[EN] The current paper presents the validation of some hypotheses used for developing a one-dimensional twin-entry turbine model with experimental measurements. A Laser Doppler Anemometry (LDA) technique has been used for ...
Samala, Vishnu(Universitat Politècnica de València, 2020-10-29)
[ES] A pesar de la importancia de las turbinas radiales de doble entrada y doble voluta en el flujo para motores turboalimentados, sus mapas característicos y su modelado totalmente predictivo utilizando códigos dinámicos ...
Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Margot , Xandra; García Tíscar, Jorge(Elsevier, 2016-08-18)
An experimental methodology is proposed to assess the noise emission of centrifugal turbocompressors like those of automotive turbochargers. A step-by-step procedure is detailed, starting from the theoretical considerations ...
Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo; Cheung, Raymond(SAGE Publications, 2021-02)
[EN] This article presents the experimental validation of a complete integrated one-dimensional twin-scroll turbine model able to be used in reciprocating internal combustion engine unsteady simulations. A passenger car ...
Galindo, José; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo(SAGE Publications, 2018-07-20)
[EN] This article presents the experimental validation of a quasi-two-dimensional radial turbine model able to be used in turbocharged reciprocating internal combustion engine simulations. A passenger car variable-geometry ...
[EN] The behavior of small turbochargers is deeply affected by heat transfer phenomena. The external heat losses of these machines are studied and a simplified model that takes into account both radiation and convective ...
[EN] Each of the elements that make up the turbocharger has been gradually improved. In order to
ensure that the system does not experience any mechanical failures or loss of efficiency, it is
important to study which ...
CFD has become an essential tool for researchers to analyze centrifugal compressors. Tip leakage flow is
usually considered one of the main mechanisms that dictate compressor flow field and stability. However,
it is a ...
Serrano, J.R.; Piqueras, P.; De La Morena, Joaquín; Gómez-Vilanova, Alejandro; Guilain, Stephane(Elsevier, 2021-01-15)
[EN] New generation of spark ignition (SI) engines are expected to represent most of the future market share in a context of powertrain hybridization. Nevertheless, the current technology has still critical challenges in ...
[EN] The widespread trend of pursuing higher efficiencies in radial turbochargers led to the prompting of this work. A 3D-printed model of the static parts of a radial variable geometry turbine, the vaned nozzle, and the ...
Galindo Lucas, José; Dolz Ruiz, Vicente; Tiseira Izaguirre, Andrés Omar; Gozalbo Belles, Ricardo(American Society of Mechanical Engineers (ASME), 2013-05)
Active control turbocharger (ACT) has been proposed as a way to improve turbocharger
performance under highly pulsating exhaust flows. This technique implies that the variable
geometry mechanism in the turbine is used ...
[EN] During automotive urban driving conditions and future homologation cycles, automotive radial turbines experience transient conditions, whereby the same operate at very high blade speed ratios and, thus, at very low ...
Torregrosa, A. J.; García-Cuevas González, Luis Miguel; Inhestern, Lukas Benjamin; Soler-Blanco, Pablo(SAGE Publications, 2021-04-01)
[EN] Estimating correctly the turbine acoustics can be valuable during the engine design stage; in fact, it can lead to a more optimised design of the silencer and aftertreatment, as well as to better prediction of the ...
Soler Blanco, Pablo(Universitat Politècnica de València, 2020-04-27)
[ES] Está fuera de toda duda que la industria del automóvil está viviendo una profunda transformación que, durante los últimos años, ha progresado a un ritmo acelerado. Debido a la crecientemente estricta regulación sobre ...
This work describes a technique for measuring the precession movement of the shaft of
small automotive turbochargers. The main novelty is that the technique is based on
infrared light diode sensors. With presented technique ...
[EN] This paper presents a novel non-invasive technique to estimate the turbocharger shaft whirl motion. The aim of this article is to present a system for monitoring the shaft motion of a turbocharger, which will be used ...
Dombrovsky, Artem(Universitat Politècnica de València, 2017-06-05)
Low fuel consumption is one of the main requirement for current
internal combustion engines for passenger car applications. One of the
most used strategies to achieve this goal is to use downsized engines
(smaller engines ...
López Carrillo, Juan Antonio(Universitat Politècnica de València, 2022-10-27)
[ES] Se desarrollan en este trabajo el proceso de testeo y modelado de un turbogrupo de automoción para su uso en un ciclo Brayton inverso de refrigeración, su implementación en el ciclo junto a una campaña experimental ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Tiseira Izaguirre, Andrés Omar; García-Cuevas González, Luis Miguel; Lefebvre, Alain(Elsevier, 2013-06-15)
The aim of the present work is to show an approximation, through an experimental an theoretical study, to quantify
the mechanical losses in a turbocharging system. These are linked to the dynamics in the turbo shaft ...
This paper presents a new representation of the turbine performance maps oriented for turbocharger characterization. The aim of this plot is to provide a more compact and suited form to implement in engine simulation models ...