高频热声斯特林发动机的实验研究  

EXPERIMENTAL INVESTIGATION ON HIGH FREQUENCY THERMOACOUSTIC-STIRLING HEAT ENGINE

作　　者：余国瑶[1] 罗二仓[1] 张晓东[1] 戴巍[1] 朱尚龙[1] 

机构地区：[1]中国科学院理化技术研究所,北京100190

出　　处：《工程热物理学报》2009年第1期17-20,共4页Journal of Engineering Thermophysics

基　　金：自然科学基金杰出青年基金项目(No.50625620);中国科学院三期方向性项目资助(No.KJCX2-YW2-W 02)

摘　　要：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。High frequency thermoacoustic-Stirling heat engine, which features in compact size, high thermal efficiency and no mechanical moving components, is a novel pressure oscillator to drive the regenerative refrigerators such as pulse tube cooler. This work designed and built a high frequency thermoacoustic-Stirling heat engine, and experimentally studied the influences of orientation and working gas on the system performance. The experiments indicate that the orientation affects the onset temperature, and makes almost no impact on the pressure amplitude and heating block temperature. With helium, nitrogen, argon and carbon dioxide as working gas respectively, the corresponding frequencies are 314 Hz, 108 Hz, 98 Hz, 76 Hz respectively, and the pressure ratios are 1.17, 1.23, 1.22 and 1.24 respectively.

关 键 词：高频 热声斯特林发动机 布置方位 工质 

分 类 号：TK123[动力工程及工程热物理—工程热物理]