Guzmán Mendoza, María Gabriela(Universitat Politècnica de València, 2021-10-22)
[ES] A medida que los efectos del calentamiento global se hacen más severos, el estudio de alternativas para tratar de frenarlos, o incluso detenerlos, aumenta su importancia. El sector de transporte es uno de los principales ...
Paraschivoiu, Raquel Andreea(Universitat Politècnica de València, 2023-09-12)
[ES] El amoníaco como combustible se plantea como una de las alternativas para alcanzar la descarbonización del sector del transporte por su capacidad para ser transportado en fase líquida en condiciones de temperatura y ...
Olmeda, P.; García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael(Elsevier, 2018)
[EN] Reactivity controlled compression ignition (RCCI) combustion has demonstrated to be able to avoid the NOx-soot trade-off appearing during conventional diesel combustion (CDC), with similar or better thermal efficiency ...
Ponce Mora, Alberto(Universitat Politècnica de València, 2022-04-04)
[ES] Los sistemas de refrigeración por eyección activados por calor de origen renovable o fuentes de calor residual tienen el potencial de alcanzar ahorros energéticos significativos al sustituir o asistir a los sistemas ...
[EN] New regulations applied to the transportation sector are widening the operation range where the pollutant emissions are evaluated. Besides ambient temperature, the driving altitude is also considered to reduce the gap ...
[EN] The air pressure change as a function of the driving altitude affects negatively the engine performance and emissions as well as the efficiency of the exhaust aftertreatment systems (ATS). These detrimental effects ...
[EN] In order to comply with the legislation, car manufacturers are looking for a way to lower the CO2 emission by improving engine efficiency. About one third of the fuel combustion energy is wasted through exhaust gasses. ...
Luján, José M.; Dolz, Vicente; Monsalve-Serrano, Javier; Bernal-Maldonado, Miguel Angel(SAGE Publications, 2021-02)
[EN] To fulfill the future NOx emission regulations, the use of exhaust gas recirculation could be necessary for the engine starting at cold conditions. In this context, condensation inside the exhaust gas recirculation ...
[EN] This study proposes an innovative concept for online sensing of the injection process. By using the injector inlet as the pressure signal detection point, contactless testing of the injector is achieved, theoretically ...
Serrano, J.R.; Piqueras, P.; De La Morena, Joaquín; Ruiz-Lucas, María José(MDPI AG, 2020-11)
[EN] The earlier activation of the catalytic converters in internal combustion engines is becoming highly challenging due to the reduction in exhaust gas temperature caused by the application of CO2 reduction technologies. ...
[EN] Worldwide pollutant regulations applied to the transportation sector are progressively tightening the emission limits and widening the operating conditions of the type approval tests. As a result, the layout and thermal ...
[EN] Internal combustion engines are now extremely optimized, in such ways improving their performance is a costly task. Traditional engine improvement by experimental means is aided by engine thermodynamic models, reducing ...
[EN] The automotive industry is driven its efforts to cleaner internal combustion engines. As a result, the engine has become conditioned by the exhaust aftertreatment systems. The regeneration of wall-flow particulate ...
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 ...
Ruiz Lucas, María José(Universitat Politècnica de València, 2023-06-09)
[ES] La preocupación mundial por el cambio climático y la calidad del aire se refleja en normativas para la regulación de emisiones en el sector del transporte cada vez más estrictas, situando el desarrollo de sistemas ...
Burgos Quevedo, Paula Rossana(Universitat Politècnica de València, 2023-10-27)
[ES] Teniendo en cuenta la preocupación por la reducción de emisiones en el sector marítimo, el presente trabajo evalúa, mediante modelado y simulación, la oxicombustión en un motor de barco de dos tiempos (2SE) y la mejor ...
Escalona Cornejo, Johan Enrique(Universitat Politècnica de València, 2019-01-16)
En este trabajo se presenta el estudio de la transferencia de calor a través de las paredes de la cámara de combustión de un MCIA, utilizando para ello cálculos conjugados de transferencia de calor (CHT) mediante la ...
[EN] While the influence of inlet geometry on turbocharger compressor behaviour has usually been investigated in terms of performance, surge margin and efficiency, data is scarce regarding the impact of the inlet flow field ...
Luján, José M.; Guardiola, Carlos; Pla Moreno, Benjamín; Reig, Alberto(SAGE Publications, 2019-08)
[EN] This work studies the effect and performance of an optimal control strategy on engine fuel efficiency and pollutant emissions. An accurate mean value control-oriented engine model has been developed and experimental ...
[EN] This paper presents the evaluation of near-future advanced internal combustion engine technologies to reach near zero-emission in vehicles with in the Indian market. Extensive research was carried out to propose the ...