Prediction of critical temperature ratio in thermoacoustic oscillations

Tetsushi Biwa, Fumitomo Shima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper reports the acoustic power source for self-sustained oscillations in a typical thermoacoustic system through measurements of acoustic intensity. Results show that the stack region with a steep temperature gradient produces the acoustic power necessary to compensate for energy dissipation in the other regions of the system. Based on this observation, we propose a quality factor measurement for predicting experimentally the critical temperature ratio before the system reaches the onset of oscillation.

Original languageEnglish
Title of host publication17th International Congress on Sound and Vibration 2010, ICSV 2010
Pages2368-2372
Number of pages5
Publication statusPublished - 2010 Dec 1
Event17th International Congress on Sound and Vibration 2010, ICSV 2010 - Cairo, Egypt
Duration: 2010 Jul 182010 Jul 22

Publication series

Name17th International Congress on Sound and Vibration 2010, ICSV 2010
Volume4

Other

Other17th International Congress on Sound and Vibration 2010, ICSV 2010
CountryEgypt
CityCairo
Period10/7/1810/7/22

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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