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Listar por palabra clave "Internal combustion engine"

Mostrando ítems 1-20 de 54

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1D modelling of an ammonia inyector for compression ignition engines

Plazas García, Laura (Universitat Politècnica de València, 2024-11-05)

[ES] La creciente necesidad de soluciones energéticas sostenibles ha motivado la investigación de combustibles alternativos con menor impacto ambiental. Este Trabajo Final de Grado (TFG) se centra en la modelización 1D de ...
A contribution to the global modeling of heat transfer processes in Diesel engines

Salvador Iborra, Josep (Universitat Politècnica de València, 2020-09-02)

[EN] Current challenges in research and development of powertrains demand new computational tools capable of simulating vehicle operation under very diverse conditions. This is due, among other reasons, to new homologation ...
A correlation for turbulent combustion speed accounting for instabilities and expansion speed in a hydrogen-natural gas spark ignition engine

Gimenez, Blanca; Melgar, Andrés; Horrillo, Alfonso; Tinaut-Fluixá, Francisco Vicente (Elsevier, 2021-01)

[EN] An analysis of the turbulent premixed combustion speed in an internal combustion engine using natural gas, hydrogen and intermediate mixtures as fuels is carried out, with different air-fuel ratios and engine speeds. ...
A fluid dynamic model for unsteady compressible flow in wall-flow diesel particulate filters

Torregrosa Huguet, Antonio José; Serrano Cruz, José Ramón; Arnau Martínez, Francisco José; Piqueras Cabrera, Pedro (Elsevier, 2011-01)

The use of particulate filters (DPF) in Diesel engines has become in recent years the standard technology for the control of soot aerosol emissions. Once emissions reduction through the management of filtration and ...
A modelling tool for engine and exhaust aftertreatment performance analysis in altitude operation

Serrano, J.R.; Piqueras, P.; Sanchis-Pacheco, Enrique José; Diesel Costa, Bárbara (Elsevier, 2019-12)

[EN] New regulation standards on engine pollutant emissions are widening the engine operating conditions subjected to type approval tests as a way to prevent from the gap between regulated and real-driving emissions. In ...
A strategy to extend load operation map range in oxy-fuel compression ignition engines with oxygen separation membranes

Arnau Martínez, Francisco José; Bracho Leon, Gabriela; García-Cuevas González, Luis Miguel; Farias, V. H. (Elsevier, 2023-05-25)

[EN] The possibility of applying oxy-fuel combustion to a compression ignition engine (CIE) at different operating points regarding engine speed and load is studied in this work. To do so, a strategy is proposed to extend ...
Adaptation of a compression ignition engine for operating under oxy-fuel combustion conditions using oxygen separation membranes

Farias Da Silva, Vitor Hugo (Universitat Politècnica de València, 2021-11-18)

[ES] Se estudia el concepto de oxicombustión en un motor de encendido por compresión (CIE) que utiliza membranas conductoras iónico-electrónicas mixtas (MIEC) para separar el oxígeno (O2) del aire para lograr una combustión ...
An integrated method to calculate an automobile's emissions throughout its life cycle

Viñoles Cebolla, Rosario; Bastante-Ceca, Maria José; Capuz-Rizo, Salvador F. (Elsevier, 2015-04-01)

[EN] Although studies can be found in the literature that present emissions inventories associated with different types of automobiles, distinct technologies or various stages of their life cycles, they do not enable us ...
Analysis of the Driving Altitude and Ambient Temperature Impact on the Conversion Efficiency of Oxidation Catalysts

Serrano, J.R.; Piqueras, P.; Sanchis-Pacheco, Enrique José; Diesel Costa, Bárbara (MDPI AG, 2021-02)

[EN] Worldwide emission standards are extending their requirements to cover engine operation under extreme ambient conditions and fill the gap between the type-approval and real driving conditions. The new ambient boundaries ...
Analysis of the role of altitude on diesel engine performance and emissions using an atmosphere simulator

Bermúdez, Vicente; Serrano, J.R.; Piqueras, P.; Gómez-Gil, Javier; Bender, Stefan (SAGE Publications, 2017)

