Experimental demonstration of thermoacoustic energy conversion in a resonator

Tetsushi Biwa, Yusuke Tashiro, Uichiro Mizutani, Motoki Kozuka, Taichi Yazaki

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)


Amplification and damping of acoustic intensity were demonstrated using thermoacoustic energy conversion. A differentially heated regenerator was installed near the velocity node of the resonator and thereby a high specific acoustic impedance and a traveling wave phase are obtained. The gain of acoustic intensity, resulting from the traveling wave energy conversion, reaches 1.7 in a positive temperature gradient and 0.3 in a negative gradient. The obtained results will contribute to the development of new acoustic devices using thermoacoustic power amplifiers and silencers.

Original languageEnglish
Article number066304
Pages (from-to)066304-1-066304-6
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number6 2
Publication statusPublished - 2004 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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