modelGridFurnace

Combustion furnace

Information

## Copyright © EDF 2002 - 2026  
## ThermoSysPro Version 4.2

Parameters

Type	Name	Default	Description
Real	X2eap	0.1	Primary air fraction in zone 2
Real	X3eap	0.1	Primary air fraction in zone 3
Real	XCleom	0	Cl mass fraction in the biomass
Real	XFeom	0	F mass fraction in the biomass
Real	XMACHeom	0	machefers mass fraction in the biomass
Units.SI.Density	rhoCENDom	0.5	Density of the ashes in the biomass
Units.SI.Temperature	Tfrecirc	600	Temperature of the recirculated flue gases
Real	XfCO2recirc	0.3	CO2 mass fraction in the recirculated flue gases
Real	XfH2Orecirc	0.1	H2O mass fraction in the recirculated flue gases
Real	XfO2recirc	0.2	O2 mass fraction in the recirculated flue gases
Real	XfSO2recirc	0	SO2 mass fraction in the recirculated flue gases
Real	Xrecirc	0.1	Recirculated flue gases fraction in Qsf
Units.SI.SpecificHeatCapacity	CpMACH	500	Clinker average specific heat capacity
Units.SI.SpecificHeatCapacity	CpMACHs2	500	Clinker specific heat capacity at the outlet of zone 2
Units.SI.SpecificHeatCapacity	CpMACHs3	500	Clinker specific heat capacity at the outlet of zone 3
Units.SI.SpecificHeatCapacity	CpMACHs4	500	Clinker specific heat capacity at the outlet of zone 4
Units.SI.Temperature	TsjeMACH	293	Clinker temperature at the outlet of the water seal
Units.SI.Temperature	Teeje	293	Water temperature at the outlet of the water seal
Real	XsjeH2OMACH	0.2	Clinker humidity at the outlet of the water seal
Real	rendje	1	Water seal efficiency
Integer	jointeau	0	1: with water seal - 0: without water seal
Real	XCvol	0	Volatile carbon fraction
Real	XCimb	0	Unburnt carbon fraction
Units.SI.Temperature	T1sfm	500	Flue gases temperature at the outlet of zone 1
Real	Eray2	0.1	Energy fraction radiated towards zone 2 of the furnace
Real	Eray5	0.1	Energy fraction radiated towards zone 5 of the furnac
Real	perte	0	Loss percent of LHV
Units.SI.SpecificHeatCapacity	Cp3CO	500	CO specific heat capacity in zone 3
Units.SI.SpecificHeatCapacity	Cp3g	1100	Average flue gases specific heat capacity at T3g
Units.SI.SpecificEnthalpy	Hvapo	2501600	Vaporisation energy

Connectors

Type	Name	Description
ThermoSysPro.FlueGases.Connectors.FlueGasesInlet	Ca2
ThermoSysPro.Combustion.Connectors.FuelInlet	Com
ThermoSysPro.WaterSteam.Connectors.FluidInlet	port_eau_refroid
ThermoSysPro.FlueGases.Connectors.FlueGasesInlet	Ca1
ThermoSysPro.FlueGases.Connectors.FlueGasesOutlet	Cfg	Flue gases outlet

