Abstract
To produce a miniature thermoacoustic system, experimental investigations of the prime mover's performance characteristics were conducted using a miniaturized thermoacoustic system. A straight-type thermoacoustic system's total length was changed. Then measurements of the sound field in the system were conducted on each system. Results show that the distribution of phase difference between sound pressure and particle velocity accord when the system is miniaturized. Moreover, results confirm that the distribution of sound pressure accorded with the total length. A functioning straight-type thermoacoustic system with 130 mm total length was designed based on experimental results. Its operation shows successful conversion from heat energy to sound energy.
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