Abstract：
:In this paper, an experimental study of the effect of the resonator shape on the performance of a traveling-wave thermoacoustic engine is presented. Two different resonators were tested in the thermoacoustic-Stirling heat. One resonator is an iso-diameter one, and the other is a tapered one. To have a reasonable comparison reference, we keep the same traveling-wave loop, the same resonant frequency and the same operating pressure. The experiment showed that the resonator shape has significant influence on the global performance of the thermoacoustic-Stirling heat engine. The tapered resonator gives much better performance than the iso-diameter resonator. The tapered resonator system achieved a maximum pressure ratio of about 1.3, a maximum net acoustical power output of about 450 W and a highest thermoacoustic efficiency of about 25%.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Luo EC,Ling H,Dai W,Yu GYdoi
10.1016/j.ultras.2006.08.008subject
Has Abstractpub_date
2006-12-22 00:00:00pages
e1507-9eissn
0041-624Xissn
1874-9968pii
S0041-624X(06)00352-0journal_volume
44 Suppl 1pub_type
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