Identification of complex compliance for regenerator in thermoacoustic resonator system |
| |
Authors: | Chun-ping Zhang Wei Liu Feng Wu Fang-zhong Guo and Xiao-qing Zhang |
| |
Affiliation: | (1) School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China;(2) School of Science, Wuhan Institute of Technology, Wuhan, 430073, China |
| |
Abstract: | In thermoacoustic system, the characteristic of complex compliance of a regenerator has a great influence on energy stored
and dissipation of the whole engine. In order to investigate the performance of regenerators with different matrix geometries
and materials coupled with different acoustic systems, an experimental measurement and analysis method was presented. By measuring
the resonant frequency, the complex compliance and quality factor of five kinds of matrix were experimentally analyzed respectively
in the system of loudspeaker-driven thermoacoustic resonator (TAR) with different lengths. The experimental results show that
the real part of complex compliance of the regenerator with pin-array has a maximum value among the measured matrixes and
its quality factor is the largest (28.222) with the least dissipation factor of 0.035 4. So the pin-array matrix is testified
to behave more excellently on the energy conversion than other matrixes. Compared with other factors the complex compliance
of a regenerator contributes more to the performance of a thermoacoustic system.
Foundation item: Projects(50676068, 50576024) supported by the National Natural Science Foundation of China |
| |
Keywords: | thermoacoustic regenerator resonant frequency complex compliance quality factor |
本文献已被 维普 万方数据 SpringerLink 等数据库收录! |
|