DESIGN ANALYSIS OF FLUIDIZED BED-FIRED STIRLING ENGINE FOR SUSTAINABLE POWER GENERATION AND ENVIRONMENTAL MANAGEMENT

This paper offers a viable renewable energy option to reduce the environmental effects of traditional power generation by presenting an analytical design for capturing waste energy through the combination of a fluidized bed combustion (FBC) system with a Stirling engine. The Stirling engine was built with a displacer cylinder volume of 0.00442 m³, a power piston volume of 0.000884 m³, a power piston diameter of 0.116 m, and a stroke length of 0.1032 m. Performance data show that the system achieves a thermal efficiency of 59.2%, which is a substantial realization in comparison to the ideal theoretical efficiency of 91.3%. The system converts 258.2 W of waste combustion heat input into a maximum mechanical power output of 113.75W. In addition, the system produced 96.69 W of electricity with an 85% generator efficiency. This integrated system shows a significant increase in environmental health by efficiently converting thermal waste into usable energy. While encouraging effective energy generation from waste streams, the fluidized bed-fired Stirling engine offers a workable, sustainable way to lessen environmental contamination.