Abstract
Radiation is paid attention as the optimum heat input method for the thermoacoustic phenomenon since the conventional heat input method is inefficient. The thermoacoustic prime mover driven by sunlight was developed. The sunlight collected by the parabolic thermal collector was introduced to the stack directly from many directions. Four kinds of stack that are different from materials and duct shapes ware evaluated with the onset temperature, the stationary temperature and the pressure of the generated acoustic wave. In case of using radiation, thus, the stack with low flow resistance and high specific surface area is required.
