Herraiz Alonso, María(Universitat Politècnica de València, 2020-10-06)
[EN] The applications of a turbulent flow with suspended particles appears both in industrial and natural processes. According to its importance, the objective of this study is to analyse the influence of velocity and ...
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 ...
[EN] Emissions control is a key topic for internal combustion engine development. One of the most widespread technologies to reduce the formation of nitrogen oxides is the recirculation of exhaust gas to the engine intake. ...
[EN] This paper examines a common hypothesis in the design of internal combustion engine exhaust lines, namely that the ratio of the total pressure drop across the line to the inlet dynamic head should be a function only ...
Leon Dasi, Mireia(Universitat Politècnica de València, 2019-07-18)
[CA] El projecte recull la contribució com investigadora individual a l'Experiment de Des-òrbita Aerodinàmica (ADE en endavant) desenvolupat per Purdue University, California Polytechnic State University i Georgia Institute ...
Torregrosa, A. J.; Broatch, A.; Olmeda, P.; Cornejo, O.(Elsevier, 2014-01)
[EN] Subcooled boiling flow is specially attractive for engine cooling system design, as no essential changes in its architecture are required while it is still possible to take advantage of the highest rates of heat ...
Desantes, J.M.; Torregrosa, A. J.; Broatch, A.; Olmeda González, Pablo Cesar(Elsevier, 2011-01)
[EN] The present study tries to be a contribution for the development of more precise theoretical models for predicting the dissipation of heat through the combustion chamber walls of reciprocating (internal combustion) ...
Cremades Botella, Andrés(Universitat Politècnica de València, 2023-11-06)
[ES] El interés en reducir el peso y resistencia aerodinámica de vehículos y en desarrollar fuentes de energía renovables se ha incrementado debido a la compleja situación ambiental y los requerimientos legales para reducir ...
[EN] Over recent decades, direct injection diesel engines have become the propulsion systems most commonly used in automotive vehicles in Europe. Their leading position in the European market is due to improvements in ...
[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 ...
García Tobar, Milton Oswaldo(Universitat Politècnica de València, 2016-06-07)
El proyecto presentado está orientado a realizar un Acondicionamiento Acústico de una Sala de Pruebas para el Diagnóstico de Motores de Combustión Interna Alternativos Diésel por Análisis de Ruido, la misma que formará ...
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 ...
[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 ...
[ES] La finalidad del presente trabajo engloba un amplio espectro de objetivos tanto a
nivel individual como en el ámbito académico.
En el plano personal del que suscribe, este documento constituye la finalización de
los ...
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] In modeling an Internal Combustion Engine, the combustion sub-model plays a critical role in the overall simulation of the engine as it provides the Mass Fraction Burned (MFB). Analytically, the Heat Release Rate (HRR) ...
[EN] The experimental characterization of the acoustic characteristics of engine exhaust devices is usually carried out through measurements in cold conditions, due to the intrinsic difficulties associated with proper ...
Torregrosa, A. J.; García-Cuevas González, Luis Miguel; Quintero-Igeño, Pedro-Manuel; Cremades-Botella, Andrés(Elsevier, 2021-08)
[EN] Aeroelastic Computational Fluid Dynamics simulations have traditionally been associated to a high computational cost, making them prohibitive in a initial phase of the design. Analytic models, which may not be accurate ...
Torregrosa, A. J.; Broatch, A.; Arnau Martínez, Francisco José; Hernández-Marco, Manuel(Elsevier, 2017-11)
[EN] A suitable tool for the design of intake and exhaust systems of internal combustion engines is provided by time domain non-linear finite volume models. These models, however, are affected by overshoots at discontinuities ...