微藻生物航空煤油/RP-3航空煤油混合燃料的着火与燃烧特性研究

为缓解石油供应压力，减少CO2排放，航空业一直在寻求和开发各种可再生清洁能源。生物航空煤油因具有原料易得、可再生、污染少等优点而备受关注。但是生物航空煤油基础燃烧特性研究较少，燃烧反应机理尚未明确。为此，本项目拟开展微藻生物航空煤油及其与RP-3航空煤油混合燃料着火与燃烧特性实验及燃烧机理研究。分析微藻生物航空煤油及其混合燃料的理化性质；在激波管和定容燃烧弹中获得微藻生物航空煤油及其混合燃料着火延迟时间和层流燃烧速度等，阐明微藻生物航空煤油对RP-3航空煤油着火与燃烧特性的影响机理；优化模拟替代燃料遴选标准，确定微藻生物航空煤油模拟替代燃料，构建其燃烧反应机理；综合RP-3航空煤油燃烧反应机理，形成混合燃料详细燃烧反应机理，并进行简化；采用相应工况着火与燃烧特性实验数据对微藻生物航空煤油及其混合燃料的详细及简化机理进行验证。该项研究将为微藻生物航空煤油在航空发动机中的应用提供必要理论依据。

In order to alleviate the presssure of oil supply and reduce CO2 emission, the aviation industry has been seeking and developing all kinds of clean and renewable energy. Because of easy to get raw materials, renewable, less pollution and other advantages, the aviation biofuel has attracted great attention. However, there is few study on its fundamental combustion characteristics, and the combustion reaction mechanism is not clear. To this end, the experimental and combustion mechanism study on the ignition and combustion characteristics of algae-derived aviation biofuel and its blends with RP-3 aviation kerosene will be accomplished in this project. The physical and chemical properties of the algae-derived aviation biofuel and its blends will be analyzed; the experimental data such as ignition delay time and laminar burning rate will be obtained with a shock tube and a constant volume combustion chamber, and the influence of algae-derived aviation biofuel on the ignition and combustion characteristics of RP-3 aviation kerosene will be clarified; with the optimization of selection criterions, the surrogate fuel of algae-derived aviation biofuel will be determined and the combustion reaction mechanism of algae-derived aviation biofuel will be constructed; the combustion reaction mechanism of the blended fuel will be contructed by intergrating with RP-3 kerosene reaction mechanism and reduced, and the combustion reaction mechansim of algae-derived aviation biofuel and its blends will be verified with the corresponding experimental data. This project can provide the necessary theoretical basis for the application of algae-derived aviation biofuel in aviation engine.