Project Objectives & Results

I individually designed and fabricated a fully functioning Gamma-type Stirling engine, which operates converting heat energy into mechanical work. This technical-oriented project introduced me to important aspects of engineering design including tolerances, engineering drawings, and various manufacturing methods and tradeoffs. The process began with engine design ideation. I created detailed sketches and CAD renderings of multiple ideas. I decided to replicate my grandfather's pistol that he used when he served - with the barrel as the flywheel. After deciding on the theme, I modeled the engine on SolidWorks and created a functional virtual assembly to ensure engine feasibility. This process helped me to visually understand the mechanisms of the engine and how the components interface before fabrication and assembly. Throughout the semester, I learned how to machine aluminum, brass, and steel using the manual mill, CNC mill, lathe, and bandsaw. My engine ultimately ran at a speed of 1077 rpm during testing.