Components

Type	Name	Default	Description
Units.SI.MassFlowRate	Qsf		Flue gases mass flow rate at the outlet
Units.SI.AbsolutePressure	Psf		Flue gases pressure at the outlet
Units.SI.Temperature	Tsf		Flue gases temperature at the outlet
Real	XsfN2		Flue gases N2 mass fraction at the outlet
Real	XsfCO2		Flue gases CO2 mass fraction at the outlet
Real	XsfH2O		Flue gases H2O mass fraction at the outlet
Real	XsfO2		Flue gases O2 mass fraction at the outlet
Real	XsfSO2		Flue gases SO2 mass fraction at the outlet
Units.SI.MassFlowRate	Qeap		Primary air mass flow rate
Units.SI.AbsolutePressure	Peap		Primary air pressure
Units.SI.Temperature	Teap		Primary air temperature
Real	XeapN2		Primary air N2 mass fraction
Real	XeapCO2		Primary air CO2 mass fraction
Real	XeapH2O		Primary air H2O mass fraction
Real	XeapO2		Primary air O2 mass fraction
Real	XeapSO2		Primary air SO2 mass fraction
Units.SI.MassFlowRate	Qeas		Secondary air mass flow rate
Units.SI.AbsolutePressure	Peas		Secondary air pressure
Units.SI.Temperature	Teas		Secondary air temperature
Real	XeasN2		Secondary air N2 mass fraction
Real	XeasCO2		Secondary air CO2 mass fraction
Real	XeasH2O		Secondary air H2O mass fraction
Real	XeasO2		Secondaryr O2 mass fraction
Real	XeasSO2		Secondary SO2 mass fraction
Units.SI.MassFlowRate	Qeom		Biomass mass flow rate
Units.SI.Temperature	Teom		Biomass temperature
Real	PCIom		Biomass LHV (J/kg)
Real	XCeom		Biomass C mass fraction
Real	XHeom		Biomass H mass fraction
Real	XOeom		Biomass O mass fraction
Real	XNeom		Biomass N mass fraction
Real	XSeom		Biomass S mass fraction
Real	XCENDeom		Biomass ashes mass fraction
Real	XH2Oeom		Biomass humidity
Units.SI.SpecificHeatCapacity	Cpom		Biomass specific heat capacity
Units.SI.MassFlowRate	Qerefo		Cooling water mass flow rate
Units.SI.SpecificEnthalpy	Herefo		Cooling water specific enthalpy
Units.SI.MassFlowRate	Qfrecirc		Recirculated flue gases mass flow rate
Real	XsfN2recirc		Recirculated flue gases N2 mass fraction
Real	PCIMACH		Clinker LHV
Units.SI.MassFlowRate	QsMACH		Clinker mass flow rate
Units.SI.Temperature	TsMACH		Clinket temperature
Real	FVN		Volatile ashes mass fraction
Units.SI.Density	rhocend		Ashes density in the flue gases
Units.SI.Power	Wsr		Radiated power
Real	excair		Combustion excess air
Real	X1eap		Primary air fraction in zone 1
Units.SI.MassFlowRate	Q1eap		Primary mass flow rate in zone 1
Units.SI.MassFlowRate	Q2eap		Primary mass flow rate in zone 2
Units.SI.MassFlowRate	Q3eap		Primary mass flow rate in zone 3
Real	XCvol2		C mass fraction burnt in zone 2
Real	XMACHimb		C mass raction unburnt in the clinker
Real	XCvol3		C mass fraction burnt in zone 3
Units.SI.SpecificEnthalpy	Heap		Humid air specific enthalpy at the primary air temperature
Units.SI.SpecificEnthalpy	Heas		Humid air specific enthalpy at the secondary air temperature
Units.SI.SpecificEnthalpy	H1a		Primary air specific enthalpy at T1sfm
Units.SI.SpecificEnthalpy	Hefrecirc		Specific enthalpy of the incoming recirculated flue gases
Units.SI.MassFlowRate	Qeasm		Mass flow rate of the secondary air / recirculated flue gases mixture
Units.SI.SpecificEnthalpy	Heasm		Specific enthalpy of the secondary air / recirculated flue gases mixture
Units.SI.Temperature	Teasm		Temperature of the secondary air / recirculated flue gases mixture
Real	XeasmO2		O2 mass fraction in the secondary air / recirculated flue gases mixture
Real	XeasmCO2		CO2 mass fraction in the secondary air / recirculated flue gases mixture
Real	XeasmH2O		H2O mass fraction in the secondary air / recirculated flue gases mixture
Real	XeasmSO2		SO2 mass fraction in the secondary air / recirculated flue gases mixture
Real	XeasmN2		N2 mass fraction in the secondary air / recirculated flue gases mixture
Integer	mode	0	IF97 region. 1:liquid - 2:steam - 4:saturation line - 0:automatic
Units.SI.SpecificEnthalpy	Heauom		Biomass water specific enthalpy
Units.SI.AbsolutePressure	Psateom		Water saturation presure at Teom
Units.SI.SpecificEnthalpy	Hvteom		Steam saturation specific enthalpy at Teom
Units.SI.SpecificEnthalpy	Hlteom		Water saturation specific enthalpy at Teom
Units.SI.SpecificEnthalpy	Hvapteom		Phase transition energy at Teom
Units.SI.SpecificEnthalpy	Hs1vom		Water specific enthalpy of the outgoing biomass at T1sfm vapor
Units.SI.SpecificEnthalpy	Heom		Biomass specific enthalpy at the inlet
Units.SI.Power	Wff		Flue gases formation energy
Units.SI.Power	Wp		Biomass pyrolysis power
