Vera-Tudela Fajardo, Walter Martin(Universitat Politècnica de València, 2015-12-16)
[EN] This last few years, the trend in diesel engines has been to use different kinds of fuels to identify their influence and behaviour on the emissions and performance. Among the wide variety of fuels employed are the ...
Pastor Soriano, José Vicente; Payri Marín, Raúl; García Oliver, José María; Briceño Sánchez, Francisco Javier(Begell House, 2011)
The objective of this study is to investigate liquid length and vapor penetration for diesel sprays under highly transient
injection conditions. High-speed Mie-scattering and shadowgraphy imaging of the spray evolution ...
Vera Tudela Fajardo, Walter Martín(Universitat Politècnica de València, 2013-02-06)
[ES] El presente trabajo determina las diferencias que existen en un chorro de combustible en condiciones de evaporación en ausencia de oxígeno al modificar el inyector, presión de inyección, presión de cámara de combustión, ...
[EN] One of the test boundary conditions whose control is necessary for both experimental and numerical studies about the automotive engines research field is the temperature of the fuel inside the injector body during the ...
Development and mixing of Diesel sprays are long known to be key factors for combustion and pollutant
emissions but the related measurements in a real engine is not an easy task. This fact led researchers
to simulate ...
Payri, Raul; García-Oliver, José M; Bracho Leon, Gabriela; Cao, Jiawei(Elsevier, 2024-04-15)
[EN] Ammonia is seen as a promising fuel to replace fossil fuels internal combustion engines, given the advantages of zero carbon emission and extensive experience in its synthesis at large scale. The ignition of ammonia ...
Pastor, José V.; García-Oliver, José M; Mico Reche, Carlos; Garcia-Carrero, Alba Andreina; Gómez, Arantzazu(MDPI AG, 2020-08)
[EN] Featured Application This work contributes to the understanding of the macroscopic characteristics of the spray as well as to the evolution of the combustion process for alternative fuels. All these fuels have been ...
In this research, two Engine Combustion Network (ECN) mono-orifice nozzles, referred to as Spray C and Spray D. respectively, were analyzed by performing visualization tests through Schlieren and Diffused Backlight ...
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 ...
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 ...
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 ...
Pastor Soriano, José Vicente; García Oliver, José María; Pastor Enguídanos, José Manuel; Vera-Tudela Fajardo, Walter Martin(Begell House: Engineering Titles, 2015)
[EN] The present work reports a one-dimensional model to predict the liquid length and spray penetration
of diesel sprays when using blends of single-component fuels. A high-pressure liquid-vapour equilibrium
has been ...
A state of the art prototype common rail injector featuring direct control of the needle by means of a piezo stack
(direct acting) has been tested. Liquid phase penetration of the sprays in diesel engine-like conditions ...
[EN] The influence of internal nozzle flow characteristics over the evaporative spray development is studied experimentally for two different nozzle geome-tries and three different fuels. This is a continuation of previous ...