Toward highly-efficient combustion of ammonia–hydrogen engine: Prechamber turbulent jet ignition

Fuel, Journal Year: 2023, Volume and Issue: 352, P. 129009 - 129009

Published: June 27, 2023

Language: Английский

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Flame evolution and pressure dynamics of premixed stoichiometric ammonia/hydrogen/air in a closed duct

Fuel, Journal Year: 2024, Volume and Issue: 363, P. 130983 - 130983

Published: Jan. 17, 2024

Language: Английский

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A critical review of NH3–H2 combustion mechanisms

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 196, P. 114363 - 114363

Published: March 12, 2024

Language: Английский

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The present situation, challenges, and prospects of the application of ammonia–coal co-firing technology in power plant boilers

Journal of the Energy Institute, Journal Year: 2024, Volume and Issue: 113, P. 101531 - 101531

Published: Jan. 19, 2024

Language: Английский

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Combustion characteristics of hydrogen, ammonia, and their blends: A review

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134404 - 134404

Published: Jan. 24, 2025

Language: Английский

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Optimizing thermal performances and NOx emission in a premixed ammonia-hydrogen blended meso-scale combustor for thermophotovoltaic applications

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(77), P. 30191 - 30204

Published: May 3, 2023

As a carbon-free energy carrier, ammonia has attracted significant interest in the combustion field as potential substitute for fossil fuels. However, focus been given to application at meso-scale conditions, particularly with regard thermal performance and NOx emissions. Therefore, present study numerically investigates 3-dimensional time-domain premixed ammonia/oxygen combustor optimize its' emission power generation applications. The numerical model is firstly validated by using experimental data available literature. Then, effects of 1) inlet pressure (Pin), 2) equivalence ratio, 3) hydrogen blended ratio on temperature uniformity, outer wall mean (OWMT), NO emission, exergy efficiency are examined. results indicate that increasing Pin intensifies mixing process mixture gases, thus reducing residence time high-temperature flame chamber. optimized OWMT emissions up 26% 40.3% respectively, only 9% compensation standard deviation achieved, when velocity set 0.5 m/s 3.0 bar. Furthermore, varying range 0.95–1.1 minor influence improving performances, but impact mitigating performance. Additionally, blending less than 15% reduction maximum (up 53%); however, can be neglected. Further analysis reveals elevating decrease due increased exergy. In general, this work provides preliminary method an ammonia/hydrogen-oxygen-fueled purpose.

Language: Английский

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Effects of micro-mesopore structure characteristics on methane adsorption capacity of medium rank coal

Fuel, Journal Year: 2023, Volume and Issue: 351, P. 128910 - 128910

Published: June 8, 2023

Language: Английский

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Combustion characteristics and emissions of nitrogen oxides (NO, NO2, N2O) from spherically expanding laminar flames of ammonia–hydrogen blends

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 65, P. 164 - 176

Published: April 5, 2024

Language: Английский

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Effect of vent area on vented ammonia-hydrogen-air deflagrations in a 1-m-long duct

Fuel, Journal Year: 2024, Volume and Issue: 362, P. 130896 - 130896

Published: Jan. 12, 2024

Language: Английский

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Numerical investigation on the flame propagation process of ammonia/hydrogen blends under engine-related conditions

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 60, P. 1041 - 1053

Published: Feb. 24, 2024

Language: Английский

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