| 臭氧对CH4/空气稀混合气滞燃期影响规律研究 |
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| 引用本文： | 纪少波,廉静,肖迪,赵胜晋,徐怀民.臭氧对CH4/空气稀混合气滞燃期影响规律研究[J].热科学与技术,2017,16(3):224-228. |
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| 作者姓名： | 纪少波 廉静 肖迪 赵胜晋 徐怀民 |
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| 作者单位： | 山东大学能源与动力工程学院,山东大学能源与动力工程学院,上海交通大学机械与动力工程学院,山东大学能源与动力工程学院,山东大学能源与动力工程学院 |
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| 基金项目： | 内燃机燃烧学国家重点实验室开放基金资助项目（K2017-09）；山东省自然科学基金资助项目（ZR2013EEQ026）;中国博士后基金资助项目（2015M572029）。 |
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| 摘 要： | 为提高气体机稀薄燃烧时的燃烧性能,解决天然气发动机在稀薄燃烧情况下点火能量高以及火焰传播速度慢的问题,提出利用强氧化性的臭氧对燃料进行改质,进而提高天然气燃烧性能的思路。通过Chemkin软件研究臭氧添加对甲烷滞燃期的影响,并对改善燃烧的化学机理进行了初步探索。试验结果表明添加臭氧后,某些重要基元反应的温度敏感性、自由基和中间物质的浓度和出现时间发生较大变化,进而改善了甲烷的点火特性。
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| 关 键 词： | 天然气 臭氧 滞燃期 化学反应动力学 |
| 收稿时间： | 2016/9/23 0:00:00 |
| 修稿时间： | 2017/3/6 0:00:00 |
Influence of ozone addition on ignition delay time in methane-air lean mixture |
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| Ji Shaobo,Lian Jing,Xiao Di,Zhao Shengjin and Xu Huaimin.Influence of ozone addition on ignition delay time in methane-air lean mixture[J].Journal of Thermal Science and Technology,2017,16(3):224-228. |
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| Authors: | Ji Shaobo Lian Jing Xiao Di Zhao Shengjin and Xu Huaimin |
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| Affiliation: | Shandong University,School of Energy and Power Engineering,Ji Nan,Shandong University,School of Energy and Power Engineering,Ji Nan,School of mechanical and power engineering, Shanghai Jiao Tong University,Shandong University,School of Energy and Power Engineering,Ji Nan,Shandong University,School of Energy and Power Engineering,Ji Nan |
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| Abstract: | A new method was proposed to improve lean burnignition and combustion performance of natural gas engine and to solve the problems of high ignition energy and slow flame speed of combustion of natural gas in lean burn condition by using the ozone with strong oxidation. The influence of ozone addition on ignition delay time was studied by using Chemkin software. Results showed that with the addition of ozone, temperature sensitivity of some essential elementary reactions, concentration and occurrence time of certain free radicals and intermediate products changed significantly, and ignition and combustion performance improved as well. |
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| Keywords: | Natural gas ozone ignition delay time chemical reaction kinetics |
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