Modeling and experimental analysis of a didactic prototype stirling engine

This work is the development of a prototype for Stirling engine which was designed with the aim of understanding the machine mainly about the component parts, construction difficulties and type of relevant parameters for its performance. Starting from geometric and thermodynamic data from the prototype, with application of the Schmidt modeling, a digital program was developed to calculate values such as power output and efficiency. The prototype was also used to carryd out bench tests. The experiments have shown that the prototype can reach a rotation speed up to 1.200 rpm at 159 degrees celsius of external engine heat source, with output power of 100 milliwatt. The comparison between results from simulations and the bench tests demonstrated the great influence of prototype construction data on the output power and the performance of the equipment.