Study on a thermoacoustic-stirling electrical generator

In this work, a thermoacoustic-Stirling electrical generator (TASEG) was designed, analyzed and tested. First, e TASEG experimental setup was constructed. Then, a numerical analysis on the linear alternator was made. From the numerical simulation, it was found that the working frequency and electrical load, which are two factors to determine mechanical and electrical resonant state of the LA, significantly affect the LA to achieve maximum efficiency and output electrical power. Moreover, the whole experimental system was modeled and analyzed based on thermoacoustic theory. In the preliminary experiments, different operating parameters including heating power, heat temperature, and electrical load on the global performance were tested. At the most powerful point, the prototype TASEG can deliver more than 100W of electrical power under the operating condition of 2.5MPa mean pressure and 64Hz resonant frequency.