modelGTCombustionChamber

Gas turbine combustion chamber

Extends from ThermoSysPro.Fluid.Interfaces.PropertyInterfaces.FlueGasesFluidTypeParameterInterface (Interface to display the flue gases fluid type after parametrization), ThermoSysPro.Fluid.Interfaces.IconColors (Colors of the static, singular and dynamic model icons).

Information

## Copyright © EDF 2002 - 2026   
## ThermoSysPro Version 4.2   
This component model is documented in Sect. 8.1 of the ThermoSysPro book.

Parameters

Type	Name	Default	Description
Real	kcham	1	Pressure loss coefficient in the combustion chamber
Units.SI.Area	Acham	1	Average cross-sectional area of the combustion chamber
Real	eta_comb	1	Combustion efficiency
Units.SI.Power	Wpth	1e6	Thermal loss fraction in the body of the combustion chamber
Boolean	air_atomisation	false	true: computation with air atomisation - false: computation without air atomisation
Units.SI.Temperature	Tecpat	293	Temperature at the inlet of the atomisation compressor
Real	kat	0	Atomisation pressure loss coefficient
Real	XQat	0	Atomisation air mass flow rate coefficient
Real	Xspat	0	Atomisation over-pressure coefficient
Real	eta_is	1	Atomisation compressor isentropic efficiency
Boolean	diffusion	false	true: energy balance equation with diffusion - false: energy balance equation without diffusion
Fluid › Fluid properties
FlueGasesFluidType	fgftype (from FlueGasesFluidTypeParameterInterface)	FlueGasesFluidType.FlueGases	Flue gases fluid type

Connectors

Type	Name	Description
ThermoSysPro.Fluid.Interfaces.Connectors.FuelInlet	Cfuel	Fuel inlet
ThermoSysPro.Fluid.Interfaces.Connectors.FluidInlet	Ca	Air inlet
ThermoSysPro.Fluid.Interfaces.Connectors.FluidOutlet	Cfg	Flue gases outlet
ThermoSysPro.Fluid.Interfaces.Connectors.FluidInlet	Cws	Water/steam inlet

Components

Type	Name	Default	Description
Units.SI.MassFlowRate	Qea		Air mass flow rate
Units.SI.AbsolutePressure	Pea		Air pressure at the inlet
Units.SI.Temperature	Tea		Air temperature at the inlet
Units.SI.SpecificEnthalpy	Hea		Air specific enthalpy at the inlet
Real	XeaCO2		CO2 mass fraction at the air inlet
Real	XeaH2O		H2O mass fraction at the air inlet
Real	XeaO2		O2 mass fraction at the air inlet
Real	XeaSO2		SO2 mass fraction at the air inlet
Units.SI.MassFlowRate	Qfuel		Fuel mass flow rate
Units.SI.Temperature	Tfuel		Fuel temperature
Units.SI.SpecificEnthalpy	Hfuel		Fuel specific enthalpy
Real	XCfuel		C mass fraction in the fuel
Real	XHfuel		H mass fraction in the fuel
Real	XOfuel		O mass fraction in the fuel
Real	XSfuel		S mass fraction in the fuel
Units.SI.SpecificEnergy	LHVfuel		Fuel lower heating value
Units.SI.SpecificHeatCapacity	Cpfuel		Fuel specific heat capacity
Units.SI.MassFlowRate	Qews		Water/steam mass flow rate
Units.SI.SpecificEnthalpy	Hews		Water/steam specific enthalpy at the inlet
Units.SI.MassFlowRate	Qsf		Flue gases mass flow rate
Units.SI.AbsolutePressure	Psf		Flue gases pressure at the outlet
Units.SI.Temperature	Tsf		Flue gases temperature at the outlet
Units.SI.SpecificEnthalpy	Hsf		Flue gases specific enthalpy at the outlet
Real	XsfCO2		CO2 mass fraction in the flue gases
Real	XsfH2O		H2O mass fraction in the flue gases
Real	XsfO2		O2 mass fraction in the flue gases
Real	XsfSO2		SO2 mass fraction in the flue gases
Units.SI.Power	Wfuel		LHV power available in the fuel
Real	exc		Combustion air ratio
ThermoSysPro.Units.SI.PressureDifference	deltaPccb		Pressure loss in the combusiton chamber
Units.SI.SpecificEnthalpy	Hrair		Air reference specific enthalpy
Units.SI.SpecificEnthalpy	Hrws		Water/steam reference specific enthalpy
Units.SI.SpecificEnthalpy	Hrfuel		Fuel reference specific enthalpy
Units.SI.SpecificEnthalpy	Hrfg		Flue gases reference specific enthalpy
Units.SI.SpecificEnthalpy	Hecpat		Air specific enthalpy at the inlet of the atomisaiton compressor
Units.SI.SpecificEnthalpy	Hiscpat		Air specific enthalpy after isentropic expansion at the outlet of the atomisaiotn compressor
Units.SI.AbsolutePressure	Pecpat		Pressure at the inlet of the atomisation compressor
Units.SI.AbsolutePressure	Pscpat		Pressure at the outlet of the atomisation compressor
Units.SI.SpecificEntropy	Secpat		Entropy at the inlet of the atomisation compressor
Units.SI.MassFlowRate	Qm		Average mass flow rate in the combustion chamber
Real	Vea		Air volume mass (m3/kg)
Real	Vsf		Flue gases volume mass (m3/kg)
Units.SI.Density	rhoea		Air density at the inlet
Units.SI.Density	rhosf		Flue gases density at the outlet
Real	Vccbm		Average volume mass in the combustion chamber
Units.SI.Velocity	v		Flue gases reference velocity in the combusiton chamber
Units.SI.Power	Wcpat		Power of the atomisation compressor
Units.SI.Power	Wrfat		Thermal power extracted by the atomisaiton refrigerant
Real	eta_isc		Intermediate variable for the computation of the isentropic efficiency of the atomisaiton compressor
Units.SI.Area	Achamc		Intermediate variable for the computation of the average corss-section aera of the combusion chamber
Real	XeaO2c		Intermediate variable for the computation of the O2 mass fraction
Units.SI.SpecificEnthalpy	h		Fluid specific enthalpy
FluidType[3]	fluids		Fluids mixing in volume
Units.SI.Power	Ja		Thermal power diffusion from inlet Ca
Units.SI.Power	Jws		Thermal power diffusion from inlet Cws
Units.SI.Power	Jfg		Thermal power diffusion from outlet Cfg
Units.SI.Power	J		Total thermal power diffusion
Units.SI.MassFlowRate	gamma_a		Diffusion conductance for inlet Ca
Units.SI.MassFlowRate	gamma_ws		Diffusion conductance for inlet Cws
Units.SI.MassFlowRate	gamma_fg		Diffusion conductance for outlet Cfg
Real	ra		Value of r(Q/gamma) for inlet Ca
Real	rws		Value of r(Q/gamma) for inlet Cws
Real	rfg		Value of r(Q/gamma) for outlet Cfg
FluidType	ftype_ws		Water/steam fluid type
Integer	fluid_ws	Integer(ftype_ws)	Water/steam fluid number

Revisions

Author  

Baligh El Hefni