论文部分内容阅读
为研究低旋流燃烧(LSC)技术背离传统旋流燃烧机理的燃烧方式,以及其所具有的燃烧效率高、稳定性强、火焰区域温度低和NOx排放量极低等特点,采用数值模拟方法,对LSC燃烧和流动特性以及受喷射器多孔板阻塞比的影响进行初步研究.结果表明:LSC喷射器能够形成典型扩散湍流流动和“扫帚形”低温火焰结构;多孔板阻塞比对LSC喷射器扩散湍流流动分布、中心线上轴向气流速度和湍流强度有很大影响.
In order to study the combustion mode of low swirl combustion (LSC) technology deviating from the traditional swirl combustion mechanism and its characteristics of high combustion efficiency, strong stability, low flame zone temperature and very low NOx emission, the numerical simulation method , The LSC combustion and flow characteristics as well as the influence by the ejector perforated plate blocking ratio were studied. The results show that: the LSC ejector can form typical diffusion turbulent flow and “broom” low temperature flame structure; porous plate blocking ratio of LSC Injector diffusion turbulent flow distribution, axial velocity and turbulence intensity on the center line have a great impact.