3. Task
Model a Steam Injected Gas Turbine using
thermodynamic principles
Determine the affect that steam injection has on
system performance
Identify the components within the cycle that lead to
highest exergy destruction
4. Results
Increasing the steam to
air mass flow rate leads to
higher efficiencies
Practically this could be
unfeasible due to
materials constraints on
the turbine blades
Thermal Efficiency vs. Steam-Air mass flow ratio
5. Exergy is a measure
of “useful energy” –
energy available to do
work
Majority of exergy is
destroyed during the
combustion process
Significant portion of
exergy is also lost in
exhaust
Results
Exergy Destruction Trace through STIG
