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Listar por autor "Broatch Jacobi, Jaime Alberto"

Mostrando ítems 1-20 de 109

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A direct transform for determining the trapped mass on an internal combustion engine based on the in-cylinder pressure resonance phenomenon

Broatch Jacobi, Jaime Alberto; Guardiola García, Carlos; Plá Moreno, Benjamín; Bares Moreno, Pau (Elsevier, 2015-10)

It has lately been demonstrated that the resonance of the in-cylinder pressure may be used for inferring the trapped mass in an internal combustion engine. The resonance frequency changes over time as the expansion stroke ...
A generalized equivalent circuit model for lithium-iron phosphate batteries

Torregrosa, A. J.; Broatch, A.; Olmeda, P.; Agizza, Luca (Elsevier, 2023-12-01)

[EN] Most of the equivalent circuit battery models available in the literature have been developed specifically for one cell and require extensive measurements to calibrate cell electrical parameters in different operating ...
A generalized methodology for lithium-ion cells characterization and lumped electro-thermal modelling

Broatch, A.; Olmeda, P.; Margot , Xandra; Agizza, Luca (Elsevier, 2022-11-25)

[EN] This paper deals with the experimental characterization and electro-thermal modeling of lithium-ion batteries. This aspect is of considerable importance to be able to have an understanding of the phenomena of heat ...
A non-linear quasi-3D model with Flux-Corrected-Transport for engine gas-exchange modelling

Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Arnau Martínez, Francisco José; Hernández-Marco, Manuel (Elsevier, 2016-01-01)

Modelling has proven to be an important tool in the design of manifolds and silencers for internal combustion engines. Although simple 1D models are generally sufficiently precise in the case of manifold models, they would ...
A Note on Bubble Sizes in Subcooled Flow Boiling at Low Velocities in Internal Combustion Engine-Like Conditions

Torregrosa, A. J.; Broatch, A.; Olmeda, P.; Cornejo-Luna, Omar (Isfahan University of Technology, 2016-09)

[EN] Current trends in engine design indicate the necessity to take advantage of the highest rates of heat transfer associated with nucleate boiling, mostly at high engine loads. When used in conjunction with advanced ...
A one-dimensional modeling study on the effect of advanced insulation coatings on internal combustión engine efficiency

Broatch, A.; Olmeda, P.; Margot, Xandra Marcelle; Gómez-Soriano, Josep (SAGE Publications, 2021-07-01)

[EN] This article presents a study of the impact on engine efficiency of the heat loss reduction due to in-cylinder coating insulation. A numerical methodology based on one-dimensional heat transfer model is developed. ...
A semi-empirical model of the calendar ageing of lithium-ion batteries aimed at automotive and deep-space applications

Torregrosa, A. J.; Broatch, A.; Olmeda, P.; Agizza, Luca (Elsevier, 2024-03-01)

[EN] Lithium-ion batteries are highly affected by calendar ageing effects, which can lead to capacity loss even when the battery is not used at all. The current literature proposes plenty of semi-empirical models to predict ...
A Study of the Transient Response of Duct Junctions: Measurements and Gas-Dynamic Modeling with a Staggered Mesh Finite Volume Approach

Torregrosa, A. J.; Broatch, A.; García-Cuevas González, Luis Miguel; Hernández-Marco, Manuel (MDPI AG, 2017-05-08)

[EN] Duct junctions play a major role in the operation and design of most piping systems. The objective of this paper is to establish the potential of a staggered mesh finite volume model as a way to improve the description ...
A view on the internal consistency of linear source identification for I.C. engine exhaust noise prediction

Macian Martinez, Vicente; Torregrosa, A. J.; Broatch, A.; Niven, P.C.; Amphlett, S.A. (Elsevier, 2013-04)

[EN] Considerable efforts have been devoted to the development of predictive models that, from a certain set of data related to an engine, and making use of an adequate representation of the effect of the silencing elements, ...
Acoustic and pressure characteristics of a ported shroud turbocompressor operating at near surge conditions

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Nickson, Ambrose K.; Allport, John M. (Elsevier, 2019-05)

