Abstract
One can realize an acoustic heat engine, a heat engine with no or less moving parts, as an application of thermoacoustic spontaneous oscillations of a gas column. The acoustic heat engine has been so far based on natural mode of oscillation of the gas column confined in a tube. In this study, we aim at constructing an acoustic engine with a voice coil type alternator. The alternator part is considered to replace a branch resonator of the acoustic engine made of a looped tube and the branch resonator, and thereby achieves both the lower operating frequency and the shorter engine length. This paper reports the operating condition and the performance of the combined system consisting of the engine part and the alternator part.
