...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Low-Temperature Hypergolic Ignition of 1-Octene with Low Ignition Delay Time
【24h】

Low-Temperature Hypergolic Ignition of 1-Octene with Low Ignition Delay Time

机译：低温高压点火1-辛烯，低点火延迟时间

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The attainment of the efficient ignition of traditional liquid hydrocarbons of scramjet combustors at low flight Mach numbers is a challenging task. In this study, a novel chemical strategy to improve the reliable ignition and efficient combustion of hydrocarbon fuels was proposed. A directional hydroboration reaction was used to convert hydrocarbon fuel into highly active alkylborane, thereby leading to changes in the combustion reaction pathway of hydrocarbon fuel. A directional reaction to achieve the hypergolic ignition of 1-octene was designed and developed by using Gaussian simulation. Borane dimethyl sulfide (BDMS), a high-energy additive, was allowed to react spontaneously with 1-octene to achieve the hypergolic ignition of liquid hydrocarbon fuel at ?15 °C. Compared with the ignition delay time of pure 1-octene (565 °C), the ignition delay time of 1-octene/BDMS (9:1.2) decreased by 3850% at 50 °C. Fourier transform infrared spectroscopy and gas chromatography–mass spectrometry confirmed the directional reaction of the hypergolic ignition reaction pathway of 1-octene and BDMS. Moreover, optical measurements showed the development trend of hydroxyl radicals (OH·) in the lower temperature hypergolic ignition and combustion of 1-octene. Finally, this study indicates that the enhancement of the low-temperature ignition performance of 1-octene by hydroboration in the presence of BDMS is feasible and promising for jet propellant design with tremendous future applications.
机译：在低飞行马赫数下实现超燃冲压发动机燃烧室传统液态烃的有效点火是一项具有挑战性的任务。在这项研究中，提出了一种新的化学策略，以提高碳氢燃料的可靠点火和高效燃烧。采用定向硼氢化反应将碳氢燃料转化为高活性烷基硼烷，从而改变碳氢燃料的燃烧反应途径。利用高斯模拟设计并开发了一种实现1-辛烯自燃点火的定向反应。硼烷二甲基硫醚（BDMS）是一种高能添加剂，允许它与1-辛烯发生自发反应，以实现液态烃燃料在？15°C。与纯1-辛烯（565°C）的点火延迟时间相比，1-辛烯/BDMS（9:1.2）在50°C下的点火延迟时间减少了3850%。傅里叶变换红外光谱和气相色谱-质谱证实了1-辛烯和BDMS自燃点火反应途径的定向反应。此外，光学测量还显示了1-辛烯低温自燃燃烧过程中羟基自由基（OH·）的发展趋势。最后，本研究表明，在BDMS存在的情况下，通过硼氢化来提高1-辛烯的低温点火性能是可行的，并有望用于具有巨大未来应用前景的喷气推进剂设计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号