Turbulent burning characteristics of FACE-C gasoline and TPRF blend associated with the same RON at elevated pressures
Turbulent burning characteristics of FACE-C gasoline and TPRF blend associated with the same RON at elevated pressures
复制标题
FACE-C 汽油和 TPRF 混合物在高压下与相同 RON 相关的湍流燃烧特性
DOI：
10.1016/j.expthermflusci.2018.02.019
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发表时间：
2018
影响因子：
3.2
通讯作者：
W. Roberts
中科院分区：
文献类型：
--
作者：
Ossama A. Mannaa;P. Brequigny;C. Mounaïm;F. Foucher;S. Chung;W. Roberts
研究辛烷值(RON)为85的先进内燃机燃料C汽油/空气和甲苯基准燃料(51.6 体积%异辛烷、21.5 体积%正庚烷和26.9 体积%甲苯)/空气混合物在风扇搅拌的湍流容器中的燃速被表征，并使用高速双纹影成像技术进行拍摄。同时，用Mie散射平面激光层析成像技术研究了不同湍流长度尺度同时存在时火焰形态的变化，以及在高压下(通过Darrieus-Landau不稳定性)发展胞状结构的可能性。在初始压力为0.1、0.5和1.0 Mpa、初始温度为35 8 K、测量的湍流强度范围为0.5~2.0 m/S的条件下进行了测量，评价了湍流燃烧速度随湍流强度的变化规律。没有弯曲区域是基于容器的大小和在本工作中调查的有限范围的湍流强度来解释的。对于不同的火焰类型结构，所有现有的数据都用幂函数关联式进行了经验关联，以测试其对所研究燃烧器的几何形状和类型的敏感性。
Fuels for Advanced Combustion Engine (FACE)-C gasoline/air and toluene primary reference fuel (TPRF) (51.6 vol%iso-octane, 21.5 vol%n-heptane and 26.9 vol% toluene)/air mixtures corresponding to the same Research Octane numbers (RON) of 85 were characterized in terms of determining their burning rates in a fan stirred turbulent vessel and filmed using a high-speed dual Schlieren imaging technique. Also, a Mie scattering planar laser tomography was employed to characterize the variations of flame morphology induced by the simultaneous existences of different turbulent length scales and the susceptibility to develop cellular structures at elevated pressures (through the Darrieus-Landau instability). Measurements were performed in a well-controlled environment of initial pressures 0.1, 0.5 and 1.0 MPa at a fixed initial temperature of 358 K at a range of measured turbulence intensities from 0.5 to 2.0 m/s. The enhancement of turbulent burning velocitySTas a function of turbulence intensity was evaluated. The absence of bending regime was accounted for based on the size of the vessel and limited range of turbulent intensities investigated in the present work. All the present data were empirically correlated by power-law correlation derived for a different flame-type configuration to test its sensitivity to the geometry and type of the burner investigated.
影响因子：
3.4
作者：
Kobayashi, H;Seyama, K;Ogami, Y
通讯作者：
Ogami, Y