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Listar por autor "López Pintor, Darío"

Mostrando ítems 1-20 de 20

A new method to predict high and low-temperature ignition delays under transient thermodynamic conditions and its experimental validation using a Rapid Compression-Expansion Machine

Desantes Fernández, José Mª; Bermúdez, Vicente; López, J. Javier; López Pintor, Darío (Elsevier, 2016-09-01)

A new procedure to predict both high-temperature stage and cool flames ignition delays under transient thermodynamic conditions has been developed in this paper. The results obtained have been compared with those obtained ...
A phenomenological explanation of the autoignition propagation under HCCI conditions

Desantes, J.M.; López, J. Javier; García-Oliver, José M; López-Pintor, Darío (Elsevier, 2017)

[EN] A phenomenological explanation about the autoignition propagation under HCCI conditions is developed in this paper. To do so, diffusive effects from the burned zones to the fresh mixture, pressure waves based effects ...
Análisis y validación de varios mecanismos de cinética química por comparación con datos experimentales de un motor 2T de automoción y propuesta de un nuevo combustible de sustitución para la gasolina de 98 octanos

Llamazares López, Marcos (Universitat Politècnica de València, 2016-09-05)

[ES] Debido a la nueva legislación que regula las emisiones de óxidos de nitrógeno (NOx), el estudio de nuevas formas de controlar y reducir dichas emisiones ha adquirido una mayor importancia. El control de emisiones ...
Characterization and prediction of the discharge coefficient of non-cavitating diesel injection nozzles

Desantes Fernández, José Mª; López, J. Javier; Carreres Talens, Marcos; López-Pintor, Darío (Elsevier, 2016-11-15)

An experimental and theoretical study about the characterization of the discharge coefficient of diesel injection nozzles under non-cavitating conditions is presented in this paper. A theoretical development based on the ...
Correlations for the ignition characteristics of six different fuels and their application to predict ignition delays under transient thermodynami conditions

Desantes, J.M.; Bermúdez, Vicente; López, J. Javier; López-Pintor, Darío (Elsevier, 2017)

[EN] The ignition characteristics of six different fuels have been correlated as a function of the temperature, pressure, equivalence ratio and oxygen molar fraction in this investigation. More specifically, the ignition ...
Design of synthetic EGR and simulation study of the effect of simplified formulations on the ignition delay of isooctane and n-heptane

Desantes, J.M.; López, J. Javier; Molina, Santiago; López Pintor, Darío (Elsevier, 2015-05-15)

[EN] A method to create synthetic mixtures that simulate the Exhaust Gas Recirculation (EGR) of an internal combustion engine, using O2, N2, CO2, H2O and Ar, has been designed. Different simplifications of this synthetic ...
Development of a fast-virtual CFR engine model and its use on autoignition studies

García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael; Fogué-Robles, Álvaro; Alemahdi, Nika; Tunér, Martin; López Pintor, Darío (Elsevier, 2021-12-15)

[EN] Homogenous charge compression ignition engines have been studied as an alternative to the conventional diesel combustion to attain high efficiency with ultra-low NOx and soot emissions for a wide variety of fuels. ...
Diseño de EGR sintético y estudio, mediante simulación, de la validez de sus distintas simplificaciones en relación a la obtención de tiempos de retraso para isoctano y n-heptano

López Pintor, Darío (Universitat Politècnica de València, 2015-06-19)

[EN] A method to create synthetic mixtures which simulate the EGR of an internal combustion engine, using O2, N2, CO2, H2O and Ar, has been designed. Different simplifications of this synthetic EGR have been validated in ...
Diseño y desarrollo electrónico del control automático del llenado y vaciado de una máquina de compresión rápida

Castillo Ruiz, Julio (Universitat Politècnica de València, 2017-10-16)

[EN] Nowadays, great attention has been paid to the CO2 emissions released to the atmosphere by the process of fuel combustion. In order to decrease the amount of emissions, many studies has been conducted to determine ...
Effect of Dibutyl Ether - Methanol Blend Ratios on Deflagration-Based and Autoignition-Based Knock in Spark-Ignition Engines

Singh, Eshan; Abboud, Rami; Strickland, Tyler; Kim, Namho; López Pintor, Darío; Sjöberg, Magnus (Elsevier, 2024-11-15)

[EN] Methanol is an attractive fuel that can be produced using renewable sources. However, its low reactivity may present challenges to combustion modes (like Spark-Assisted Compression Ignition) that rely on autoignition. ...
Ensayos de autoencendido de mezclas homogéneas en una novedosa máquina de compresión rápida

