Abstract
Exergy efficiencies of the gas turbine become an important issue in recent years and by the way conducted studies regarding to this subject shows that the highest exergy destruction is observed in the combustor and afterburner modules. Therefore it is beneficial to perform analyses that are specific to the combustor exergy efficiency. This study includes the energy
Acknowledgements
Authors would like to thanks TUSAS Engine Industries Inc., Anadolu University in Turkey for financial, technical support and their colleagues who contributes to production, assembly and test processes of the combustor. This study was also supported by Anadolu University Scientific Research Projects Commission under the grant no: 1703F075.
Nomenclature
- AFR
Air to fuel ratio
- CO
Carbon monoxide
- CO2
Carbon dioxide
- EI
Emission Index (g/kg fuel)
- e
Specific exergy (kJ/kg)
- Ex
Exergy (kJ/kg)
- g
Gravity, m2/s
- h
Specific enthalpy (kW)
- h
Water content of the inlet air, moles of water vapor per mole of dry inlet air
- LHV
Lower heating value (kJ/kg)
- m
Mass flow rate (kg/s)
- m
Molar constant for Carbon
- n
Molar constant for Hydrogen
- Mw
Molecular weight (kg/kmol)
- NOx
Nitrogen oxide
- O2
Oxygen
- P
Pressure (kPa)
- PN
Moles of exhaust constituent “N” per mole of fuel
- R
Specific gas constant (kJ/kg K)
- S
Mole fraction of nitrogen plus mole fraction of argon in the dry inlet air
- s
Specific entropy (kJ/kg K)
- T
Temperature (K)
- T
Mole fraction of carbon dioxide in dry inlet air
- U
Mole fraction of methane in dry inlet air
- UHC
Unburned hydrocarbon
- V
Velocity, m/s
- X
Moles of dry air/mole of fuel
- x
Molar fraction
- z
Height, m
Efficiency
- Subscripts and superscripts
- 0
Ambient
- 3
Combustor inlet
- 4
Combustor outlet
- a
Air
- CH
Chemical
- in
Inlet
- KN
Kinetic
- PH
Physical
- PT
Potential
- out
Outlet
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