[EN] Forthcoming directives from European Commission will force homologation in altitude to approach standards to actual driving conditions in order to reduce the gap between regulated and real-life emissions. This work ...
Análisis de la eficiencia de un motor operando en modo oxicombustión para posibilitar la captura del CO2 emitido

Desco Sánchez, María (Universitat Politècnica de València, 2023-09-29)

[ES] Se estudia como adaptar un motor para operar con oxicombustión. El objetivo es la generación in-situ del oxígeno usando membranas cerámicas de transporte de iones para separar el oxígeno del aire. Para la operación ...
Application of a zero-dimensional model to assess the effect of swirl on indicated efficiency

Broatch, A.; Martín, Jaime; García Martínez, Antonio; Blanco-Cavero, Diego; Warey, Alok; Domenech, Vicent (SAGE Publications, 2019-10)

[EN] Increasing internal combustion engine efficiency continues being one of the main goals of engine research. To achieve this objective, different engine strategies are being developed continuously. However, the assessment ...
Assessment of acoustic reciprocity and conservativeness in exhaust aftertreatment systems

Torregrosa, A. J.; Piqueras, P.; Sanchis-Pacheco, Enrique José; Guilain, S.; Dubarry, M. (Elsevier, 2018-12-08)

[EN] Tightening emission standards limiting gas and aerosol emissions from internal combustion engines have led to the extensive use of exhaust aftertreatment systems (EATS) with different chemical functions as a solution ...
Brayton cycle for internal combustion engine exhaust gas waste heat recovery

Galindo, José; Serrano Cruz, José Ramón; Dolz Ruiz, Vicente; Kleut, Petar (Hindawi Publishing Corporation, 2015-06)

An average passenger car engine effectively uses about one-third of the fuel combustion energy, while the two-thirds are wasted through exhaust gases and engine cooling. It is of great interest to automotive industry to ...
Combined Experimental and Modeling Methodology for Intake Line Evaluation in Turbocharged Diesel Engines

Torregrosa, A. J.; Galindo, José; Guardiola, Carlos; Varnier ., Olivier Nicolás (The Korean Society of Automotive Engineers, 2011-06)

This paper presents a methodology for diesel engine intake line analysis that combines specific element tests and modeling. The purpose of this methodology is to determine the impact of intake lines, or newly designed ...
Decarbonisation Potential Evaluation of Different Powertrain Technologies for Buses and Passenger Cars Using Real Drive Cycles

Tripathi, Shashwat (Universitat Politècnica de València, 2021-12-23)

[ES] La industria del automóvil está regulada por diferentes normativas en todo el mundo por sus emisiones de GEI que salen de los tubos de escape de los vehículos. Recientemente, teniendo en cuenta el objetivo a largo ...
Desarrollo de Técnicas de diagnóstico a bordo para catalizadores de oxidación diesel

Mora Pérez, Javier (Universitat Politècnica de València, 2016-07-22)

[EN] Present work develops on-board diagnostics (OBD) techniques for diesel oxidation catalysts (DOC). As computational resources in modern electronic control units (ECU) are scarce, algorithms must consider the time ...
Desarrollo de un prototipo virtual de un motor plano tipo bóxer de cuatro cilindros

Castro Flos, Carlos de (Universitat Politècnica de València, 2022-09-09)

[ES] En el presente trabajo, se desarrollará el prototipo virtual de un motor de combustión interna alternativo de cuatro tiempos, tipo plano, más concretamente bóxer. Considerando motores reales utilizados en la industria ...
Desarrollo de una metodología de diseño del sistema de encendido por pre-cámara en motores de encendido provocado para automoción

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 ...
Design of a carbon capture system for oxy-fuel combustion in compression ignition engines with exhaust water recirculation

Luján, José M.; Arnau Martínez, Francisco José; Piqueras, P.; Farias-Da Silva, Vitor Hugo (Elsevier, 2023-05-15)

[EN] The oxy-fuel combustion engine concept with onboard oxygen generation and carbon capture (CC) is studied using as a starting point a baseline oxy-fuel combustion layout coupled to a mixed ionic-electronic conducting ...