Abstract
A looped tube type heat-driven thermoacoustic cooler has no moving parts, only a pair of regenerators sandwiched between heat exchanger. One regenerator amplifies the acoustic power and the amplified wave is supplied to the other regenerator as the diving energy to pump heat. Because it uses extremely simple hardware consisting of a few parts, the cooling device is potentially a powerful tool for application such as conventional cooling system. A looped tube type heat-driven thermoacoustic cooler having feedback path tube would achieve higher efficiency than the cooler no having feedback path tube. In this study, by using thermoacoustic theory, we design the looped tube type heat-driven thermoacoustic cooler having diverged tube that can be driven with highly efficiency.
