The quantity of the working fluid and speed required are more, so, generally, a centrifugal or an axial compressor is employed. The turbine drives the compressor and so it is coupled to the turbine shaft. If after compression the working fluid were to be expanded in a turbine, then assuming that there were no losses in either component the power developed by the turbine would be just equal to that absorbed by the compressor and the work done would be zero.
- a compressor,
- a combustion chamber and
- a turbine.
Classification of Gas Power Plant
- (a) Open cycle gas turbine.
- (b) Closed cycle gas turbine.