Abstract
A water Stirling engine has attracted attention because it can work without any moving parts and can use variety of heat sources. This device was composed of a tube containing a regenerator; the regenerator consisted of many narrow flow channels. We built a multistage water Stirling engine and measured the oscillation temperature and the pressure amplitude. The oscillation temperature is measured to be 47℃ at 28W . The pressure amplitude is measured to be 9.1kPa at 249W.
