中文摘要：

为了进一步优化微燃烧室的设计,以最大化提高微燃烧室的能量转换效率及微热光电系统的整体工作效率,在前期工作的基础上设计了不同多孔介质材料及喷嘴/燃烧室内径比的多孔介质微燃烧室。通过实验验证,针对多孔介质微燃烧室内的氢氧预混燃烧进行了数值模拟计算,研究结果表明,多孔介质材料,喷嘴/燃烧室内径比对微燃烧室内的微尺度燃烧有重要影响,微燃烧室在多孔介质材料为SiC,喷嘴/燃烧室内径比为0.27时燃烧效率最高,有利于提高微热光电系统的整体效率。

英文摘要：

In order to further optimize the design of micro-combustor to maximize the energy conversion efficiency of the micro-combustor and whole efficiency of micro thermophotovohaic system, micro-combustors with different porous media material and nozzle to combustor inner diameter ratio were designed based on the former works. Via experiment validation, hydrogen-oxygen premixed combustion in porous media micro-combustor was simulated. The research results indicated that porous media material and nozzle to combustor inner diameter ratio had distinct effects on the micro-scale combustion in micro-combustor. Micro-combustor with sic porous material and nozzle to combustor inner diameter ratio as 0.27 has comparatively higher efficiency, which is propitious to improve the whole efficiency of micro thermophotovoltaic system.