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Browsing by Author "García Martínez, Antonio"

Now showing items 1-20 of 159

A Combination of Swirl Ratio and Injection Strategy to Increase Engine Efficiency

Olmeda, P.; Martín, J.; García Martínez, Antonio; Villalta-Lara, David; Warey, Alok; Domenech Llopis, Vicente (SAE International, 2017)

[EN] Growing awareness about CO2 emissions and their environmental implications are leading to an increase in the importance of thermal efficiency as criteria to design internal combustion engines (ICE). Heat transfer to ...
A complete 0D thermodynamic predictive model for direct injection diesel engines

Payri González, Francisco; Olmeda, P.; Martín Díaz, Jaime; García Martínez, Antonio (Elsevier, 2011-06-01)

[EN] Ideal models provide the simplest way to reproduce internal combustion engine (ICE) cycles, but they usually do not represent with sufficient accuracy the actual behaviour of an ICE. A suitable alternative for research ...
A Comprehensive Study of Particle Size Distributions with the Use of PostInjection Strategies in DI Diesel Engines

Desantes, J.M.; Bermúdez, Vicente; García Martínez, Antonio; Linares Rodríguez, Waldemar Gregorio (Taylor & Francis, 2011)

[EN] Control strategies such as variations in injection pressure and timing have been used by researchers to reduce in-cylinder exhaust emissions and meet legislation standards. Postinjection has been studied for several ...
A New Methodology to Evaluate Engine Ignition Systems in High Density Conditions

Payri Marín, Raúl; Novella Rosa, Ricardo; García Martínez, Antonio; Domenech Llopis, Vicente (Society for Experimental Mechanics (SEM), 2014-06)

In this research, a new methodology to evaluate the operation of spark ignition systems in high density conditions is presented. New requirements in engines and new combustion modes demand more from these systems. One of ...
Achieving clean and efficient engine operation up to full load by combining optimized RCCI and dual-fuel diesel-gasoline combustion strategies

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Boronat-Colomer, Vicente (Elsevier, 2017-03-15)

[EN] This experimental work investigates the capabilities of the reactivity controlled compression ignition combustion concept to be operated in the whole engine map and discusses its benefits when compared to conventional ...
Ajuste y puesta en marcha de un modelo predictivo para el fenómeno de combustión Diesel basado en reactores estocásticos

Subies Martínez, Vicent (Universitat Politècnica de València, 2020-10-06)

[ES] Los fabricantes de motores, con la creciente demanda de ahorro de combustible y la reducción de las emisiones, todo esto conteniendo el precio final del producto, se han visto obligados a optimizar su método de ...
An experimental study of gasoline effects on injection rate, momentum flux and spray characteristics using a common rail diesel injection system

Payri, Raul; García Martínez, Antonio; Domenech Llopis, Vicente; Durrett, Russell; Plazas, Alejandro H. (Elsevier, 2012-07)

A comparative study using diesel fuel and gasoline has been conducted focusing on the injection process. In this paper an experimental study has been carried out comparing the effects of the different fuels on the mass ...
An Experimental Study on Diesel Spray Injection into a Non-Quiescent Chamber

Pastor, José V.; García-Oliver, José M; García Martínez, Antonio; Zhong, Wenjun; Micó Reche, Carlos; Xuan, Tiemin (SAE International, 2017)

[EN] Visualization of single-hole nozzles into quiescent ambient has been used extensively in the literature to characterize spray mixing and combustion. However in-cylinder flow may have some meaningful impact on the spray ...
An investigation of partially premixed compression ignition combustion using gasoline and spark assistance

Benajes Calvo, Jesus Vicente; García Martínez, Antonio; Domenech Llopis, Vicente; Durret, Russell (Elsevier, 2013-04-15)

Nowadays the automotive scientific community and companies are focusing part of their efforts on the investigation of new combustion modes in Compression Ignition (Cl) engines, mainly based on the use of locally lean air ...
An investigation on RCCI combustion in a heavy duty diesel engine using in-cylinder blending of diesel and gasoline fuels

Benajes Calvo, Jesus Vicente; Molina Alcaide, Santiago Alberto; García Martínez, Antonio; Belarte Mañes, Eduardo; Vanvolsem, Michel (Elsevier, 2014-02-05)

