Moreno, Armando Enrique(Universitat Politècnica de València, 2022-03-28)
[ES] La industria y la comunidad investigadora están trabajando para desarrollar herramientas y tecnologías que contribuyan a la reducción de emisiones contaminantes. Uno de los sectores afectados por la normativa ...
[EN] The injection process of the urea-water solution (UWS) determines the initial conditions for the mixing and evaporation of the fluid in the selective catalytic reduction system. In this study, the liquid atomization ...
[EN] The present study gives a general outline for the fluid-dynamical calculation of flows at high pressure conditions. The main idea is to present a mathematical description of high pressure processes in liquids at ...
Spohr Fernandes, Cássio(Universitat Politècnica de València, 2020-12-21)
[ES] Con el fin de mejorar la eficiencia y reducir el consumo de combustible y las emisiones de los motores, los códigos CFD se utilizan ampliamente en la simulación de motores. Estas herramientas computacionales pueden ...
[EN] Selective Catalytic Reduction stands for an effective methodology for the reduction of NOx emissions from Diesel engines and meeting current and future EURO standards. For it, the injection of Urea Water Solution (UWS) ...
Guerra Gil, Irene(Universitat Politècnica de València, 2020-04-06)
[ES] En este trabajo de fin de grado diferentes modelos de los ciclos de energía serán evaluados. Los sistemas de cogeneración y los ciclos energéticos son muy importantes hoy en día debido a la gran influencia que tienen ...
Payri, Raul; Bracho Leon, Gabriela; Marti-Aldaravi, Pedro; Viera-Sotillo, Alberto Antonio(Begell House Inc., 2017)
[EN] Accurate experimental data are often needed to validate computational fluid dynamics models. These models regularly rely on experimental results from single-orifice axially drilled nozzles that do not fully represent ...
Payri, Raul; Bracho Leon, Gabriela; Soriano, J. A.; Fernández-Yáñez, P.; Armas, O.(Elsevier, 2020-11-01)
[EN] Due to environmental problems, research on fuel economy and pollutant emissions in internal combustion engines has drawn the attention of automobile manufacturers and researchers. The diesel engine is one of the most ...
Payri, Raul; Bracho Leon, Gabriela; Marti-Aldaravi, Pedro; Marco-Gimeno, Javier(American Chemical Society, 2021-10-06)
[EN] The selective catalytic reduction (SCR) is a technology employed for NOx reduction purposes which is based on the injection of an Urea Water Solution (UWS) into the exhaust line. Conversion of this injected urea into ...
Modern engine design has challenging requirements towards maximum power output, fuel consumption and emissions. For engine combustion development programs, the injection system has to be able to operate reliable under a ...
Bracho León, Gabriela Cristina; Martí-Aldaraví, Pedro; García Tíscar, Jorge; Gómez Soriano, Josep(Editorial Universitat Politècnica de València, 2022-01-19)
[EN] During the last year 2020, education in European universities has suffered a challenging transformation from an established pedagogical model to a digital one. The face-to-face formal lectures have been replaced to ...
Álvarez de Molina, Víctor(Universitat Politècnica de València, 2023-06-28)
[ES] El objetivo principal de este proyecto es el diseño completo de una instalación fotovoltaica industrial aislada de la red eléctrica en el polígono El Churro, en Requena (Valencia). El desarrollo de la instalación se ...
Payri, Raul; Bracho Leon, Gabriela; Gimeno, Jaime; Bautista-Rodríguez, Abián(Elsevier, 2018)
[EN] Awareness of climate change, fossil fuel availability, and pollutants has been growing which have pushed forward the effort in cleaner engines. In this aspect, the gasoline engines have more improving margin than ...
Gisbert Soria, Miguel Ángel(Universitat Politècnica de València, 2016-09-22)
[EN] In this project a CFD study was developed with the aim of analyzing the influence of diesel
injector hole geometry in the internal flow behavior with the assumption of quasi-steady
conditions (full needle lift). ...
Oliver Rodrigo, Ana(Universitat Politècnica de València, 2023-12-14)
[ES] La cátedra de accionamientos de Energía Eólica investiga el comportamiento de los trenes de accionamiento de las modernas multimegaváticas turbinas eólicas (WT, en inglés Wind Turbines). Los objetivos de la investigación ...
Biosca Mínguez, María(Universitat Politècnica de València, 2022-09-28)
[ES] El proyecto consiste en el estudio de la eficiencia de una instalación de colectores solares en un edificio situado en el campus de la universidad Politechnika de Krakowska (Polonia). A través de datos previamente ...
Payri, Raul; Gimeno, Jaime; Bracho Leon, Gabriela; Vaquerizo, Daniel(Elsevier, 2016-08-25)
A lot of effort has been put in the past years into the understanding of the delivery and development of diesel sprays in engine-like conditions as it has been proved to be a very important step for the design of better ...
Ivorra Peleguer, Belén(Universitat Politècnica de València, 2022-10-04)
[EN] The motivation of the study comes from the environmental needs.
We must be aware about the care of the planet, guaranteeing the use of renewable energies
to achieve an increase of clean energies and therefore, being ...
Bracho León, Gabriela Cristina(Universitat Politècnica de València, 2016-12-23)
[EN] The direct injection Diesel engine is one of the most used approaches for transport
applications or even in the domain of energy production, where the common-rail injection
technology has been a key in the evolution ...
In this paper the study of the behavior of the fuel flow through the injector nozzle using CFD tools is presented. Large Eddy Simulation will be used to model the internal flow turbulence in a Diesel fuel injector with ...