modelFossilFuelBoiler

Fossil fuel boiler

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. 7.2 of the ThermoSysPro book.

Parameters

Type	Name	Default	Description
Units.SI.Temperature	Tsf	400	Flue gases temperature at the outlet
Integer	Boiler_efficiency_type	1	1: Taking into account LHV only - 2: Using the total incoming power
ThermoSysPro.Units.xSI.PressureLossCoefficient	Kf	0.05	Flue gases pressure loss coefficient
ThermoSysPro.Units.xSI.PressureLossCoefficient	Ke	1e4	Water/steam pressure loss coefficient
Real	etacomb	1	Combustion efficiency (between 0 and 1)
Units.SI.Power	Wloss	1e5	Thermal losses
Units.SI.MassFlowRate	gamma_diff_ws	1e-4	Diffusion conductance for the water/steam side (active if diffusion=true in neighbouring volumes)
Boolean	continuous_flow_reversal	false	true: continuous flow reversal - false: discontinuous flow reversal
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
IF97Region	region	IF97Region.All_regions	IF97 region (active for IF97 water/steam only)

Connectors

Type	Name	Description
Interfaces.Connectors.FuelInlet	Cfuel	Fuel inlet
Interfaces.Connectors.FluidInlet	Cair	Air inlet
Interfaces.Connectors.FluidOutlet	Cfg	Flue gases outlet
Interfaces.Connectors.FluidInlet	Cws1	Water inlet
Interfaces.Connectors.FluidOutlet	Cws2	Water/steam outlet

Components

Type	Name	Default	Description
Units.SI.MassFlowRate	Qea		Air mass flow rate at the inlet
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
Units.SI.SpecificEnthalpy	Hrair		Air reference specific enthalpy
Real	XeaCO2		CO2 mass fraction at the inlet
Real	XeaH2O		H2O mass fraction at the inlet
Real	XeaO2		O2 mass fraction at the inlet
Real	XeaSO2		SO2 mass fraction at the inlet
Real	XeaO2c		Intermediate variable for the computation of the O2 mass fraction
Units.SI.MassFlowRate	Qcomb		Fuel mass flow rate
Units.SI.Temperature	Tcomb		Fuel temperature
Units.SI.SpecificEnthalpy	Hcomb		Fuel specific enthalpy
Units.SI.SpecificEnthalpy	Hrcomb		Fuel reference specific enthalpy
Real	XCcomb		Carbon mass fraction
Real	XHcomb		Hydrogen mass fraction
Real	XOcomb		Oxygen mass fraction
Real	XScomb		Sulfur mass fraction
Real	PCIcomb		Fuel PCI (J/kg)
Units.SI.SpecificHeatCapacity	Cpcomb		Fuel specific heat capacity
Units.SI.MassFlowRate	Qe		Water/steam mass flow rate
Units.SI.AbsolutePressure	Pee		Water/steam pressure at the inlet
Units.SI.AbsolutePressure	Pse		Water/steam pressure at the outlet
ThermoSysPro.Units.SI.PressureDifference	deltaPe		Water/steam pressure losses
Units.SI.Temperature	Tse		Water/steam temperature at the outlet
Units.SI.SpecificEnthalpy	Hee		Water/steam specific enthalpy at the inlet
Units.SI.SpecificEnthalpy	Hse		Water/steam specific enthalpy at the outlet
Units.SI.Density	rhoe		Average water/steam density
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	Tf		Flue gases temperature after combustion
Units.SI.SpecificEnthalpy	Hsf		Flue gases specific enthalpy at the outlet
Units.SI.SpecificEnthalpy	Hf		Flue gases specific enthalpy after combustion
Units.SI.SpecificEnthalpy	Hrfum		Flue gases reference specific enthalpy
ThermoSysPro.Units.SI.PressureDifference	deltaPf		Pressure losses in the combusiton chamber
Units.SI.Density	rhof		Flue gases density
Real	XsfCO2		CO2 mass fraction at the outlet
Real	XsfH2O		H2O mass fraction at the outlet
Real	XsfO2		O2 mass fraction at the outlet
Real	XsfSO2		SO2 mass fraction at the outlet
Units.SI.Power	Wfuel		Fuel available power PCI
Units.SI.Power	Wtot		Total incoming power
Units.SI.Power	Wboil		Power exchanged in the boiler
Real	eta_boil		Boiler efficiency (%)
Real	exc		Air combustion ratio
Real	exc_air		Pertcentage of air in excess
FluidType[2]	fluids		Fluids mixing in volume
Units.SI.SpecificEnthalpy	h		Flue gases specific enthalpy
Units.SI.Power	Jair		Thermal power diffusion from inlet Cair
Units.SI.Power	Jfg		Thermal power diffusion from outlet Cfg
Units.SI.Power	J		Total thermal power diffusion
Units.SI.MassFlowRate	gamma_air		Diffusion conductance for inlet Cair
Units.SI.MassFlowRate	gamma_fg		Diffusion conductance for outlet Cfg
Real	rair		Value of r(Q/gamma) for inlet Cair
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
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	pros
ThermoSysPro.Properties.WaterSteam.Common.ThermoProperties_ph	prom

Revisions

Author  

Baligh El Hefni