齊飛 劉世林 陳旸 胡水明 蘇紅梅
摘要:燃燒為現代社會提供了約80%的能源,在工業、運輸、國防等領域均具有不可替代的作用。當前,燃燒學逐步從宏觀現象學轉向注重亞微尺度的湍流模擬和原分子層次的燃燒化學動力學研究,深入了解燃料組分、分子結構和燃燒條件與燃燒效率及污染物排放等的關系。開展對于航空燃料和新興生物質燃料的燃燒本質和機理研究,在國家安全和能源戰略等方面都具有重要意義。本年度主要針對真空紫外光電離技術在燃燒研究中的應用、航空燃料重要組分和生物質燃料燃燒化學動力學等方面開展了研究工作。在真空紫外光電離技術在燃燒研究中的應用方面,課題組將同步輻射真空紫外光電離質譜技術應用于常壓層流預混火焰、煤熱解和生物質熱解等方面的研究,并在國際權威燃燒學期刊刊登文章,介紹對基于同步輻射的燃燒診斷方法的突破性發展以及在燃燒研究中的開拓性應用。在航空燃料重要組分和生物質燃料燃燒化學動力學研究方面,針對航空燃料重要組分甲基環己烷的熱解及燃燒開展了實驗和動力學模型研究,針對仲丁醇的熱解和燃燒、正丁醇摻混的甲烷同軸擴散火焰和丙酸甲酯的低壓熱解開展了實驗和動力學模型研究,對這些熱點生物質燃料的燃燒化學動力學問題開展了深入的探索。
關鍵詞:燃燒;能源;航空燃料;生物質燃料;真空紫外光電離;激光診斷;化學動力學;模型
Annual report of combustion chemical kinetics research 2013
Abstract:Combustion provides over 80% energy supply for modern society, and plays irreplaceable roles in core fields such as industry, transportation and national defense. At present, combustion studies are moving from macroscale phenomenology to microscale turbulent simulation and combustion chemical kinetics, focusing on understanding the relationships of fuel compositions, molecule structures and combustion conditions with combustion efficiencies and pollutant emissions. In particular, the studies of combustion chemical kinetics of jet fuels and biofuels are very significant for national security and energy sustainability. In this year, our research focuses on the applications of vacuum ultraviolet (VUV) photoionization method in combustion research, combustion chemical kinetics of important components in jet fuels, combustion chemical kinetics of biofuels, and so on. For the first topic, we applied the VUV photoionization method in various combustion research fields, such as atmospheric pressure premixed flame studies, coal pyrolysis, biomass pyrolysis, and so on. We also published an invited paper on Proceedings of the Combustion Institute which is the most prestigious combustion journal, introducing our pioneering development of the synchrotron-based combustion diagnostic tool and applications of it in various fields of combustion research. In studies of combustion chemical kinetics of important components of jet fuels, we also performed an experimental and kinetic modeling investigation on the pyrolysis and oxidation of methylcyclohexane. In studies of combustion chemical kinetics of hot biofuels, we investigated the pyrolysis and oxidation of sec-butanol, the coflow diffusion n-butanol/methane flames and the low-pressure pyrolysis of methyl propionate. In 2013, we published over 37 papers on famous SCI journals in related fields, such as Proceedings of the Combustion Institute, Combustion and Flame, Journal of the American Chemical Society, Physical Review Letters, Review of Scientific Instruments, Energy & Fuels, Journal of Chemical Physics, Journal of Physical Chemistry C, Journal of Physical Chemistry C and Optical Letters, and finished the planned research targets.
Keywords:Combustion; Energy; Jet fuels; Biofuels; VUV photoionization; Laser diagnostics; Chemical Kinetics; Kinetic model
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