In this chapter, an application example is studied where the energetic
efficiency of a pneumatically driven device is of importance. The chosen example
consists of an air-driven gas booster used as a Hydrogen compressor in a refuel station
for H2
driven cars. The needed force for the driving of the compression cylinders is
calculated, and a new pneumatic motor based on the principle of adding expansion
work is proposed. The new motor is designed for sufficient effort for moving the
mobile equipment under the maximum compression force.
The air consumption of the new system is calculated, and finally, the air savings in
comparison to a classical air-driven booster. The simulation is completed with a
dynamic part showing the dynamic performance in terms of velocity and time to reach
the final position of the pistons.
Keywords: Air-driven gas-booster, Design, Dynamic simulation, Energetic efficiency, Saving of air.
