Turbines and Compressors: Summary
Key points from this module:
- Turbines and compressors are usually assumed to be adiabatic.
- An irreversible turbine generates less work than a reversible turbine at the same inlet conditions and the same outlet pressure.
- An irreversible compressor requires more work than a reversible compressor at the same inlet conditions and the same outlet pressure.
- For an ideal gas feed, an irreversible turbine (or compressor) generates the same work as a reversible turbine (or compressor) at the same inlet conditions and the same outlet temperature.
From studying this module, you should now be able to:
- Distinguish between thermal efficiency and efficiencies of a compressor, or turbine that is due to irreversibilities.
- Apply efficiencies to calculate work for irreversible compressors and turbines.
- Calculate outlet temperatures for compressors and turbines.
Prepared by John L. Falconer, Department of Chemical and Biological Engineering, University of Colorado Boulder