Gas turbines can be classified on the basis of thermodynamic cycles used and the path of working fluid. On the basis of thermodynamic cycle, there are two types of gas turbines:
- Constant pressure cycle, i.e., Joule or Brayton cycle—heat addition and rejection are done at constant pressure.
- Atkinson cycle—heat addition at constant volume and rejection at constant pressure.
On the basis of path of the working fluid, gas turbine can be classified as
- Open cycle gas turbine—working fluid enters from atmosphere and exhausts to atmosphere. It works similar to I.C. engine.
- Closed cycle gas turbine—working fluid is confined within the plant and recirculated. The working is very similar to external combustion engines.
Leave a Reply