Schematic animated model of the Hot Air Stirling Motor GT 02

In this schematic animation of the GT02, the circuitous process of the Stirling Motor can be fully appreciated. The solar motor function of the GT02 is especially interesting with its operation in direct sunlight. When the GT02 is used as a solar motor, it reverses its direction of rotation.

 

Animated model of the Hot Air Motor


Isothermal Compression
The displacing piston remains at its lower resting position and hinders contact with the warm cylinder wall, while the working piston compresses the gas.

Isochoric Heating
The working piston remains at its lower resting position and the displacing piston is forced upwards, whereby it shifts the gas from the cold temperature reservoir to the underlying warm temperature reservoir.

Isothermal Expansion
While the displacing piston remains at its upper resting position, the gas expands in the warmer underside and the working piston moves upwards.

Isochoric Cooling
The displacing piston moves down, while the working piston is at its upper resting position. The gas is forced upwards and comes in contact with the colder upper side of the aperture, whereupon it cools and shrinks.