【摘要】 为保证微型热光电动力系统能稳定、高效地工作,燃烧器壁面需有较高的温度,且分布均匀．对采用多孔介质结构的微型燃烧器进行了实验研究,分析了孔隙率、CH₄/O₂混合比等因素对燃烧器性能的影响．结果表明,采用多孔介质结构可以改善燃烧器内的燃烧传热过程；合理选择孔隙率和工况参数,可以优化燃烧器壁面温度分布,提高系统工作性能．更多还原

【Abstract】 Micro thermophotovohaic （MTPV） system is a direct energy conversion device which uses PV cells to convert thermal radiation energy from combustion of fossil fuel into electricity.As the key component of the system,micro combus- tor is required to provide high and uniform temperature along its sidewall.In this article,a new type of porous media com- bustor is proposed.Experimental investigations were conducted on the characteristics of the porous media combustor. Effects of porosity,CH₄/O₂ mixing ratio,and volumetric flow rate on the combustion properties were studied.The results indicated that performance of combustor can be improved by using porous media with suited porosity and operating condi- tion.更多还原