Experimental study of the kinetics of ethanol pyrolysis and oxidation behind reflected shock waves and in laminar flames
Experimental study of the kinetics of ethanol pyrolysis and oxidation behind reflected shock waves and in laminar flames
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DOI：
10.1016/j.proci.2014.05.063
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发表时间：
2015-01-01
影响因子：
3.4
通讯作者：
Schulz, C.
中科院分区：
文献类型：
--
作者：
Aghsaee, M.;Nativel, D.;Schulz, C.
在1047-2518K的激波管中，研究了初始压力为1.06和2.07bar的乙醇混合物在高温下的热解和氧化。利用高重复频率飞行时间质谱仪(TOF-MS)对裂解和氧化中间产物进行了研究。点火延迟时间由化学发光测量确定，羟基浓度由环形染料激光吸收测量以高时间分辨率确定。在球形爆发器中测量了乙醇在空气中的层流火焰速度，初始温度为318~473K，当量比为0.7~1.5。将测量结果与基于文献中各种机制的模拟结果进行了比较。这一比较表明，Ranzi等人开发的机制。(2012)提供了与高温下乙醇氧化的测量数据最好的一致性。(C)2014年，由爱思唯尔公司代表燃烧研究所出版。
The pyrolysis and oxidation of ethanol mixtures at high temperature is studied in a shock tube in the 1047-2518 K range at initial pressures of 1.06 and 2.07 bar. Pyrolysis and oxidation intermediates were investigated with high-repetition-rate time-of-flight mass spectrometry (TOF-MS). Ignition delay times were determined from chemiluminescence measurements and the OH concentration was determined with high time resolution from ring dye laser absorption measurements. Laminar flame speeds of ethanol in air were measured in a spherical bomb for initial temperatures between 318 and 473 K at 1, 2, and 5 bar and for equivalence ratios from 0.7 to 1.5. The measurements were compared to simulations based on various mechanisms from the literature. This comparison showed that the mechanism developed by Ranzi et al. (2012) provides the best agreement with the measured data for ethanol oxidation at high temperature. (C) 2014 Published by Elsevier Inc. on behalf of The Combustion Institute.