Abstract:

The study of an annular thermoacoustic prime mover has been presented at a previous meeting [Lin et al., J. Acoust. Soc. Am. 100, 2846(A) (1996)]. The prime mover described there was unable to reach onset. As a result of improved analysis, the design has been simplified. The resonance frequencies and quality factor of the new prime mover were measured as functions of the temperature difference imposed across the stack. The experimental work is presented and a numerical model based on an iterative method is proposed. [Work is supported by the Office of Naval Research and the American Society of Engineering Education.]