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Title : Testing of a Three-Stage Looped-Tube Thermoacoustic Sound Generator
Author :

Ikhsan Setiawan, S.Si., M.Si. (1) Prof. Dr. Agung Bambang Setio Utomo, S.U. (2) Prof. Dr. Mitrayana, S.Si., M.Si. (3)
Date : 3 2020
Keyword : Thermoacoustic,Sound generator,three stage,looped-tube Thermoacoustic,Sound generator,three stage,looped-tube
Abstract : Thermoacoustic sound generators are devices that produce sound waves by using thermal energy. The output acoustic oscillations can be used to drive a linear alternator to generate electricity. The devices are environmentally friendly because they do not produce any exhaust gases and they can utilize waste heat to generate the sound. This paper presents an experimental testing of a three-stage thermoacoustic sound generator of a looped-tube type. Each thermoacoustic core was composed of a regenerator, a hot heat exchanger and an ambient heat exchanger. The regenerators were made of a tight stack of 30-mesh stainless-steel screens, with a length of 35 mm. The looped-tube was made of stainless-steel pipes with inner diameter of 68 mm and total length of 4.3 m. Atmospheric air was used as the working gas within the looped-tube. Three electric heaters, each with input power of around 394 W, were used as the heat sources installed at the three hot heat exchangers. It was found that the device started to generate sound when the average temperature difference between the hot and ambient sides of the regenerators reached 255 oC. After 45 minutes operation, the average temperature difference was 538 oC, producing sound waves with a maximum pressure amplitude of 2.6 kPa and acoustic power of around 4.5 W. Additionally, it was observed a sound frequency jump during operation, that was 83 Hz until the temperature difference reached 526 oC and jumped to 339 Hz after that. During transition, both frequencies existed with relatively lower pressure amplitudes.
Group of Knowledge :
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 6_Sertifikat ikhsan 2020.pdf
Document Type : [PAK] Sertifikat Seminar
[PAK] Sertifikat Seminar View
2 2_Commitee dan panitia.pdf
Document Type : [PAK] Informasi Dewan Redaksi/Editor/Steering Committee
[PAK] Informasi Dewan Redaksi/Editor/Steering Committee View
3 1_Cover.pdf
Document Type : Seminar Sampul Prosiding
Seminar Sampul Prosiding View
4 full dokument ikhsan 2020.pdf
Document Type : [PAK] Full Dokumen
[PAK] Full Dokumen View
5 3_Daftar Isi.pdf
Document Type : Daftar Isi
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6 cek turnitin_Testing of a three-stage looped-tube thermoacoustic sound generator (1).pdf
Document Type : Cek Similarity
Cek Similarity View
7 scopus-Testing of a Three-Stage Looped-Tube Thermoacoustic Sound Generator.pdf
Document Type : Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian)
Dokumen Pendukung Karya Ilmiah (Hibah, Publikasi, Penelitian, Pengabdian) View
8 Testing of a Three-Stage Looped-Tube Thermoacoustic Sound Generator.pdf
Document Type : [PAK] Full Dokumen
[PAK] Full Dokumen View