中文摘要：

为优化燃烧室的设计，提高微热光电系统的整体效率和工作性能，建立了颗粒填充型多孔介质燃烧室．通过试验验证，应用Fluent软件对多孔介质结构的微燃烧室进行数值模拟，分析孔隙率、氢氧体积混合比和流量比等因素对燃烧室性能的影响．模拟结果表明，采用多孔介质结构可以改善燃烧室的燃烧性能，燃烧室在多孔介质孔隙率为0．52，氢氧体积混合比为2：1，入口流量为200mL/min时燃烧效率较高，有利于微热光电系统稳定高效地工作．

英文摘要：

To optimize the combustor＇s design and improve the efficiency and performance of the micro-thermophotovoltaic system, the particle-filled micro-porous media combustor was established. Via the experimental validation, the porous media combustor was simulated by using fluent software. Effects of porosity, H2/O2 mixing ratio, and volumetric flow rate on the combustor＇s performance were studied. The results indicate that performance of the combustor can be improved by using porous media structure. The combustor has comparatively high efficiency when the porosity is 0.52, H2/O2mixing ratio is 2： 1, and volumetric flow rate is 200 mL/min, which is favourable to the stable and efficient prerformance of the micro-thermophotovoltaic systems.