Optimizing the Technological Processes in Cogeneration Power Plants Based on Stirling Engines

Abstract

The article outlines the advantages of using Stirling engines in small-capacity cogeneration power plants: versatility of the thermodynamic cycle, high efficiency, high environmental cleanliness of working fluids and spent media, the ability to operate on almost all types of conventional fuels and alternative heat sources. The characteristic features of cogeneration power plants based on the Stirling engine are given. The specific features of modeling the thermal cycle circuit and selecting its optimal parameters are considered taking a Stirling liquid piston engine as an example. To solve the practical problem of engine optimization, an economic criterion is proposed as a totality of engine operating parameters. Simulation results are presented, which show that Stirling liquid piston engines can be a promising option as energy converters in installations with a liquid metal coolant.