Suppression of harmonics in a model of thermoacoustic refrigerator based on an acoustic metamaterial | Zendy

Li Fan | Zendy; Jin Ding | Zendy; Jun-jie Zhu | Zendy; Zhe Chen | Zendy; Shu-yi Zhang | Zendy; Hui Zhang | Zendy; Xiaojuan Li | Zendy

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Suppression of harmonics in a model of thermoacoustic refrigerator based on an acoustic metamaterial

Author(s) -

Li Fan,

Jin Ding,

Jun-jie Zhu,

Zhe Chen,

Shu-yi Zhang,

Hui Zhang,

Xiaojuan Li

Publication year - 2015

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4934547

Subject(s) - acoustics , refrigerator car , harmonics , resonator , harmonic , physics , thermoacoustics , metamaterial , optics , quantum mechanics , voltage , thermodynamics

A model of thermoacoustic refrigerator on the basis of an acoustic metamaterial is presented, in which an array of side pipes is adopted to suppress harmonic waves in the thermoacoustic resonator. The array of side pipes traps the acoustic waves with Fabry-Perot resonant frequencies and induces narrow forbidden bands of transmission. When the resonant frequency of the thermoacoustic refrigerator is chosen as the operating frequency, the harmonic wave can be exactly located in the forbidden band by properly adapting the structural parameters of the system. Therefore, the component of the harmonic wave in the thermoacoustic resonator can be efficiently suppressed.

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