TY - JOUR
T1 - The influence of methyl butyrate and n-butanol on the laminar burning characteristics of RP-3
T2 - An experimental and kinetic modeling study
AU - Feng, Guangyuan
AU - Yang, Qing
AU - Liu, Zechang
AU - Jiang, Zhenghui
AU - Zhao, Chengyuan
AU - Jiang, Houshi
AU - Wang, Kun
AU - Fuentes, Andres
AU - Chen, Dongping
AU - He, Xu
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/10/1
Y1 - 2023/10/1
N2 - An experimental study was conducted to investigate the oxidation of methyl butyrate (MB), n-butanol, RP-3 aviation kerosene, and their binary mixtures in laminar premixed flames. The experiments were carried out using the spherical flame method under conditions of P0 = 0.1/0.2/0.3 MPa, T0 = 470 K, φ = 0.8–1.4, and the volume mixing ratio is 20%, 50% and 80%. The effects of adding two potential C4 oxygenated fuels to RP-3 on the laminar burning velocity (SL) and flame instability were first evaluated. A new skeletal mechanism was proposed for this blended fuel system based on the CRECK mechanism, and the new experimental results were extensively used to validate this skeletal mechanism. The results showed that the addition of MB and n-butanol caused a slight decrease and increase, respectively, in the SL of RP-3. After adding 50 % MB and 50% n-butanol, the peak SL of RP-3 decreased by 3.5 cm/s and increased by 2.1 cm/s, respectively. Furthermore, the addition of esters was more favorable for reducing flame instability. Reaction path analysis and flame structure analysis revealed that the effects of adding MB and n-butanol on the oxidation pathway of RP-3 were mainly concentrated in primary oxidation reactions, and their effects on the SL were mainly attributed to changes in the concentrations of OH and H radicals.
AB - An experimental study was conducted to investigate the oxidation of methyl butyrate (MB), n-butanol, RP-3 aviation kerosene, and their binary mixtures in laminar premixed flames. The experiments were carried out using the spherical flame method under conditions of P0 = 0.1/0.2/0.3 MPa, T0 = 470 K, φ = 0.8–1.4, and the volume mixing ratio is 20%, 50% and 80%. The effects of adding two potential C4 oxygenated fuels to RP-3 on the laminar burning velocity (SL) and flame instability were first evaluated. A new skeletal mechanism was proposed for this blended fuel system based on the CRECK mechanism, and the new experimental results were extensively used to validate this skeletal mechanism. The results showed that the addition of MB and n-butanol caused a slight decrease and increase, respectively, in the SL of RP-3. After adding 50 % MB and 50% n-butanol, the peak SL of RP-3 decreased by 3.5 cm/s and increased by 2.1 cm/s, respectively. Furthermore, the addition of esters was more favorable for reducing flame instability. Reaction path analysis and flame structure analysis revealed that the effects of adding MB and n-butanol on the oxidation pathway of RP-3 were mainly concentrated in primary oxidation reactions, and their effects on the SL were mainly attributed to changes in the concentrations of OH and H radicals.
KW - Flame instability
KW - Laminar burning velocity
KW - Methyl butyrate
KW - N-butanol
KW - RP-3
KW - Skeletal mechanism
UR - https://www.scopus.com/pages/publications/85160256649
U2 - 10.1016/j.fuel.2023.128713
DO - 10.1016/j.fuel.2023.128713
M3 - Article
AN - SCOPUS:85160256649
SN - 0016-2361
VL - 349
JO - Fuel
JF - Fuel
M1 - 128713
ER -