Exploration of the application of passive pre-chamber ignition systems in ammonia-hydrogen engines: Rich, stoichiometric, and lean combustion evaluations DOI

Yanfei Qiang,

Xu Yang, Jinxin Yang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 100, P. 466 - 476

Published: Dec. 24, 2024

Language: Английский

A LES study on the instantaneous H2 jet-ignited combustion characteristics of H2/NH3 mixtures DOI
Yanxu Yin, Shuofeng Wang, Zhe Wang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 86, P. 382 - 394

Published: Aug. 30, 2024

Language: Английский

Citations

0
The Influence of the Intake Geometry on the Performance of a Four-Stroke SI Engine for Aeronautical Applications DOI Creative Commons
Fabio Anaclerio, Annarita Viggiano, Francesco Fornarelli

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(21), P. 5309 - 5309

Published: Oct. 25, 2024

In this work, the influence of plenum and port geometry on performance intake process in a four-stroke spark ignition engine for ultralight aircraft applications is analyzed. Three systems are considered: so-called “standard plenum”, with relatively small volume, “V1 larger plenum” equipped large curvature manifold called “G2 port”. Both measurements 3D CFD simulations, by using Ansys® Academic Fluent, Release 20.2, performed to characterize analyze steady-flow field system selected valve lifts. The experimental data numerical results excellent agreement each other. show that at maximum lift, i.e., 12 mm, V1 allows an increase air mass flow rate 9.1% 9.4% compared standard port”, respectively. addition, volumetric efficiency has been estimated under unsteady-flow conditions all geometries high rpms. difference between less than 1% plenum, thus proving accuracy model, which then used study other configurations. shows fairly constant as speed increases, although such lower two considered work. Specifically, use port” leads 1.5% terms respect configuration original manifold. Furthermore, configuration, higher turbulent kinetic energy swirl tumble ratios observed. This expected result improvement air–fuel mixing flame propagation.

Language: Английский

Citations

0
The use of ammonia as a zero carbon heavy duty IC engine fuel for low criteria pollutant emissions– Simulation of an I.C. Engine with exhaust reforming DOI

David Mark Heaton,

Alasdair Cairns

Fuel, Journal Year: 2024, Volume and Issue: 384, P. 133538 - 133538

Published: Dec. 10, 2024

Language: Английский

Citations

0
Development of an ammonia combustion model integrated in a 3D-CFD code for assessing the performance and NO emissions of an ammonia-hydrogen fueled spark-ignition engine DOI
George Kosmadakis, Dimitrios Rakopoulos, Wojciech Tutak

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 99, P. 739 - 751

Published: Dec. 19, 2024

Language: Английский

Citations

0
Exploration of the application of passive pre-chamber ignition systems in ammonia-hydrogen engines: Rich, stoichiometric, and lean combustion evaluations DOI

Yanfei Qiang,

Xu Yang, Jinxin Yang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 100, P. 466 - 476

Published: Dec. 24, 2024

Language: Английский

Citations

0