It was experimentally proved for the first time that the maximum acoustic power output can be transferred to the load when the acoustic resistance of RC load equals to its acoustic capacitance impedance. 首次通过实验验证了当声阻与容抗相等时,热声发动机向阻容负载传递的声功率最大。
After acoustic power output of the thermoacoustic engine was measured accurately by variable-load method,the mutual relations of power output with pressure ratio,heating power and heating temperature were analyzed. 应用变负载法
A formula for calculating power output is derived. 同时推导出输出功率的计算公式。
A maximum acoustic power 43.1 W output to RC load of 110 cm~3 capacitance was measured with helium filling of 2.1 MPa and heating power of 2 000 W. 以氦气为工质