Abstract
Resonance pipe thermoacoustic engines was constructed and its performance was experimentally studied. Two types of stacks, laminated stainless plates and a bundle of ceramic pipes, were used in the experiment. Maximum sound pressure was obtained for a suitable length of the resonance pipe. Sound pressure was found to increase two times when the open end of the resonance pipe was changed to a bell mouth shape from a straight shape. Flow patterns of acoustic streaming at the open end of the pipe are also presented.