An experimental and numerical study has been carried out to understand mixing and auto-ignition processes in RCCI combustion conditions, using gasoline and diesel as low and high reactivity fuels, respectively. Three ...
An investigation on the particulate number and size distributions over the whole engine map from an optimized combustion strategy combining RCCI and dual-fuel diesel-gasoline

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Boronat-Colomer, Vicente (Elsevier, 2017-05-15)

[EN] Literature demonstrates that, for premixed low temperature combustion concepts, particulate matter cannot be directly extrapolated from soot emissions measurements, as typically done for conventional diesel combustion. ...
An optical investigation of Fischer-Tropsch diesel and Oxymethylene dimethyl ether impact on combustion process for CI engines

Pastor, José V.; García Martínez, Antonio; Mico Reche, Carlos; De Vargas Lewiski, Felipe (Elsevier, 2020-02-15)

[EN] Synthetic fuels (E-fuels) have shown to be an interesting alternative to replace the fossil diesel fuel due to its CO2 reduction potential as well as for their capability to diminish the soot production and therefore ...
An optical investigation of thermal runway phenomenon under thermal abuse conditions

García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael; Martínez-Boggio, Santiago Daniel (Elsevier, 2021-10-15)

[EN] This work aims at studying the thermal runaway process caused by thermal abuse using different optical techniques. A commercial Samsung ICR 18,650 - 26 J cylindrical battery cell is exposed to different heating ramps ...
Analysis of a series hybrid vehicle concept that combines low temperature combustion and biofuels as power source

García Martínez, Antonio; Monsalve-Serrano, Javier (Elsevier, 2019-03)

[EN] This work evaluates the potential of a series hybrid vehicle concept that combines low temperature combustion (LTC) and biofuels as power source. To do this, experimental data from a previous work obtained in a ...
Analysis of the combustion process and soot formation in a single cylinder optical engine fueled with e-fuels and using different piston geometries

Vargas Lewiski, Felipe de (Universitat Politècnica de València, 2022-01-10)

[ES] La reducción de emisiones en motores de combustión interna (MCI) es uno de los mayores desafíos técnicos de la sociedad. Aunque están surgiendo nuevas tecnologías para la movilidad, el ICE seguirá teniendo un papel ...
Analysis of the potential of a new automotive two-stroke gasoline engine able to operate in spark ignition and controlled autoignition combustion modes

López, J. Javier; Molina, Santiago; García Martínez, Antonio; Valero-Marco, Jorge; Justet, F. (Elsevier, 2017)

[EN] The need to reduce the emissions coming from automobiles encourages the attempts to study different engine configurations and new combustion strategies. In this case, a two stroke engine able to operate in Controlled ...
Análisis de los gases generados durante el proceso de fuga térmica en celdas de ion-litio en función del estado de carga

Esparza Herrero, Miguel (Universitat Politècnica de València, 2023-07-24)

[ES] Debido a la situación en la que se encuentra nuestra sociedad, se están impulsando alternativas para reducir la contaminación generada por los combustibles fósiles utilizados en los vehículos de combustión tradicionales. ...
Análisis de los principales parámetros de un vehículo híbrido enchufable en paralelo operando bajo el modo de combustión RCCI

López Asensio, Pedro (Universitat Politècnica de València, 2019-07-16)

[ES] El parque automovilístico es tan extenso que,inclusoteniendo unas emisiones muy bajas por vehículo, las normativas siguen reduciendo los valores permitidos de contaminantes. Estemotivo ha llevado ...
Análisis del comportamiento transitorio de un motor de camión de 8 litros y 260 kW operando en modo de combustión dual fuel

Tecles Cardona, Ricardo (Universitat Politècnica de València, 2021-09-22)

[ES] Estudios previos han demostrado el potencial de emplear la estrategia de combustión dual-mode dual-fuel juntamente con la hibridación, para la reducción de emisiones contaminantes, respecto de una combustión tradicional ...
Análisis del efecto de la ley de combustión en el rendimiento de un motor Diesel de Inyección Directa

Fernández Marco, Mar (Universitat Politècnica de València, 2015-09-21)

[ES] El objetivo general de este trabajo es el de evaluar de forma cualitativa y cuantitativa el efecto de la ley de combustión en el rendimiento del motor. Con el propósito de clarificar y ordenar el proceso se pueden ...