Units.SI.Power	Wimbp		Power saved in the combustion flue gases due to the non-destruction of unburnt C
Units.SI.Power	Wimbm		Power lost by the combustion flue gases due to the non-combustion of unburnt C
Units.SI.SpecificEnthalpy	Hpyr		Pyrolysis specific enthalpy
Units.SI.SpecificEnthalpy	H1om		Specific enthalpy of the dry biomass at the pyrolysis temperature of the biomass
Units.SI.MassFlowRate	Q1H2O		H2O mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q1O2		O2 mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q1N2		N2 mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q1CO2		CO2 mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q1SO2		SO2 mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q1g		Total mass flow rate at the oultet of zone 1
Units.SI.MassFlowRate	Q2eom		Biomass mass flow rate at the inlet of zone 2
Real	PCI1om		LHV after drying
Real	X1MACHom		Clinker mass fraction in the biomass after drying
Real	XC1vol2		Burnt C mass fraction in zone 2 after drying
Real	XC1vol3		Burnt C mass fraction in zone 3 after drying
Real	X1MACHimb		Unburnt C mass fraction in the clinker after drying
Real	X1H		H mass fraction in the biomass after drying
Real	X1O		O mass fraction in the biomass after drying
Real	X1N		N mass fraction in the biomass after drying
Real	X1Cl		Cl mass fraction in the biomass after drying
Real	X1F		F mass fraction in the biomass after drying
Real	X1S		S mass fraction in the biomass after drying
Real	X1CEND		Ashes mass fraction in the biomass after drying
Units.SI.MassFlowRate	Qcendom		Ashes mass flow rate
Real	Xfcend		Ashes mass fraction in the flue gases
Units.SI.Power	P1g		Power saved in zone 1
Units.SI.MassFlowRate	Q2eo		Mass flow rate of the oxygen carried by the air and the biomass at the inlet of zone 2
Units.SI.MassFlowRate	Q2HCl		Combustion HCl mass fraction in zone 2
Units.SI.MassFlowRate	Q2HF		Combustion HF mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2SO2		Combustion SO2 mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2H2O		Combustion H2O mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2CO		Combustion CO mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2N2		Combustion N2 mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2O2		Combustion O2 mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2cend		Combustion ashes mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2CO2		Combustion CO2 mass flow rate at the outlet of zone 2
Units.SI.MassFlowRate	Q2g		Elements total mass flow rate after combustion
Real	Epsivol		Volatile matter mass fraction produced in zone 2
Units.SI.MassFlowRate	Q3eom		Solid matter at the inlet of zone 3
Real	X2MACHom		Clinker mass fraction of the biomass after volatilisation
Real	XC2vol3		C mass fraction burnt in zone 3 after volatilisation
Real	X2MACHimb		Unburnt C mas fraction in the clinker after volatilisation
Real	PCICsol		LHV of the solid outgoing carbon
Real	PCICvol		LHV of the volatile carbon transformed into CO
Units.SI.SpecificEnthalpy	H2		Enthalpy released in zone 2
Units.SI.Power	P2g		Power released by the combustion in zone 2
Units.SI.Power	P1o		Power captured by the biomass
Units.SI.Power	P1v		Power captured by the steam
Units.SI.Power	P1a		Power captured by the air
Units.SI.Power	P1r		Power captured by the cooling water
Real	Eray0		Fraction of the radiated power from zone 2 unused for the drying
Real	X2O2		O2 mass fraction at the oultet of zone 2
Real	X2SO2		SO2 mass fraction at the oultet of zone 2
Real	X2CO2		CO2 mass fraction at the oultet of zone 2
Real	X2H2O		H2O mass fraction at the oultet of zone 2
Real	X2N2		N2 mass fraction at the oultet of zone 2
Units.SI.SpecificEnthalpy	H2g		Flue gases specific enthalpy at the oultet of zone 2
Units.SI.Temperature	T2		Flue gases temperature at the oultet of zone 2
Units.SI.MassFlowRate	Q3od		O mass flow rate available for the oxydation of the clinker in CO and/or CO2
Units.SI.MassFlowRate	Q3cd		C mass flow rate available for the oxydation of the clinker in CO and/or CO2
Real	taux3oc		Ratio of the mass flow rates O/C available for the oxydation of the clinker
Units.SI.MassFlowRate	Q3CO2		CO2 mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q3CO		CO mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q3O2		O2 mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q3N2		N2 mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q3H2O		H2O mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q3SO2		SO2 mass flow rate at the outlet of zone 3
