Blue Mini Hot Air Stirling Engine Motor Model Educational Toys Kit with LED Light

Use the alcohol lamp to burn a test tube, and then hand-assisted turn the wheel, the machine will automatically runIt is a amazing and fantastic product at this price,it can be a great gift to your families or friends. It also can be used for teaching purpose. Many of our ustomers comes from school,colleague,etc.What is the 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 in and out through the engine wall. How it works?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 general cycle consists of compressing cool gas, heating the gas, expanding the hot gas, and finally cooling the gas before repeating the cycle. net weight: 29.42 oz shipping weight: 31oz 1 - MEDIUM BOXpacking list:1 x stirling engine1 x alcohol lamp