Non-monotonic behaviors of laminar burning velocities of H2/O2/He mixtures at elevated pressures and temperatures (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Non-monotonic behaviors of laminar burning velocities of H2/O2/He mixtures at elevated pressures and temperatures (PDF)
- 发表刊物：
- Int J Hydrogen Energy
- 摘要：
- Both experimental and calculated laminar burning velocities of H2/O2/He mixtures were obtained, with equivalence ratios of 0.6–4.0, initial pressures of 0.1 MPa–0.5 MPa, initial temperature of 373 K, and dilution ratio of 7.0. Laminar burning velocities changed non-monotonically with the increasing initial pressures at equivalence ratios of 1.0–3.0. The decrease of overall reaction orders can explain the non-monotonic relationship between the laminar burning velocities and initial pressures. Consumption and production of both H and HO2 radicals were also obtained to explain the decrease of overall reaction order. The competition of H and HO2 radical between elemental reactions were also discussed. The three body reaction R15 (H + O2(+M) = HO2(+M)) gained more H radical in the competition with R1 (H + O2 = O + OH), producing more HO2 radical. Through the reaction pathway analysis, the restraint in production of both OH and H leaded to a reducing radical pool. The poorer reaction pool would restrain the overall reaction and lead to the reduction of overall reaction order and the non-monotonic behavior of the laminar burning velocity.
- 合写作者：
- Lu X, Hu EJ, Li XJ, Ku JF, Huang ZH
- 卷号：
- 2017, 42(34): 22036-22045
- 页面范围：
- 22036-22045
- 是否译文：
- 否
- 发表时间：
- 2017-08-24
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