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对热声热机驱动耗散性负载的性能进行了实验研究和分析 ,对热声热机系统起振温度和谐振频率进行了测量和标定。得出导致热声发动机工作在二阶谐振频率模态下的影响因素。测量和分析了气体充气压力、频率以及谐振管长度对系统整个性能的影响 ,获得了最大为 31W的声能输出。并利用热声发动机产生的声能驱动制冷机 ,产生了 2 5°C的温差。
The performance of the thermoacoustic heat engine driven dissipative load was experimentally studied and analyzed. The starting temperature and resonant frequency of the thermoacoustic heat engine were measured and calibrated. The factors that lead to the thermoacoustic engine operating under the second-order resonant frequency mode are obtained. The influence of gas inflation pressure, frequency and resonant tube length on the overall performance of the system was measured and analyzed. The maximum acoustic output of 31W was obtained. And use the sound energy generated by the thermoacoustic engine to drive the refrigerator, resulting in a temperature difference of 25 ° C.