Accessories and Parts -Stirling Engine Stirling Engine Model Highlights Generic Brand Stirling Engine Stirling Engine Model Description: Physical Stirling engine heat engine external combustion engine model kit. Theory: Similar to the internal combustion engine: the burning alcohol lamp provides heat to expand the gas inside, then the internal molecular power of the gas increases and works strongly at the flywheel. With the help of flywheels, thermal energy is transformed into mechanical work. A great educational toy, an experimental teaching aid in a classroom or laboratory, cultivate child's interest in physics, more intuitive and easy to understand. Great gift for your friends or family. A Stirling engine is a heat engine that works by cyclically compressing and expanding air or another gas (the working fluid) at different temperatures, so that there will be a net conversion of heat energy to work mechanical. Specification: Material: Alloy+Glass Size Chart: Size: 200*55*105mm/7.87x2.16x4.13inch Package Include: 1 Piece Stirling Engine Model 1 Piece Alcohol Lamp 1 Piece Plastic Cans 1 Piece Manual instructions