In aircraft design and engineering, “final enthalpy” refers to the enthalpy of a fluid (such as air) after a specific process or change, such as compression, heating, or expansion. Enthalpy is a thermodynamic property that combines the internal energy of the fluid with the product of its pressure and volume.
The formula for calculating the final enthalpy (H_final) can be defined as:
- H_final is the final enthalpy, typically measured in joules per kilogram (J/kg) or other energy per unit mass units.
- Internal Energy represents the internal energy of the fluid, typically measured in joules per kilogram (J/kg).
- Pressure is the pressure of the fluid after the process, typically measured in pascals (Pa) or any appropriate pressure unit.
- Specific Volume is the volume per unit mass of the fluid after the process, typically measured in cubic meters per kilogram (m³/kg) or other volume per unit mass units.