A passive network model for large diameter thermoacoustic tube systems and its experimental verification

Wang, B.; Qiu, Li; Sun, Da; Bai, Kunlun; Steiner, T.

doi:10.1016/j.apacoust.2010.06.002

Cited by 5 publications

(4 citation statements)

References 24 publications

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“…From equation (14), it may be seen that thermo-acoustic oscillation is a time periodic nonlinear oscillation, which corresponds to a limit cycle in the phase space. The nonlinear disturbance induces a harmonic with double fundamental frequency in the system, whose amplitude is less than that of the fundamental frequency wave.…”

Section: Governing Equationsmentioning

confidence: 99%

“…T T e P e P P e u e u u (14) Equation (13) or (14) is the time periodic solution of a thermo-acoustic system. From equation (14), it may be seen that thermo-acoustic oscillation is a time periodic nonlinear oscillation, which corresponds to a limit cycle in the phase space.…”

Section: Governing Equationsmentioning

confidence: 99%

“…The potential application of thermo-acoustic engine has driven theoretical and experimental developments. Theories such as the network modeling [14][15], the parametric resonance [16], and the finite time thermodynamics [17] have greatly furthered the understanding about thermo-acoustic system.…”

Section: Introductionmentioning

confidence: 99%

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Time Periodic Solution of Thermo-Acoustic System

Shu

Chen

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

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It is well known that some nonlinear phenomena in thermo-acoustic system can't be explained by using linear thermo-acoustic theory. The purpose of this paper is to obtain the nonlinear solution of the thermo-acoustic system. The nonlinear time periodic solution of a thermo-acoustic system was found by using Gaierkin' low spectrum mode and solving the ordinary differential equations, in this paper. A technique called phase space analysis was employed to depict the evolutionary characteristics of a thermo-acoustic system in phase plane, and the phase space analysis method is a powerful tool in the investigation of open systems. These phase diagrams of the pressure signals and the temperature signals were plotted in phase planes by means of reconstructing pressure and temperature trails. The results show that the stable solution for a thermo-acoustic system is a stable nonlinear periodic oscillation with a limit cycle. The results obtained herein may be useful for understanding the mechanism of thermo-acoustic effect.

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Section: Governing Equationsmentioning

confidence: 99%

Section: Governing Equationsmentioning

confidence: 99%

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Time Periodic Solution of Thermo-Acoustic System

Shu

Chen

et al. 2012

2012 Asia-Pacific Power and Energy Engineering Conference

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“…The theories which have been applied for thermoacoustic systems are (a) oscillating flow theory [24], (b) fluid network theory [25,26] and (c) low amplitude linear thermoacoustic theory [22]. The numerical studies of thermoacoustic systems are largely based on the works of Rott, Greg Swift and Steven Garrett.…”

mentioning

confidence: 99%

Simulation studies on the performance of thermoacoustic prime movers and refrigerator

Skaria¹,

Rasheed²,

Shafi³

et al. 2015

Computers & Fluids

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Infrared imaging as a means of visually characterizing the thermoacoustic onset process influenced by a Helmholtz resonator

et al. 2012

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Helmholtz resonator can be used as a transmission part to connect the thermoacosutic engine (TE) with its load. However, the resonator may significantly influence the performance of the TE. In order to investigate the impact of Helmholtz resonator on the onset process of a TE, infrared (IR) imaging is firstly used as a visualization method to characterize the onset mechanism. Influence of dimensions of Helmholtz resonator on onset process is analyzed experimentally and theoretically. Results show that Helmholtz resonator reduces the pressure amplitude at onset moment and increases the onset temperature of the TE, which both depend on the acoustic power absorbed from the TE. Onset without sudden increase of pressure amplitude is observed with Helmholtz resonator at resonance length. The paper shows that IR imaging is an effective way to characterize the temperature distribution in TE study.

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A passive network model for large diameter thermoacoustic tube systems and its experimental verification

Cited by 5 publications

References 24 publications

Time Periodic Solution of Thermo-Acoustic System

Time Periodic Solution of Thermo-Acoustic System

Simulation studies on the performance of thermoacoustic prime movers and refrigerator

Infrared imaging as a means of visually characterizing the thermoacoustic onset process influenced by a Helmholtz resonator

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