Title :
Quality Factor Identification for Stacks in Resonant Thermoacoustic System
Author :
Zhang, Chunping ; Guo, FangZhong ; Zhang, Xiaoqing ; Liu, Wei ; Wu, Feng
Author_Institution :
Cryogenics Lab., HUST, Wuhan
Abstract :
In thermoacoustic systems, stacks with different matrix geometry and material coupled with different acoustic systems present different heat dynamic performances, which have influences on the efficiency of energy conversion. Then the quality factor is used to evaluate the performance of each matrix and verified experimentally in thermoacoustic system. It is showed that the pin-array matrix has the best quality factor and the lowest dissipative performance compared with other matrix.
Keywords :
Q-factor; acoustics; direct energy conversion; heat exchangers; dissipative performance; energy conversion efficiency; heat dynamic performances; matrix geometry; pin-array matrix; regenerator; resonant thermoacoustic system; stack quality factor identification; Acoustic materials; Acoustic propagation; Damping; Energy conversion; Engines; Geometry; Performance evaluation; Q factor; Resonance; Resonant frequency;
Conference_Titel :
Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2486-3
Electronic_ISBN :
978-1-4244-2487-0
DOI :
10.1109/APPEEC.2009.4918632
