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Browsing by Subject "Pollutant emissions"

Now showing items 1-20 of 25

Analysis of the combustion process, pollutant emissions and efficiency of an innovative 2-stroke HSDI engine designed for automotive applications

Benajes Calvo, Jesus Vicente; Novella Rosa, Ricardo; De Lima Moradell, Daniela Andreina; Tribotte, Pascal; Quechon, Nicolas; Obernesser, Philippe; Dugue, Vincent (Elsevier, 2013-09)

[EN] On the last years engine researchers has been focused on improving engine efficiency in order to decrease CO2 emissions and fuel consumption, while fulfilling the increasingly stringent pollutant emissions regulations. ...
Análisis del rendimiento del sistema de postratamiento de un MEP propulsado con GLP.

Conde Pabón, Brayan Yessid (Universitat Politècnica de València, 2021-12-08)

[ES] El principal objetivo de este trabajo consiste en analizar el rendimiento de un sistema de postratamiento, compuesto por un catalizador de tres vías (TWC) y un filtro de partículas (PF). Dispositivos empleados en el ...
Certificación según directiva 2014168 UE de un equipo a presión para su desarrollo en fábrica

Diez Rodriguez, Alonso (Universitat Politècnica de València, 2021-09-09)

[ES] El siguiente documento tiene como objeto ajustar los cálculos mecánicos y el diseño estructural de la parte presurizada a presión de una caldera con capacidad para producir un caudal de salida de 50 kg/h de vapor a ...
Computational optimization of the combustion system of a heavy duty direct injection diesel engine operating with dimethyl-ether

Benajes, Jesús; Novella Rosa, Ricardo; Pastor Enguídanos, José Manuel; Hernández-López, Alberto; Kokjohn, Sage L. (Elsevier, 2018)

[EN] A genetic algorithm optimization methodology is applied to the design of the combustion system of a heavy-duty diesel engine fueled with dimethyl ether (DME). The optimization includes the key combustion system related ...
Development and validation of a virtual engine model for simulating standard testing cycles

Auñón García, Ángel (Universitat Politècnica de València, 2021-07-05)

[ES] Las nuevas regulaciones en materia de emisiones de efecto invernadero y calidad del aire han conducido la evolución tecnológica de los motores de combustión interna durante los últimos años. Las mejoras en el proceso ...
Diseño de reactor para la caracterización de sistemas de post-tratamiento de gases de escape de motores en un banco de gases sintéticos

Cáceres Cavero, Sergio (Universitat Politècnica de València, 2017-09-29)

The project aims to: - Design all reactor elements for the evaluation of monoliths of the catalysts used to reduce emissions of NOx, HC and CO - Select reactor thermal conditioning systems - Select the appropriate ...
Estudio de las características del hidrógeno como combustible y de las implicaciones sobre el diseño y funcionamiento de un MCIA.

Torre González, Christian Iván (Universitat Politècnica de València, 2022-09-01)

[ES] El trabajo propuesto tiene como propósito principal el estudio del hidrógeno como combustible, analizando sus principales diferencias con otros combustibles convencionales a la hora de ser introducido en un MCIA dadas ...
Estudio del efecto de la estrategia de inyección de combustible sobre las emisiones de escape reguladas de un MEP sobrealimentado de inyección directa

Soto Izquierdo, Lian (Universitat Politècnica de València, 2017-08-28)

[EN] In order to improve performance and minimize pollutant emissions in GTDi engines, different strategies and technologies are being investigated. Either the inclusion of EGR or the variation of the SOI are some of the ...
Experimental assessment of an exhaust heat recovery system applied in a New European Driving Cycle at low temperature

Moratal Martínez, Ausiás Alberto (Universitat Politècnica de València, 2015-07-17)

[EN] Pollutant emissions and fuel consumption are one of the majors themes that automotive engineers have to face. Cold engine start and warming up analysis have become important topics for researches. In order to improve ...
HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system. Part 1: Study and analysis of the waste heat energy

Dolz Ruiz, Vicente; Novella Rosa, Ricardo; García Martínez, Antonio; Sánchez Serrano, Jaime (Elsevier, 2012-04)

This paper describes the study of different bottoming Rankine cycles with water-steam and/or ORC configurations in classical and innovative setups such as a waste heat recovery system in a Heavy Duty Diesel (HDD) Engine. ...
HD Diesel engine equipped with a bottoming Rankine cycle as a waste heat recovery system. Part 2: Evaluation of alternative solutions

