In hydro power generation pressure may be replaced with volume.
In refrigeration Co2 cools by passing from high confined, to low expansive pressure.
Thermal increase in Co2 raises it liguid pressure to vapour pressure. expansion chamber cools to temperature and pressure liquid.
This convection current is obtainable of Co2 at any air temperature.
DaS Energy exploits the Co2 vapour pressure between heating and cooling.
9 bar pressure Co2 vapour 1 litre per second produces 720 watts.
Co2 temperature pressure chart defines volume of flow required for power output.
The technology is on the table.
It has one moving part.
It has everything from piston engines, to Steam turbines working against it.
Enough nerds must read this to take up the revolution in technology.