Gómez Soriano, Josep(Universitat Politècnica de València, 2015-07-08)
En un marco global de creciente preocupación por la salud y el medio ambiente, el sector de la automoción se ha visto afectado por el endurecimiento de las normativas anticontaminación. Este hecho ha llevado a la comunidad ...
Domizi, Mirco(Universitat Politècnica de València, 2021-02-04)
[ES] El presente estudio se desarrolla en la marco de la combustión en motores de gasolina y se centra en el análisis del concepto de encendido por precámara. El proyecto trata del estudio numérico del proceso combustión ...
In the last decade, different advanced combustion concepts based on generating totally or partially
premixed conditions have been investigated in CI (compression ignition) engines with the aim of
achieving lower NOx ...
Gómez Soriano, Josep(Editorial Universitat Politècnica de València, 2018-11-16)
Las crecientes exigencias de la industria están cambiando la forma en que entendemos la sociedad y el entorno en el que vivimos. Frente a la necesidad de un comercio rápido y globalizado, están emergiendo varios problemas ...
[EN] In the present work, a numerical methodology based on three-dimensional (3D) computational fluid dynamics (CFD) was developed to predict knock in a 2-Stroke engine operating with gasoline Partially Premixed Combustion ...
Fortea Marzo, Rosa Marina(Universitat Politècnica de València, 2020-12-17)
[ES] Hoy en día, los efectos negativos del calentamiento global generan una gran preocupación sobre las emisiones de los gases de efecto invernadero y sus consecuencias. Debido al consumo de combustibles fósiles en el ...
[EN] Knock is a major bottleneck to achieving higher thermal efficiency in spark-ignited (SI) engines. The overall tendency to knock is highly dependent on fuel anti-knock quality as well as engine operating conditions. ...
[EN] The pre-chamber ignition concept is an attractive strategy to enable the operation of spark-ignition engines in lean or diluted conditions keeping a suitable combustion process. According to the results the benefits ...
[EN] As noise pollution remains one of the biggest hurdles posed by thermal engines, increasing efforts are made to alleviate the generation of combustion noise from the early design stage of the chamber. Since the complexity ...
[EN] Research efforts in the automotive sector focus on developing new combustion concepts for mitigating the emissions of nitrous oxides and soot of conventional Diesel combustion. One of the most promising concept is the ...
[EN] In this paper, a numerical Computational Fluid Dynamics (CFD) study is carried out with the purpose of understanding how the injector design may impact on the in-cylinder processes, which cause noise emission. This ...
[EN] This paper proposes an educational methodology for the development of the specific instrumental soft skill in Aerospace Engineering degree students. This methodology uses an autonomous and active learning approach to ...
[EN] In this paper, the unsteady behaviour of a compression-ignited (CI) engine combustion chamber is studied by analysing the results of a Computational Fluid Dynamics (CFD) model through the application of different flow ...
Torregrosa, A. J.; Broatch, A.; Gil, A.; Gómez-Soriano, Josep(Elsevier, 2018-06)
[EN] Diesel combustion noise has become a crucial aspect for the engine manufacturers due to its impact on human health and influence on the customer purchasing decision. The interaction of the pressure waves after mixture ...
[EN] It is challenging to develop highly efficient and clean engines while meeting user expectations in terms of performance, comfort and drivability. One of the critical aspects in this regard is combustion noise control. ...
[EN] This paper presents a numerical methodology based on Computational Fluid Dynamics (CFD) simulations to understand the physics of heat losses through the cylinder walls coated with different materials, taking into ...
[EN] As the focus of research and development is put into innovative combustion concepts with the goal of reducing harmful chemical pollutants while keeping or even improving the efficiency of conventional Diesel combustion, ...
[EN] This paper evaluates the potential advantages of introducing a new injector concept with a dual set of orifices in a 2-stroke engine operating with gasoline partially premixed combustion (PPC gasoline), specially in ...
[EN] The engine oil contamination by both particulate matter (PM) and fuel is becoming an important problem since strategies to control pollutant emissions in internal combustion engines (ICE) significantly increase their ...
[EN] In this article, a numerical methodology for assessing combustion noise in compression ignition engines is described with the specific purpose of analysing the unsteady pressure field inside the combustion chamber. ...