Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Chemical structure and laminar burning velocity of atmospheric pressure premixed ammonia/hydrogen flames. / Osipova, Ksenia N.; Korobeinichev, Oleg P.; Shmakov, Andrey G.
в: International Journal of Hydrogen Energy, Том 46, № 80, 9, 18.11.2021, стр. 39942-39954.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Chemical structure and laminar burning velocity of atmospheric pressure premixed ammonia/hydrogen flames
AU - Osipova, Ksenia N.
AU - Korobeinichev, Oleg P.
AU - Shmakov, Andrey G.
N1 - Funding Information: The reported study was funded by Russian Foundation for Basic Research [grant number 20-33-90163 ]. Publisher Copyright: © 2021 Hydrogen Energy Publications LLC
PY - 2021/11/18
Y1 - 2021/11/18
N2 - This paper presents experimental data on the flame structure of laminar premixed ammonia and ammonia/hydrogen flames at different equivalence ratios (φ = 0.8, 1.0 and 1.2) and the laminar flame speed of ammonia/hydrogen flames (φ = 0.7–1.5) at 1 atm. Experimental data were compared with modeling results obtained using four detailed chemical-kinetic mechanisms of ammonia oxidation. In general, all models adequately predict the flame structure. However, for the laminar burning velocity, this is not so. The main nitrogen-containing species present in the post-flame zone in significant concentrations are N2 and NO. Experimental data and numerical simulations show that the transition to slightly rich conditions enables to reduce NO concentration. Numerical simulation indicate that increasing the pressure rise also results into reduction of NO formation. However, when using ammonia as a fuel, additional technologies should be employed to reduce NO formation.
AB - This paper presents experimental data on the flame structure of laminar premixed ammonia and ammonia/hydrogen flames at different equivalence ratios (φ = 0.8, 1.0 and 1.2) and the laminar flame speed of ammonia/hydrogen flames (φ = 0.7–1.5) at 1 atm. Experimental data were compared with modeling results obtained using four detailed chemical-kinetic mechanisms of ammonia oxidation. In general, all models adequately predict the flame structure. However, for the laminar burning velocity, this is not so. The main nitrogen-containing species present in the post-flame zone in significant concentrations are N2 and NO. Experimental data and numerical simulations show that the transition to slightly rich conditions enables to reduce NO concentration. Numerical simulation indicate that increasing the pressure rise also results into reduction of NO formation. However, when using ammonia as a fuel, additional technologies should be employed to reduce NO formation.
KW - Ammonia
KW - Flame structure
KW - Hydrogen
KW - Laminar flame speed
KW - Molecular beam mass spectrometry
UR - http://www.scopus.com/inward/record.url?scp=85117069822&partnerID=8YFLogxK
UR - https://www.elibrary.ru/item.asp?id=47513365
U2 - 10.1016/j.ijhydene.2021.09.188
DO - 10.1016/j.ijhydene.2021.09.188
M3 - Article
AN - SCOPUS:85117069822
VL - 46
SP - 39942
EP - 39954
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 80
M1 - 9
ER -
ID: 34554447