commercial diesel injector. Experimental results of the temperature change ...
Salvador, Francisco Javier; De La Morena, Joaquín; Bracho Leon, Gabriela; Jaramillo-Císcar, David(Springer-Verlag, 2018)
[EN] Currently, diesel engines are calibrated using more and more complex multiple injection strategies. Under these conditions, the characteristics of the flow exiting the fuel injector are strongly affected by the transient ...
Salvador, Francisco Javier; Pastor Enguídanos, José Manuel; De La Morena, Joaquín; Martínez-Miracle-Muñoz, Enrique Carlos(Elsevier, 2020-08)
[EN] The present work analyses the effect of the eccentricity of diesel nozzle orifices over the spray behaviour by means of CFD simulations. Several orifice geometries with varying horizontal eccentricity (from 0.50 to ...
Salvador Rubio, Francisco Javier; Ruiz Rosales, Santiago; Salavert Fernández, José Miguel; De La Morena Borja, Joaquín(SAGE Publications (UK and US), 2013-08)
A study of the injection process and spray behaviour was made for three different fuels. In particular, blends of rapeseed methyl ester and standard diesel fuel with 5% and 30% biodiesel were used for the current study, ...
Pla Moreno, Benjamín; De La Morena, Joaquín; Bares-Moreno, Pau; Jimenez, Irina Ayelen(SAGE Publications, 2020-10)
[EN] A control-oriented model of spark ignition combustion is presented. The model makes use of avaliable signals, such as spark advance, air mass, intake pressure, and lambda, to characterize not only the average combustion ...
Llacer Escodar, David(Universitat Politècnica de València, 2021-09-03)
[ES] En la actualidad, debido a las continuas restricciones en materia de emisiones de gases producidas por los motores para reducir los efectos dañinos en el medio ambiente, es necesario estudiar con detalle el proceso ...
Palau Martínez, Rubén(Universitat Politècnica de València, 2022-09-07)
[ES] Dentro de la estrategia de electrificación de las plantas propulsivas de vehículos se evalúa el uso de motores de encendido provocado de aspiración natural como forma de contener el coste respecto a los motores ...
Novella Rosa, Ricardo; De La Morena, Joaquín; López-Juárez, Marcos; Nidaguila, I.(Elsevier, 2023-10-01)
[EN] The current trend towards a zero-emission transport sector has increased the interest of the scientific community and the industry in fuel cell (FC) technologies in the past few years. Previous studies have focused ...
López, J. Javier; De La Garza De Leon, Oscar; De La Morena, Joaquín; Martínez Martínez, Simón(SAGE Publications, 2017)
[EN] A study to experimentally analyze the effect of cavitation on the mixing process in diesel nozzles was carried out. The mixing process was studied through the spray cone angle. It was characterized in two different ...
Piqueras, P.; De La Morena, Joaquín; Bares-Moreno, Pau; Sanchis Pacheco, Enrique José(EscuelaTécnica Superior de Ingeniería del Diseño. Universitat Politècnica de València, 2022-07-22)
[ES] En este trabajo se muestran los resultados obtenidos de aplicar la herramienta del portafolio
en asignaturas del Área de Máquinas y Motores Térmicos del Grado en Ingeniería Aeroespacial
de la UPV. Se pretende mejorar ...
Salvador Rubio, Francisco Javier; Ruiz Rosales, Santiago; Gimeno, Jaime; De La Morena Borja, Joaquín(Elsevier, 2011-09)
The aim of this paper is to estimate a suitable range for the Schmidt number value in non-evaporative diesel sprays. For this purpose, mass distribution data obtained from X-ray absorption experiments existing in literature ...
Paraschivoiu, Raquel Andreea(Universitat Politècnica de València, 2023-09-12)
[ES] El amoníaco como combustible se plantea como una de las alternativas para alcanzar la descarbonización del sector del transporte por su capacidad para ser transportado en fase líquida en condiciones de temperatura y ...