Abstract
In this research, our interests focused on the thermoacoustic prime mover to recover the waste heat and to utilize it effectively. The advantages of this prime mover are the flexibility for various heat sources such as external engine and a possibility as the cost effective system due to simple structure. For the practical application, various efforts have been made experimentally to grasp the optimization of stack structure which plays an importante role to energy conversion. In this paper, we install the linear alternator into the thermoacoustic engine as an energy conversion device from acoustic to electric energy.