[EN] The operation of compressor at lower mass flow rates is limited by surge which is marked by large fluctuations in operational variables and accompanied by significant increase in noise. Ported shroud casing treatment ...
Acoustic characterisation of a small high-speed centrifugal compressor with casing treatment: an experimental study

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K. (Elsevier, 2019-12)

[EN] With the advancements in manufacturing, materials and computational methods, turbomachinery designs have become more efficient providing higher specific power and reliability with lower weight and cost. The rotational ...
Acoustic characteristics of a ported shroud turbocompressor operating at design conditions

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K. (SAGE Publications, 2020-10)

[EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic ...
Acoustic characterization of automotive turbocompressors

Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Navarro García, Roberto; García Tíscar, Jorge (SAGE Publications (UK and US), 2015-01)

The performance of different experimental techniques proposed in the literature for acoustic characterization was assessed through the study of the noise generated by the compressor of an automotive turbocharger under ...
An automatized methodology to generate velocity distortion panels for wind tunnel testing

Broatch, A.; Margot, Xandra; GARCIA TISCAR, JORGE; Felgueroso-Rodríguez, Andrés (Elsevier, 2022-08)

[EN] Replicating the actual velocity distribution that a target will experience in real life is sometimes necessary to perform realistic aerodynamic characterizations in wind tunnels. In industrial aerodynamics, this is ...
Analysing the potential of a simulation-based method for the assessment of CO2 savings from eco-innovative technologies in light-duty vehicles

Gil-Sayas, Susana; Komnos, Dimitrios; Lodi, Chiara; Currò, Davide; Serra, Simone; Broatch, A.; Fontaras, Georgios (Elsevier, 2022-04-15)

[EN] Mandatory targets are set in Europe for Carbon Dioxide (CO2) emissions of light-duty vehicles. EU law recognises the potential of certain innovative technologies to contribute to reducing CO2 emissions. Vehicle systems ...
Analysis of acoustic networks including cavities by means of a linear finite volume method

Torregrosa, A. J.; Broatch, A.; Gil, A.; Moreno Martínez, David (Elsevier, 2012-09-24)

[EN] A procedure allowing for the analysis of complex acoustic networks, including three-dimensional cavities described in terms of zero-dimensional equivalent elements, is presented and validated. The procedure is based ...
Analysis of combustion acoustic phenomena in compression-ignition engines using large eddy simulation

Broatch, A.; Novella Rosa, Ricardo; GARCIA TISCAR, JORGE; Gómez-Soriano, Josep; Pal, P. (American Institute of Physics, 2020-08-01)

[EN] As computational capabilities continue to grow, exploring the limits of computational fluid dynamics to capture complex and elusive phenomena, which are otherwise difficult to study by experimental techniques, is one ...
Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used

Broatch, A.; Bermúdez, Vicente; Serrano, J.R.; Tabet, Roberto; Gómez, Javier; Bender, Stefan (ASME International, 2019-08)

[EN] According to current worldwide trends for homologation vehicles in real driving conditions is forced to test the engines in altitude and in highly dynamic driving cycles in order to approach nowadays and next future ...
Analysis of the improvement of a lithium-ion battery module cooling system employing nanofluid and nano encapsulated phase change materials by means of a lumped electro-thermal model

Torregrosa, A. J.; Broatch, A.; Olmeda, P.; Agizza, Luca (Elsevier, 2023-10-15)

[EN] In this study an analysis of the employment of nanoparticles and nano encapsulated phase change materials for battery cooling is provided. By using a previously validated electro-thermal model of a lithium-ion battery ...
Análisis del estado del arte y campos de aplicación de sistemas disruptivos de gestión térmica de baterías de vehículos electrificados

Garrido Puertas, Francisco Javier (Universitat Politècnica de València, 2022-10-14)

[ES] El crecimiento emergente de la tecnología eléctrica en la automoción induce a este sector a la búsqueda de mejoras de la capacidad energética en las químicas disponibles. Estas mejoras se obtienen fundamentalmente ...