Ignition Delay Characteristics of Kerosene with Decomposed Hydrogen Peroxide

Ignition Delay Characteristics of Kerosene with Decomposed Hydrogen Peroxide
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分解过氧化氢煤油的着火延迟特性

DOI:
10.2514/1.b35723
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发表时间:
2016-03
影响因子:
1.9
通讯作者:
Wei xiaolin
Wei xiaolin
中科院分区:
工程技术3区
文献类型:
--
作者:
Li Sen;Wei xiaolin

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以正癸烷作为煤油的替代燃料,模拟了过氧化氢分解对煤油着火的化学滞燃期的影响。研究了H2O2浓度、H2O2分解速率和压力对化学延迟的影响。H2O2分解速率较低时,点火延迟时间存在负温度系数现象,压力的增加减弱了负温度系数现象,当压力大于4 MPa时,负温度系数现象基本消失。当压力小于4MPa时,点火延迟时间的RH2O2依赖系数几乎不受H2O2浓度和压力的影响,当RH2O2为70%时,点火延迟时间受RH2O2影响显著。
The ignition chemical delay of kerosene with decomposed hydrogen peroxide was simulated by using n-decane as a surrogate fuel for kerosene. The influences of H2O2 concentration, the H2O2 decomposition rate, and pressure on the chemical delay were investigated. The ignition delay time had the negative temperature coefficient phenomenon for a low H2O2 decomposition rate, and the increasing pressure weakened the negative temperature coefficient phenomenon, which nearly disappeared when the pressure was greater than 4 MPa. An RH2O2-dependent coefficient of the ignition delay time was almost not influenced by H2O2 concentration and pressure when the pressure was less than 4 MPa, and RH2O2 had a noticeable influence on the ignition delay time at RH2O2 70%.
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