回热器功产生的临界温度梯度研究

Study on the critical onset temperature gradient of a regenerator under different parameters

热声机械作为一种能量转化装置,能够不通过运动部件将热量转变成压力波输出,实现这一功能的关键部件就是回热器。本文讨论了丝网型回热器能在纯行波状态下起振的临界温度梯度与结构参数及运行参数的关系。

A thermoacoustic engine is the machine that can convert heat into mechni-cal work in the form of oscillating pressure. This paper analyses the critical temperature gradient of a regenerator under a simplifying assumption for different structure and operating parameters.