Simulation of conditions for achieving high electrical power and efficiency in a stirling engine with a free working piston

Abstract

A simulation of the Stirling engine was carried out, where the temperature variability in the cooler and heater is taken into account, and the engine itself generates electric current. The study was carried out in the temperature range when the piston and displacer move synchronously. The possibility of increasing engine power by reducing hydraulic resistance in the regenerator is shown. It was also discovered that as the electrical load on the generator increases, the work produced by the engine can also increase. This indicates that there is a maximum of electrical energy production depending on the load. The increased rigidity of the displacer spring contributes to an increase in engine power and its efficiency.