This research project explores the feasibility of generating power from waste heat, by use of Stirling engines (SE). The particular area of interest is waste geothermal heat. The purpose of this project is to explore the applicability and peculiarities of alpha engines at low heat source temperature levels of 100 to 200°C. A parameter study of an alpha engine has been carried out using the commercial Stirling software Sage. The obtained results reveal some interesting insights into the peculiarities of low-temperature alpha-SEs. A method for optimising the system design-parameters for a SE is being developed.
* See our preliminary work at THE XVth INTERNATIONAL STIRLING ENGINE CONFERENCE AND EXHIBITION (ISEC 2012)