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为提高微型热光电系统的输出性能,设计了一种内置错列挡板的平板式微型燃烧器,并通过构建的三维计算模型,研究了其工作过程的基本特征以及挡板间距和位置等结构参数的影响。研究结果表明,直通道内部设置挡板后,得益于换热效果的增强,辐射壁面的温度值和均匀性都有一定程度的提升;在2~5 mm的挡板间距范围内,每缩小1 mm,壁面温度约能提高17 K;挡板初始设置点则对壁面高温区域的分布形态和均匀性有直接影响,在4 mm时燃烧器工作效果最佳。
In order to improve the output performance of the micro-thermo-optoelectronic system, a planar micro-combustor with built-in staggered baffle is designed. The basic characteristics of the working process and the structure of the distance and position of the baffle are studied through the three-dimensional computational model. Effect of parameters. The results show that the temperature and uniformity of the radiation wall are improved to a certain degree thanks to the enhancement of the heat transfer effect when the baffle is arranged inside the straight passage. When the baffle spacing is within the range of 2 to 5 mm, 1 mm, the wall temperature can be increased by about 17 K; the initial setting point of the baffle has a direct influence on the distribution shape and uniformity of the wall high temperature region, and the burner works best at 4 mm.