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

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: 263, P. 125391 - 125391

Published: Jan. 5, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 103, P. 1 - 11

Published: Jan. 16, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 103, P. 999 - 1012

Published: Jan. 25, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 75, P. 104210 - 104210

Published: Jan. 31, 2025

Language: Английский

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

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 134971 - 134971

Published: Feb. 1, 2025

Language: 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, Journal Year: 2025, Volume and Issue: 109, P. 1341 - 1357

Published: Feb. 17, 2025

Language: Английский

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

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135968 - 135968

Published: April 1, 2025

Language: Английский

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

Fuels, Journal Year: 2025, Volume and Issue: 6(2), P. 27 - 27

Published: April 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.

Language: 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, Journal Year: 2025, Volume and Issue: unknown, P. 106126 - 106126

Published: April 1, 2025

Language: 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, Journal Year: 2025, Volume and Issue: unknown, P. 102100 - 102100

Published: April 1, 2025

Language: Английский

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