Compressor – Adiabatic Volume Change

Hydrogen is typically compressed in piston or diaphragm compressors. Both are based on the principle of volume change: a certain amount of gas is "trapped" and then the volume is reduced through the application of mechanical energy.

To calculate the change in gas temperature that occurs during compression (or expansion), the process is treated as adiabatic ("non-heat-transferring"). In reality, some thermal energy is always dissipated through the walls and pipelines; however, this heat loss is often negligible due to the high process speed.

After entering the parameters, the following calculator can compute both the temperature of the hydrogen after compression and the power required for this process.

Hinweis: Die Berechnung erfolgt unter der Annahme einer isentropen (adiabaten und reibungsfreien) Kompression — das heißt, die Entropie des Systems bleibt dabei unverändert. Im realen Kompressor ist die Kompression aufgrund von Reibung und anderen Verlusten nicht vollständig isentrop.

Note: The calculation of the required compressor power does not account for efficiency or potential cooling.

All online tools have been programmed to the best of my knowledge; however, errors cannot be entirely excluded. Any use is therefore at your own risk. Any legal or financial claims are excluded.