开式循环热声原理研究

稳定的开发流与热声循环的振荡流进行叠加，使开环流既是过程介质又是工作介质直接参与热声循环，从而构成开式热声系统，它具有与传统热声系统不同的热声作用机理。在开发式循环热声系统中，热声板叠中的温度分布和热流分布均发生有意义的改变。开式的循环声系统具有结构简单可靠、成本低和热效率高等特点，因而具有十分广阔的热声研究与应用前景。本文主要介绍了开式循环热声系统的工作机理和其网络模型。

THEORETICAL RESEARCH ON OPEN CYCLE THERMOACOUSTICS

Superposing the steady flow on the thermoacoustic oscillating flow can make open cyclic thermoacoustic syste m, in which the working fluid of thermoacoustic system is also open steady process fluid, and shows different thermoacoustic effects from conventional thermoacoustic system through changing in the distribution of temperature and heat flux in the stack. Open cycle thermoacoustic syste m promises to be simpler in construction, more reliable and efficient than conventional one, thus leads to promising research results and application. In this paper the working principle and network model for open cycle thermoacoustic system are mainly described.