Effects of flow–flame interactions on the stabilization of ultra-lean swirling CH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1190" altimg="si154.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:math>/H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1198" altimg="si155.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>/air flames

Mao, Runze; Wang, Jinhua; Lin, Wenjun; Han, Wang; Zhang, Weijie; Huang, Zuohua

doi:10.1016/j.fuel.2022.123619

Cited by 17 publications

(2 citation statements)

References 62 publications

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“…Higher Cr (more hydrogen) reduces the effective Lewis number of the mixture, leading to a favorable flame response to positive strain. Consequently, this factor contributes to the observed widening of the PDF distributions and the flame stabilization in highly strained regions …”

Section: Resultsmentioning

confidence: 99%

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Experimental and Numerical Investigation on Combustion Characteristics of Cracked Ammonia Flames

An,

Zhang,

Zhang

et al. 2024

Energy Fuels

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The combustion characteristics of cracked NH 3 flames are investigated experimentally and numerically. The one-dimensional (1D) calculations are performed to validate the accuracy of the reaction mechanisms in cracking conditions and to understand the fundamental characteristics of the cracked NH 3 flames. In the experiments, the local distributions of OH and NO and the species emissions of NO, NO 2 , N 2 O, and NH 3 are measured using hydroxyl radical planar laser-induced fluorescence (OH-PLIF), NO* chemiluminescence, and Fourier transform infrared (FTIR) spectroscopy, respectively. The effects of partial cracking on the flame structure and emission characteristics are investigated. In addition, the large eddy simulations (LESs) with flameletgenerated manifold (FGM) methods, which consider the preferential diffusion effect, are conducted to understand the validity of the LES and to further elucidate the effects of the cracking ratio (Cr) on cracked NH 3 flames. The 1D calculation results show that reaction mechanisms by Mei et al. (Mei, B.; Zhang, J.; Shi, X.; Xi, Z.; Li, Y. Enhancement of ammonia combustion with partial fuel cracking strategy: Laminar flame propagation and kinetic modeling investigation of NH 3 /H 2 /N 2 /air mixtures up to 10 atm. Combust.

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Section: Resultsmentioning

confidence: 99%

“…Consequently, this factor contributes to the observed widening of the PDF distributions and the flame stabilization in highly strained regions. 56 3.3.3. NO Emissions.…”

Section: Hrr and Flow−flame Interactionmentioning

confidence: 99%