论文部分内容阅读
等离子体能够有效地改善燃料的燃烧速率,缩短点火时间,改变火焰稳定性,被认为是最高效的辅助点火方法。为了验证等离子体对含硼富燃燃气燃烧的增强特性,利用一套带透明窗的燃烧实验装置开展了多次实验研究。实验结果表明,在补燃室环境中加入等离子体可使富燃燃气点火位置靠前,燃烧火焰面变大,高温反应区前移,从而改善了硼粒子的燃烧环境;通过计算对比有/无等离子工况下的补燃室二次燃烧效率,表明加入等离子后可使得补燃室二次燃烧效率提高5%以上,且随着放电功率的增加,等离子体助燃效果也显著增加,补燃室中增加的燃烧热与等离子体放电功率比值大约在7左右。
Plasma can effectively improve the combustion rate of fuel, shorten the ignition time, change the flame stability, is considered to be the most efficient auxiliary ignition method. In order to verify the plasma enhanced combustion of boron-rich gas combustion characteristics, the use of a set of experiments with a transparent window combustion device to carry out a number of experiments. The experimental results show that adding plasma into the combustion chamber can improve the combustion environment of the boron particles by increasing the ignition temperature of the fuel-rich gas, increasing the combustion flames and moving the high-temperature reaction zone. By calculating the contrast with / without The secondary combustion efficiency of the afterburner under plasma condition shows that after the plasma is added, the secondary combustion efficiency of the afterburner can be increased by more than 5%. With the increase of the discharge power, the combustion efficiency of the plasma also increases significantly, The increase in the combustion heat and plasma discharge power ratio of about 7 or so.