甲醇喷入对主燃烧室燃烧性能的影响  

Effect of methanol injection on the combustion performance of the main combustor

作　　者：刘大瑞 颜应文[1] LIU Darui;YAN Yingwen(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《燃气涡轮试验与研究》2024年第3期27-36,共10页Gas Turbine Experiment and Research

摘　　要：为探究甲醇水溶液喷入对航空发动机主燃烧室燃烧性能的影响,通过迭代理论计算,得到喷入不同甲醇水溶液后的主燃烧室进口条件;再利用FLUENT软件,研究了不同甲醇水溶液参数对航空发动机主燃烧室燃烧性能的影响。结果表明:甲醇水溶液喷入会降低整体燃烧温度,且随着甲醇替代率和含水量的增加,燃烧室中最高燃烧温度、出口平均温度和燃烧效率均逐步降低,NO排放量显著降低;在保证甲醇和航空煤油的燃烧总热值相等的条件下,主燃烧室温升总体差距较小。In order to explore the effect of methanol aqueous solution injection on the combustion performance of the aero gas turbine main combustor,the inlet conditions of the combustor after injection of different methanol aqueous solutions were calculated by iterative theory,and then the influence of different methanol aqueous solution parameters on the combustion performance of the aero gas turbine main combustor was numerically calculated by FLUENT software.The results show that the injection of methanol aqueous solution will reduce the overall combustion temperature,and with the increase of methanol substitution rate and water content,the maximum combustion temperature,average outlet temperature,and combustion efficiency in the combustor will gradually decrease,and the NO emission will be significantly reduced.Because the total calorific value of methanol and aviation kerosene is guaranteed to be equal,the overall difference between the temperature rise of the main combustor is small.

关 键 词：涡轮基组合循环发动机 燃烧室 甲醇水溶液 煤油 燃烧性能 数值研究 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]