Prediction of critical temperature ratio in thermoacoustic oscillations

Tetsushi Biwa; Fumitomo Shima

Prediction of critical temperature ratio in thermoacoustic oscillations

ENG - Mechanical Systems Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	17th International Congress on Sound and Vibration 2010, ICSV 2010
Pages	2368-2372
Number of pages	5
Publication status	Published - 2010 Dec 1
Event	17th International Congress on Sound and Vibration 2010, ICSV 2010 - Cairo, Egypt Duration: 2010 Jul 18 → 2010 Jul 22

Publication series

Name	17th International Congress on Sound and Vibration 2010, ICSV 2010
Volume	4

Other

Other	17th International Congress on Sound and Vibration 2010, ICSV 2010
Country	Egypt
City	Cairo
Period	10/7/18 → 10/7/22

ASJC Scopus subject areas

Acoustics and Ultrasonics

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title = "Prediction of critical temperature ratio in thermoacoustic oscillations",

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.",

author = "Tetsushi Biwa and Fumitomo Shima",

year = "2010",

month = dec,

day = "1",

language = "English",

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note = "17th International Congress on Sound and Vibration 2010, ICSV 2010 ; Conference date: 18-07-2010 Through 22-07-2010",

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T1 - Prediction of critical temperature ratio in thermoacoustic oscillations

AU - Biwa, Tetsushi

AU - Shima, Fumitomo

PY - 2010/12/1

Y1 - 2010/12/1

N2 - 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.

AB - 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.

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M3 - Conference contribution

AN - SCOPUS:84871405334

SN - 9781617822551

T3 - 17th International Congress on Sound and Vibration 2010, ICSV 2010

SP - 2368

EP - 2372

BT - 17th International Congress on Sound and Vibration 2010, ICSV 2010

T2 - 17th International Congress on Sound and Vibration 2010, ICSV 2010

Y2 - 18 July 2010 through 22 July 2010

ER -