Three-dimensional simulation analysis of in-cylinder combustion in space in-orbit hydrogen–oxygen internal combustion engine

Applied Thermal Engineering, Год журнала: 2025, Номер 263, С. 125391 - 125391

Опубликована: Янв. 5, 2025

Язык: Английский

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Comparison between homogeneous combustion and stratified combustion caused by direct injection timing adjustment in lean-burn hydrogen internal combustion engine

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 103, С. 1 - 11

Опубликована: Янв. 16, 2025

Язык: Английский

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Numerical investigation on the synergistic effect of intake air temperature and hydrogen volume ratio on combustion and emissions of ammonia-enriched hydrogen spark-ignition engine

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 103, С. 999 - 1012

Опубликована: Янв. 25, 2025

Язык: Английский

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Performance and combustion characteristics of Heavy-Fuel aircraft piston engines at high altitudes: Comparison between conventional fuels and HEFA sustainable aviation fuel

Sustainable Energy Technologies and Assessments, Год журнала: 2025, Номер 75, С. 104210 - 104210

Опубликована: Янв. 31, 2025

Язык: Английский

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Comprehensive multi-performance research of hydrogen-fueled Wankel rotary engine by experimental and data-driven methods

Energy, Год журнала: 2025, Номер unknown, С. 134971 - 134971

Опубликована: Фев. 1, 2025

Язык: Английский

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Effect of injection hole distribution on the mixture formation, combustion, and emission characteristics in a direct-injection hydrogen engine

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 109, С. 1341 - 1357

Опубликована: Фев. 17, 2025

Язык: Английский

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Ammonia-hydrogen direct injection in a rotary engine:A pathway to cleaner combustion

Energy, Год журнала: 2025, Номер unknown, С. 135968 - 135968

Опубликована: Апрель 1, 2025

Язык: Английский

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Optimization of Hydrogen Combustion in Diesel Engines: A CFD-Based Approach for Efficient Hydrogen Mixing and Emission Reduction

Fuels, Год журнала: 2025, Номер 6(2), С. 27 - 27

Опубликована: Апрель 8, 2025

Hydrogen internal combustion engines (ICEs) have gained significant attention as a promising solution for achieving zero-carbon emissions in the transportation sector. This study investigates conversion of 2 L Diesel ICE into lean hydrogen-powered ICE, focusing on key challenges such hydrogen mixing, pre-ignition, flame development, and NOx emissions. The novelty this research lies specific modifications made to optimize engine performance reduce while utilizing existing infrastructure. identifies several important design changes successful hydrogen, including following: Intake port design: transitioning from swirl tumble enhance mixing; Injection spark plug configuration: using lateral injection system combined with central improve combustion; Piston employing lenticular piston shape adaptable depth Mitigating Coanda effect: preventing issues at deflectors or caps; Head maintaining flat head efficient ensuring adequate cooling avoid pre-ignition. These findings highlight importance converting providing solid foundation further ICEs, which could contribute carbon emission reduction more sustainable energy transition.

Язык: Английский

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General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine

Case Studies in Thermal Engineering, Год журнала: 2025, Номер unknown, С. 106126 - 106126

Опубликована: Апрель 1, 2025

Язык: Английский

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Insight into the combustion and emission characteristics of an ammonia-hydrogen dual-fuel opposed rotary piston engine

Journal of the Energy Institute, Год журнала: 2025, Номер unknown, С. 102100 - 102100

Опубликована: Апрель 1, 2025

Язык: Английский

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