Hybrid rich-and lean-premixed ammonia-hydrogen combustion for mitigation of NOx emissions and thermoacoustic instabilities

U Jin, KT Kim - Combustion and Flame, 2024 - Elsevier
The large-scale direct utilization of two carbon-free fuels, ammonia and hydrogen, is
currently attracting significant interest in the context of the development of new gas turbine …

Thermoacoustic parametric instability of premixed ammonia flames propagating downwards in an open-closed tube

JR Delfin, F Guo, N Hashimoto, O Fujita - Fuel, 2024 - Elsevier
This work investigates the self-excited thermoacoustic parametric instability of downward
propagating laminar premixed ammonia flames in an open-closed combustion tube. NH 3/O …

Computational insights into flame development and emission formation in an ammonia engine with hydrogen-assisted pre-chamber turbulent jet ignition

J Zhu, R Liu, H Lin, Z Jin, Y Qian, D Zhou, Y Yin… - Energy Conversion and …, 2024 - Elsevier
Ammonia, as a promising green fuel for achieving carbon neutrality and zero-carbon
emissions, encounters obstacles in practical engine applications due to its intrinsic …

Characterizing combustion instability in non-premixed methane combustion using internal flue gas recirculation

J Cheng, B Liu, T Zhu - Applied Energy, 2024 - Elsevier
Combustion instability (CI) has been widely reported and studied in lean premixed
combustion (LPM), however, there is limited information on the instability aspects in non …

Experimental investigation of the characteristics of combustion in the full hydrogen blending range of methane-hydrogen mixtures in a MILD model combustor

N Yang, Y Xiong, Z Liu, X Xu - International Journal of Hydrogen Energy, 2024 - Elsevier
MILD combustion technology is expected to enable safe and stable low-emission
combustion of hydrogen-doped fuels, or pure hydrogen fuels, in gas turbines designed for …

Blow-Off Limits, Flame Structure, and Emission Characteristics of Lean Partially Premixed Swirl-Stabilized Flames with NH3/CH4

S Lai, D Chen, J Zhang, Y Xie, M Fan, X Li, J Li… - Energy & …, 2024 - ACS Publications
Recently, ammonia/methane mixtures have been considered as potential alternative fuels.
The present study experimentally investigates the blow-off limits, flame structure, and …

Effect of flue gas recirculation on combustion instability and emission characteristics of premixed CH4/NH3/air flame

D Wei, H Fang, H Tang, Y Wang, G Wei… - International Journal of …, 2024 - Elsevier
The hydrogen carrier ammonia is considered a prominent carbon-free alternative fuel. This
paper examines the impact of flue gas recirculation (FR) on combustion instability and …

Exploring the Interaction Chemistry of Ammonia with n-Hexadecane over Wide Pressure Ranges: An Experimental and Kinetic Modeling Study

Y Zhang, W Zhou, L Yu, Y Li, X Lu - Energy & Fuels, 2024 - ACS Publications
Before applying ammonia (NH3)/hydrocarbon fuels in compression ignition engines, it is
important to comprehensively understand the autoignition characteristics. n-Hexadecane (n …

Experimental study on thermoacoustic instability of partially premixed CH4/NH3 flame

D Wei, H Li, H Zhou - International Journal of Hydrogen Energy, 2024 - Elsevier
Carbon-free ammonia is a promising hydrogen energy carrier. Using ammonia as gas
turbine fuel can effectively reduce carbon emissions. This study examines thermoacoustic …

Deflagration dynamics of ammonia-syngas-air premixed flames in T-type tube

S Wei, F Su, H Deng - Fuel, 2025 - Elsevier
In the context of carbon peak carbon neutrality, the carbon-free emission of NH 3
combustion has received increasing attention within the field of combustion, but due to the …