[EN] One of the key strategies to reduce CO2 emissions is to improve the efficiency of engines in order to diminish fuel consumption. A way to increase engine efficiency is to reduce the heat losses. Internal heat transfer ...
[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 ...
Roig Villanueva, Ferran(Universitat Politècnica de València, 2018-10-17)
Estudio experimental para la caracterización del campo fluido de entrada al turbocompresor con distintas geometrías simples de entrada y su correlación con el impacto sobre el ruido, márgen de bombeo y rendimiento. Se ...
Sanmartín Marcos, Francisco Javier(Universitat Politècnica de València, 2020-10-13)
[ES] El presente trabajo tiene por finalidad el desarrollo de una novedosa herramienta
informática para el modelado acústico de silenciadores para APUs basada en un
método de modelado multidimensional lineal que tiene ...
[EN] Several investigations related to increasing engine thermal efficiency focusing on the engine hydraulic circuits (oil and coolant) were performed over the last years. According to literature, more than 20% of the fuel ...
[EN] The potential of e-bus transportation to improve air quality and reduce noise pollution in cities is significant. In order to improve efficiency and extend the useful life of these vehicles, there is a growing need ...
Giménez Bolinches, Albert(Universitat Politècnica de València, 2017-05-03)
El IU CMT-Motores Térmicos oferta un TFM consistente en el desarrollo de una interfaz gráfica en MatLab y optimización de un sistema para el procesamiento de las señales adquiridas en un banco de impulsos, referente a la ...
[EN] Adverse effects of global warming due to the greenhouse gas emissions is changing the actual paradigm for the use energy resources. In the absence of a mid-term solution for reducing these emissions in transportation, ...
[EN] The efficiency and range of electric vehicles (EVs) is an actual object of concern among manufacturers. The fast market share growth together with issues such as range anxiety demand evermore robust battery thermal ...
Torregrosa, A. J.; Broatch, A.; Margot, Xandra Marcelle; García Tíscar, Jorge; Narvekar, Y.; Cheung, R.(Elsevier, 2017)
[EN] This paper describes an experimental study carried out with the objective of characterizing flow instabilities in turbocharger compressors, specially the distribution of the high-temperature compressed back flow that ...
Torregrosa, A. J.; Broatch, A.; Pastor, José V.; GARCIA TISCAR, JORGE; Sharma, Raj K.; Cheung, R.(Elsevier, 2018-12)
[EN] An experimental measurement campaign is presented where particle image velocimetry (PIV) was used in an effort to characterize the velocity field in a turbocharger compressor when unstable operating conditions lead ...
Centrifugal compressors working in the surge side of the map generate a broadband noise in the range of 1-3 kHz, named as whoosh noise. This noise is perceived at strongly downsized engines operating at particular conditions ...
[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 ...
Garrido Guijarro, Antonio(Universitat Politècnica de València, 2015-06-01)
El ruido en los MEC está provocado fundamentalmente por su particular proceso de combustión, en el que se produce el autoencendido de la mezcla de aire y combustible dentro de la cámara de combustión debido a la compresión ...
Broatch, A.; Olmeda, P.; Margot, Xandra; Escalona-Cornejo, Johan Enrique(Elsevier, 2019)
[EN] The stringent environmental constraints have led the industry to look for new technologies that improve the design of internal combustion engines (ICE), mainly focused on achieving higher thermal efficiency and reducing ...
[EN] Energy management in electrified vehicles is critical and directly impacts the global operating efficiency, durability, driveability, and safety of the vehicle powertrain. Given the multitude of components of these ...
[EN] Combustion noise in gas turbine engines has recently become a relevant source of noise in the aircraft due to the appearance of new burner architectures that are intrinsically more unstable, and the optimization of ...
Chávez-Modena, Miguel; Valero, Eusebio; Miguel González,Leo; Broatch, A.; GARCIA TISCAR, JORGE; Felgueroso-Rodríguez, Andrés(Institute of Aeronautics and Astronautics, Inc., 2021-08-06)
[EN] A surface air-cooled oil cooler (SACOC) is a passive heat exchanger used to evacuate a large quantity of heat from the oil circuit of a turbofan engine to its secondary flow with minimal perturbation. Using the secondary ...