Eachine ET3 STEM Hot Air Four Cylinder Stirling Engine External Combustion Engine Model

Description Brand EachineItem No ET3Assembled Size 130 130 137 3mmRotational Speed 300 800 RPMNet Weight 620gGross weight 840gMaterial Engine Body Aluminum Stainless steelCylinder GlassBase AcrylicWhat s Stirling Engine A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas the working fluid at different temperature levels such that there is a net conversion of heat energy to mechanical work The engine is like a steam engine in that all of the engine s heat flows inout through the engine wall This is traditionally known as an external combustion engine in contrast to an internal combustion engine where the heat input is by combustion of a fuel within the body of the working fluid Unlike the steam engine s use of water in both its liquid and gaseous phases as the working fluid the Stirling engine encloses a fixed quantity of permanently gaseous fluid such as air or helium As in all heat engines the gen eral cycle consists of compressing cool gas heating the gas expanding the hot gas and finally cooling the gas before repeating the cycle How To Use 1 Inject fuel into each alcohol wick with a needle type plus alcohol 2 Full filled the fuel tank 3 Light the alcohol wick and heat it for 30 50 seconds Clockwise dial the gyro flywheel to start the model operation The alcohol wick can not touch the glass hot cylinder 4 Medical alcohol with 95 fuel concentration works best 5 Debugging instructions If the ope