Units.SI.Power	P3s		Power captured by solid matter in zone 3
Units.SI.Power	P3g		Power captured by gaseous matter in zone 3
Units.SI.SpecificEnthalpy	H3s		Gaseous matter specific enthalpy at T3g
Units.SI.SpecificEnthalpy	H3g		Solid matter specific enthalpy at T3o
Real	XC2vol31		C mass fraction burnt in zone 3 after volatilisation
Real	XC2vol4		C mass fraction burnt at the inlet of zone 4
Units.SI.MassFlowRate	Q3g		Flue gases mass flow rate at the outlet of zone 3
Units.SI.MassFlowRate	Q4eom		Clinker mass flow rate at the inlet of zone 4
Real	X4MACHom		Mass flow rate of the biomass clinker after C volatilisation in zone 3
Real	X4MACHimb		Unburnt C mass fraction in the clinker after C volatilisation in zone 3
Units.SI.SpecificHeatCapacity	Cp3a		Average specific heat capacity at the inlet of zone 3
Units.SI.Temperature	T3o		Clinker temperature at the outlet of zone 3
Units.SI.Power	P3ac		Air power heated at (T2 + T3o)/2
Units.SI.Power	P3co		CO power heated at (T2 + T3o)/2
Units.SI.Power	P3		Total flue gases power at the outlet of zone 3
Units.SI.Temperature	T4o		Clinker temperature at the outlet for the water seal
Units.SI.Temperature	T4er		Water temperature at the inlet of the water seal
Real	X4H2O		H2O mass fraction in the clinker at the outlet of the water seal
Units.SI.SpecificHeatCapacity	Cp4liq		Water specific heat capacity at TEej
Units.SI.Power	P4m		Power lost by the clinker during vaporisation
Units.SI.Power	P4h		Power associated to the clinker humidity
Units.SI.MassFlowRate	Q4v		Steam mass flow rate generated by the water seal
Units.SI.SpecificEnthalpy	H4		Enthalpy in zone 4
Units.SI.Power	P4v		Power captured by the steam in zone 4
Units.SI.MassFlowRate	QO2p		Flue gases O2 mass flow rate at the outlet
Units.SI.MassFlowRate	Qairp		Excess air mass flow rate for data Qo2p
Units.SI.MassFlowRate	Qairs		Stoechiometric air mass flow rate
Units.SI.MassFlowRate	Q5eH2O		Steam mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eCO		CO mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eCO2		CO2 mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eO2		O2 mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eN2		N2 mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eSO2		SO2 mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eHCl		HCl mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eHF		HF mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5ecend		Ashes mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5eam		Total mass flow rate at the inlet of zone 5
Units.SI.MassFlowRate	Q5od		O mass flow rate available in zone 5
Units.SI.MassFlowRate	Q5cd		C mass flow rate available in zone 5
Units.SI.MassFlowRate	Q5hd		H mass flow rate available in zone 5
Units.SI.MassFlowRate	Q5ost		Stoechiométrique O mass flow rate for zone 5
Real	exc5		Air excess for zone 5
Units.SI.Power	P5		Power released by oxydation in zone 5
Units.SI.MassFlowRate	Q5sCO2		CO2 mass flow rate at the outlet of zone 5
Units.SI.MassFlowRate	Q5sO2		O2 mass flow rate at the outlet of zone 5
Units.SI.MassFlowRate	Q5sCO		CO mass flow rate at the outlet of zone 5
Units.SI.Power	P5s		Power released by oxydation in zone 5
Real	XsfCO		Flue gases CO mass fraction at the outlet of zone 5
Real	XsfN21		Flue gases N2 mass fraction at the outlet of zone 5
Real	XsfHCl		Flue gases HCl mass fraction at the outlet of zone 5
Real	XsfHF		Flue gases HF mass fraction at the outlet of zone 5
Real	XsfCEND		Ashes mass fraction at the outlet of zone 5
Units.SI.Power	P5a		Power brought by secondary air
Units.SI.Power	P5t		Power accumulated in the flue gases
Real	Xcor		Corrective factor for the flue gases mass fractions
Real	X5sH2OC		Corrected flue gases H2O mass fraction
Real	X5sCO2C		Corrected flue gases CO2 mass fraction
Real	X5sO2C		Corrected flue gases O2 mass fraction
Real	X5sSO2C		Corrected flue gases SO2 mass fraction
Real	X5sN2C		Corrected flue gases N2 mass fraction
Units.SI.Density	rhonorm		Density of the outgoing flue gases Masse at 0 deg C and 1 atm
Real	FVN0		Ashes normal volume fraction for the computation of FVN
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_pT	pro1
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_pT	pro2
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_pT	pro3
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_pT	pro4
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_pT	pro5

Revisions

Author  

Baligh El Hefni