Serrano Cruz, José Ramón; Dolz Ruiz, Vicente; Novella Rosa, Ricardo; García Martínez, Antonio (Elsevier, 2012-04)

A theoretical investigation has been performed on the feasibility of introducing a waste heat recovery (WHR) system in a two-stage turbocharged HDD engine. The WHR is attained by introducing a Rankine cycle, which uses an ...
Impact of gasoline and Diesel blends on combustion noise and pollutant emissions in Premixed Charge Compression Ignition engines

Torregrosa, A. J.; Broatch, A.; Novella Rosa, Ricardo; Gómez-Soriano, Josep; Monico Muñoz, Luisa Fernanda (Elsevier, 2017-10-15)

[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 ...
Impact of injection settings operating with the gasoline Partially Premixed Combustion concept in a 2-stroke HSDI compression ignition engine

Benajes, Jesús; Novella Rosa, Ricardo; De Lima, D.; Thein, Kévin Jean Lucien (Elsevier, 2017-05-01)

[EN] Partially Premixed Combustion (PPC) using gasoline-like fuels has proven its potential to control or even break the NOx and soot emissions trade-off, retaining the high efficiency levels characteristic of the conventional ...
Implementation of the Partially Premixed Combustion concept in a 2-stroke HSDI diesel engine fueled with gasoline

Benajes Calvo, Jesus Vicente; Molina Alcaide, Santiago Alberto; Novella Rosa, Ricardo; De Lima Moradell, Daniela Andreina (Elsevier, 2014-06-01)

Partially Premixed Combustion (PPC) of fuels in the gasoline octane range has proven to combine low NOX and soot emissions with high indicated efficiencies, while still retaining control over combustion phasing with the ...
Influence of ambient temperature on diesel engine raw pollutants and fuel consumption in different driving cycles

Luján, José M.; Climent, H.; Ruiz-Rosales, Santiago; Moratal, Ausias (SAGE Publications, 2019-10)

[EN] The effect of low ambient temperature on diesel raw pollutant emissions is analysed in two different driving cycles: NEDC and WLTC. The study is focused on hydrocarbons, carbon monoxide, nitrogen oxides and fuel ...
Influence of Environmental Changes Due to Altitude on Performance, Fuel Consumption and Emissions of a Naturally Aspirated Diesel Engine

Ceballos, John Jairo; Melgar, Andrés; Tinaut-Fluixá, Francisco Vicente (MDPI AG, 2021-09)

[EN] The present study shows the effects of environmental conditions (atmospheric temperature, pressure and relative humidity) due to altitude changes on performance, fuel consumption and emissions in a naturally aspirated ...
INFLUENCE OF THE MIXTURE PREPARATION ON THE COMBUSTION IN DIRECT INJECTION ENGINES

GASTALDI, PATRICK (Universitat Politècnica de València, 2015-03-31)

During the last two centuries, the development of the internal combustion engine has followed the evolution of the customer expectations. From the race for pure performances, high power, and fun to drive, perfectly well ...
Modelling and analysis methodology of SI IC engines turbocharged by VGT

Gómez Vilanova, Alejandro (Universitat Politècnica de València, 2022-04-01)

[ES] Se espera que la nueva generación de motores de encendido provocado represente la mayor parte del mercado en el contexto de la propulsión de vehículos con o sin hibridación. Sin embargo, la tecnología actual todavía ...
Motor con oxicombustión hibridizado en ciclo WLTC

Tuñón Molina, Javier (Universitat Politècnica de València, 2021-09-02)

[ES] Actualmente nos encontramos en una situación de emergencia climática sin precedentes, a la que los gobiernos y organizaciones internacionales están respondiendo con medidas de control y reducción de emisiones contaminantes ...
Potential of exhaust heat recovery for intake charge heating in a Diesel engine transient operation at cold conditions

Lujan Martinez, José Manuel; Climent Puchades, Héctor; Dolz Ruiz, Vicente; Moratal Martínez, Ausiás Alberto; Borges Alejo, José; Soukeur, Zoulikha (Elsevier, 2016-07-25)

In this paper, an experimental facility is implemented with the aim of improving the performance of internal combustion engines working at low ambient temperatures. Pollutant emissions and fuel consumption are one of the ...