高频热声斯特林发动机具有体积小,热效率高和无机械运动部件等特点,是驱动脉冲管制冷机等回热式制冷机的理想的压力波发生器.本文设计并研制了一高频热声斯特林发动机系统,实验研究了系统布置方位和工作介质对发动机性能的影响.实验结果发现布置方位对起振温度的影响较大,对稳定振荡的波动压力振幅和加热温度影响较小.采用氦气、氮气、氩气和二氧化碳作为工质,工作频率分别是314 Hz、108 Hz、98 Hz和76 Hz时,其压比分别达到了1.17、1.23、1.22和1.24.
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