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Listar por palabra clave "Lean combustion"

Mostrando ítems 1-9 de 9

Advantages of hydrogen addition in a passive pre-chamber ignited SI engine for passenger car applications

Benajes, Jesús; Novella Rosa, Ricardo; Gómez-Soriano, Josep; Barbery-Avila, Ibrahim Ignacio; Libert, C. (John Wiley & Sons, 2021-07)

[EN] Hydrogen is one of the most promising alternative fuels for the transportation industry. The use of hydrogen to enable lean burn in internal combustion engines is an attractive solution for reducing CO2 emissions from ...
Computational study on the non-reacting flow in Lean Direct Injection gas turbine combustors through Eulerian-Lagrangian Large-Eddy Simulations

Belmar Gil, Mario (Universitat Politècnica de València, 2021-01-21)

[ES] El principal desafío en los motores turbina de gas empleados en aviación reside en aumentar la eficiencia del ciclo termodinámico manteniendo las emisiones contaminantes por debajo de las rigurosas restricciones. Ésto ...
Desarrollo de una metodología 1-D para evaluar el proceso de combustión en pre-cámaras activas

Belda Torres, Adrián (Universitat Politècnica de València, 2021-02-05)

[ES] Los motores de gas para generación de energía están ocupando cada vez mayores cuotas de mercado con respecto a los motores diésel. Con el fin de poder cumplir con las normativas anticontaminantes, la combustión lean ...
Effect of passive pre-chamber orifice diameter on the methane combustion process in an optically accessible SI engine

Beltrao de Vargas-Antolini, Jacson; Sementa, Paolo; Tornatore, Cinzia; Catapano, Francesco; Vaglieco, Bianca Maria; Desantes, J.M.; López, J. Javier (Elsevier, 2023-06-01)

[EN] Due to its potential to extend the lean limit or overcome knock-limited conditions on spark-ignited (SI) engines, the pre-chamber spark-ignition (PCSI) concept has gained attention as an efficient alternative to the ...
Evaluation of a stratified prechamber ignition concept for vehicular applications in real world and standardized driving cycles

Roso, Vinícius Rückert; Santos, Nathália Duarte Souza Alvarenga; Valle, Ramon Molina; Castilla Alvarez, Carlos Eduardo; Monsalve-Serrano, Javier; García Martínez, Antonio (Elsevier, 2019-11-15)

[EN] The aim of this paper is to evaluate the potential of a prechamber ignition system to reduce the exhaust emissions and fuel consumption of commercial vehicles in the conditions proposed by the standardized and real-world ...
Exploring the potentials of lean-burn hydrogen SI engine compared to methane operation

Sementa, Paolo; Beltrao de Vargas-Antolini, Jacson; Tornatore, Cinzia; Catapano, Francesco; Vaglieco, Bianca Maria; López, J. Javier (Elsevier, 2022-07-12)

[EN] The global rush for decarbonization and the more restrictive emission regulations are pushing the research for cleaner powertrains to the transport sector. In this sense, this work contributes with an experimental ...
Impact of medium-pressure direct injection in a spark-ignition engine fueled by hydrogen

Molina, Santiago; Novella Rosa, Ricardo; Gómez-Soriano, Josep; Olcina-Girona, Miguel (Elsevier, 2024-03-15)

[EN] In the automotive sector, hydrogen is being increasingly explored as an alternative fuel to replace conventional carbon-based fuels. Its combustion characteristics make it well-suited for adaptation to internal ...
Impact of prechamber design and air-fuel ratio on combustion and fuel consumption in a SI engine equipped with a passive TJI

Frasci, Emmanuele; Novella Rosa, Ricardo; Pla Moreno, Benjamín; Arsie, Ivan; Jannelli, Elio (Elsevier, 2023-08-01)

[EN] The increasing concern about Greenhouse Gas (GHG) emissions led the European Union to introduce increasingly stringent limits to the CO2 from road vehicles, with an impact on the sales of passenger cars. Vehicles ...
Investigation of the benefits of passive TJI concept on cycle-to-cycle variability in a SI engine

Frasci, Emmanuele; Novella Rosa, Ricardo; Pla Moreno, Benjamín; Arsie, Ivan; Jannelli, Elio (SAGE Publications, 2023-08)

[EN] During the last years, the sales of vehicles equipped with Spark-Ignition (SI) engines have increased, to the detriment of those powered by Compression-Ignition (CI) engines. However, SI engines provide lower efficiency ...