When we put the first prototypes of the motors using the alphgamma® process into operation at the beginning of 2018, we knew after a short time that we were on the right path.
The difference between the standard alpha Stirling motors and the new alphagamma® technology can be illustrated graphically as follows:
This schematic representation shows the structure of a Stirling-alpha principle, as can be found in many publications and numerous design implementations.
A stepped piston is used in the alphagamma® process, which divides the compression volume between two cylinder chambers.
Read more about the thermodynamic analysis, in which we show comparisons with the Standard Alpha, “optimized” Alpha and alphagamma® processes.
Dr. Michael Gschwendtner of Auckland University of Technology (AUT) has been dealing with thermodynamic calculation methods, particularly in the area of Stirling technology, for many years.
We have asked Prof. Dr.-Ing. Bernd Thomas of Reutlingen University to analyse the alphagamma® technology and write an expert opinion.
Prof. Thomas has been working with thermodynamic machines, in particular with Stirling engines and refrigeration machines, for over 30 years.