Pous Soria, Antoni (Universitat Politècnica de València, 2017-09-07)

Actualmente el proceso de combustión en los motores está cambiando muy sustancialmente, dándose escenarios de combustión a baja temperatura, donde las características de autoencendido son muy distintas a las habituales. ...
Experimental validation and analysis of seven different chemical kinetic mechanisms for n-dodecane using a Rapid Compression-Expansion Machine

Desantes, J.M.; López, J. Javier; García-Oliver, José M; López-Pintor, Darío (Elsevier, 2017-08)

[EN] Seven different chemical kinetic mechanisms for n-dodecane, two detailed and five reduced, have been evaluated under Engine Combustion Network (ECN) thermodynamic conditions by comparison to experimental measurements ...
Experimental validation of an alternative method to predict high and low-temperature ignition delays under transient thermodynamic conditions for PRF mixtures using a Rapid Compression-Expansion Machine

Desantes Fernández, José Mª; Bermúdez, Vicente; López, J. Javier; López Pintor, Darío (Elsevier, 2016-12-01)

An alternative procedure to predict both high-temperature stage and cool flames ignition delays under transient thermodynamic conditions is intended to be validated in this paper. An experimental study has been carried ...
Propiedades físico-químicas de diferentes especies para su uso en el análisis del proceso de autoencendido en un motor

Vega Asensio, Álvaro (Universitat Politècnica de València, 2017-07-20)

The study of combustion processes has taken special importance last years. Within these processes we find the autoignition phenomenom, the understanding of which is key in the development of more efficient and eco-friendly ...
Sensitivity analysis and validation of a predictive procedure for high and low-temperature ignition delays under engine conditions for n-dodecane using a Rapid Compression-Expansion Machine

Desantes, J.M.; Bermúdez, Vicente; López, J. Javier; López-Pintor, Darío (Elsevier, 2017-08-01)

[EN] A predictive procedure for cool flames and high-temperature ignition delays based on the accumulation and consumption of chain carriers has been validated for n-dodecane under engine conditions. To do so, an experimental ...
Study of ignition delay time and generalization of auto-ignition for PRFs in a RCEM by means of natural chemiluminescence

Desantes Fernández, José Mª; García Oliver, José María; Vera-Tudela-Fajardo, Walter Martin; López Pintor, Darío; Schneider, B.; Boulouchos, K. (Elsevier, 2016-03-01)

An investigation of the effects of contour conditions and fuel properties on ignition delay time under Homogeneous Charge Compression Ignition (HCCI) conditions is presented in this study. A parametric variation of initial ...
Study of the auto-ignition phenomenon of PRFs under HCCI conditions in a RCEM by means of spectroscopy

Desantes Fernández, José Mª; García Oliver, José María; Vera-Tudela-Fajardo, Walter Martin; López Pintor, Darío; Schneider, B.; Boulouchos, K. (Elsevier, 2016-10-01)

An investigation of the effects of contour conditions and fuel properties on the auto-ignition and combustion process under HCCI conditions is presented in this study. A parametric variation of initial temperature, intake ...
Theoretical and experimental study on the autoignition phenomena of homogeneous reactive mixtures

López Pintor, Darío (Universitat Politècnica de València, 2017-11-07)

The main objective of this Thesis is the study of the autoignition phenomenon of reactive mixtures from a theoretical and experimental point of view. A wide parametric study has been carried out in a Rapid Compression-Expansion ...
Theoretical development of a new procedure to predict ignition delays under transient thermodynamic conditions and validation using a Rapid Compression-Expansion Machine

Desantes Fernández, José Mª; López, J. Javier; Molina, Santiago; López Pintor, Darío (Elsevier, 2016-01-15)

An experimental and theoretical study about the autoignition phenomenon has been performed in this article. A new procedure to predict ignition delays under transient (i.e. variable) thermodynamic conditions has been ...
Validity of the Livengood & Wu correlation and theoretical development of an alternative procedure to predict ignition delays under variable thermodynamic conditions

Desantes Fernández, José Mª; López Sánchez, José Javier; Molina Alcaide, Santiago Alberto; López Pintor, Darío (Elsevier, 2015-11-15)

A theoretical study about the autoignition phenomenon has been performed in this article. The hypotheses of the Livengood & Wu integral have been revised, concluding that the critical concentration of chain carriers is not ...