This alpha-type Stirling engine was designed and manufactured on November 1996. The alpha-type engine, which locates the two power piston in a line, can expand the flow section.
The power level of the engine was decided under following reasons.
(i) Students can build the engine into their own.
(ii) The engine performance can be measured correctly.
(iii) A characteristic of the X-yoke mechanism, which is adopted the 1 kW low temperature difference Stirling engine as the crank mechanism can be clealy.
The output power is calculated about 20 W by an adiabatic method with several heat losses, under the phase angle 150 degree, the mean pressure 200 kPa, the diameter of the cylinder 200 mm and the piston stroke 80 mm.