摘要
以采用燃料和空气预混燃烧方式的微型燃气轮机燃烧室为研究对象,根据设计参数对燃烧室进行建模和模拟计算,模拟不同工况下预混燃料在燃烧室内经过湍流流动并发生燃烧化学反应的过程,进而得到燃烧室内的热态流场、温度分布以及出口烟气中污染物的排放量。结果表明:在总过量空气系数为3.01的情况下,随着旋流器进口当量比的增大以及助燃风质量流量比例的升高,预混火焰的锋面温度有所升高,出口NO_(x)质量浓度与出口温度分布因子呈正相关。
Taking the micro gas turbine combustor with premixed combustion mode of fuel and air as the object,a model was established for the combustor chamber based on design parameters,the process of turbulent flow and chemical reaction during combustion for the premixed fuel in the combustor was simulated under different working conditions,so as to obtain reacting flow field and combustion temperature distribution in the combustor,as well as the emission of pollutants in outlet flue gas.Results show that at the total excess air coefficient of 3.01,as the inlet equivalence ratio of hydrocyclone and the combustion-supporting air ratio increase,front temperature of the premixed flame increases,and the outlet NO_(x) mass concentration is positively correlated with the outlet temperature distribution factor.
作者
黄阳
王文欢
迟志伟
潘卫国
HUANG Yang;WANG Wenhuan;CHI Zhiwei;PAN Weiguo(College of Energy and Mechanical Engineering,Shanghai University of Electric Power,Shanghai 200090,China;Key Laboratory of Clean Power Generation and Environmental Protection Technology in Mechanical Industry,Shanghai 200090,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2021年第12期1054-1060,1102,共8页
Journal of Chinese Society of Power Engineering
基金
上海市科委地方高校能力建设资助项目(19020500900)。
