2010•Doryoku, Enerugi Gijutsu Shinpojiumu koen ronbunshu/Doryoku, enerugi gijutsu no saizensen koen ronbunshuOpen access

E205 Design of a combined thermoacoustic Stirling engine

Hiroki Hatori, Tetsushi Biwa

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Abstract

To determine the best frequency for achieving a high efficiency in a looped tube thermoacoustic engine, we measured the acoustic intensity with forced oscillation. As a result, we found that the gain of the acoustic power amplification increased as the frequency was decreased. This indicates that we should choose an acoustic load in the way that the operating frequency becomes as low as possible when it is combined with this looped tube engine.

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Key concepts: Thermoacoustics, Stirling engine, Thermoacoustic heat engine, Acoustics, Sound power, Stirling cycle, Tube (container), Oscillation (cell signaling)