曾 超,黄 琪,薛 令,陈建锌

Power MEMS的研发是当今微动力能源系统进一步发展的关键之一。本文为了测试准气体动力循环微型发动机的性能，采用H2/O2混合气的燃烧进行研究，然后通过改变点火位置和H2/O2当量比分别分析了燃烧所能达到的最大压力和输出扭矩。结果表明在微尺度密闭空间的绝热燃烧条件下，氢气燃烧的火焰传播速度可达3m/s，混合气的反应最快在3ms内完成，点火位置对最大压力的影响很小。而在当量比为0.6~1.4的范围内，燃烧所获得的最大的压力呈现出先增大后减小的趋势，在当量比为1时达到峰值，此时的燃烧最大压力可达6.4MPa，输出扭矩可达0.668N·M。

Power MEMS；准气体动力循环；燃烧最大压力；输出扭矩

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