Stirling engine pack in ExAO

Stirling Engine Experiment with Data Acquisition and Analysis (ExAO): The objective of this experiment is to highlight the real Stirling cycle in order to compare it to the theoretical cycle. Pressure, volume, and temperature are automatically acquired through the Foxy® interface. Pressure is measured in real time using a pressure gauge connected to an orifice on the working piston cylinder. Volume is measured using a Hall effect sensor placed on the flywheel, and with a specifically developed Stirling PV sensor by Jeulin. The setup allows for plotting the Stirling cycle on a Clapeyron diagram (pV coordinates), enabling both qualitative and quantitative analysis of the cycle. Exclusive to Jeulin: After obtaining the Clapeyron diagram in the graphical tab of the Atelier Scientifique Supérieur software ref. 000131, it is possible, thanks to the software's integrated processing tools, to easily determine the area under the curve (integral) to obtain the value of the net work exchanged during a cycle. Temperature can also be measured directly on the cylinder at the cold and hot sources. All these measurements are done with high acquisition speed and reproducibility over time.