modelCombustionChamberBase

Diagram of CombustionChamberBase

Information

Model description: Base class for burner and furnace sections

For detailed model documentation please consult the html-documentation shipped with ClaRa.

 


Authorship and Copyright Statement for original (initial) Contribution

Author:

DYNCAP/DYNSTART development team, Copyright © 2011-2024.

References:

For references please consult the html-documentation shipped with ClaRa.

Remarks:

This component was developed by ClaRa development team under the 3-clause BSD License.

Acknowledgements:

ClaRa originated from the collaborative research projects DYNCAP and DYNSTART. Both research projects were supported by the German Federal Ministry for Economic Affairs and Energy (FKZ 03ET2009 and FKZ 03ET7060).

CLA:

The author(s) have agreed to ClaRa CLA, version 1.0. See https://claralib.com/pdf/CLA.pdf

By agreeing to ClaRa CLA, version 1.0 the author has granted the ClaRa development team a permanent right to use and modify his initial contribution as well as to publish it or its modified versions under the 3-clause BSD License.

The ClaRa development team consists of the following partners:

TLK-Thermo GmbH (Braunschweig, Germany)

XRG Simulation GmbH (Hamburg, Germany).

Parameters

TypeNameDefaultDescription
RealT_0298.15Reference temperature
Media Definitions
ClaRa.Basics.Media.FuelTypes.BaseFuelfuelModelsimCenter.fuelModel1Fuel elemental composition used for combustion
ClaRa.Basics.Media.Slag.PartialSlagslagTypesimCenter.slagModelSlag properties
TILMedia.Gas.Types.BaseGasflueGassimCenter.flueGasModelFlue gas model used in component
Combustion Settings › Slag temperature definitions
IntegerslagTemperature_calculationType1Calculation type of outflowing slag temperature
ClaRa.Basics.Units.TemperatureT_slag900Constant slag outlet temperature
Nominal Values
ClaRa.Basics.Units.MassFlowRatem_flow_nom10Nominal mass flow rates at inlet
Initialisation
ClaRa.Basics.Units.Pressurep_start_flueGas_out1e5Start pressure at outlet
ClaRa.Basics.Units.TemperatureT_start_flueGas_out700Start temperature at outlet
ClaRa.Basics.Units.TemperatureT_top_initialT_start_flueGas_outInitial temperature of top volume
ClaRa.Basics.Units.MassFraction[flueGas.nc - 1]xi_start_flueGas_outflueGas.xi_defaultStart composition of flue gas
ClaRa.Basics.Units.EnthalpyMassSpecifich_startTILMedia.Gas.Functions.specificEnthalpy_pTxi(flueGas, p_start_flueGas_out, T_start_flueGas_out, xi_start_flueGas_out)Start flue gas enthalpy
Expert Settings
ClaRa.Basics.Units.TimeTau0.001Time constant for heat transfer temperature delay
Summary and Visualisation
BooleanshowDatafalseTrue, if characteristic data shall be visualised in model icon

Connectors

TypeNameDefaultDescription
ClaRa.Basics.Interfaces.FuelSlagFlueGas_inletinlet
ClaRa.Basics.Interfaces.FuelSlagFlueGas_outletoutlet
ClaRa.Basics.Interfaces.HeatPort_aheat_wall
ClaRa.Basics.Interfaces.HeatPort_aheat_top
ClaRa.Basics.Interfaces.HeatPort_aheat_bottom
ClaRa.Basics.Interfaces.EyeOutGaseyeOut

Components

TypeNameDefaultDescription
ClaRa.SimCentersimCenter
ClaRa.Basics.Units.MassFraction[flueGas.nc - 1]xi_flueGasFlue gas composition
ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1]xi_fuel_outFuel outlet composition
ClaRa.Basics.Units.AreaA_crossgeo.A_frontCross section
ClaRa.Basics.Units.VolumeFlowRateV_flow_flueGas_inInlet volume flow
ClaRa.Basics.Units.VolumeFlowRateV_flow_flueGas_outOutlet volume flow
ClaRa.Basics.Units.MassmassGas mass
ClaRa.Basics.Units.HeatFlowRateQ_flow_topHeat flow from top section
ClaRa.Basics.Units.HeatFlowRateQ_flow_bottomHeat flow from bottom section
ClaRa.Basics.Units.HeatFlowRateQ_flow_wallHeat flow from walls
ClaRa.Basics.Units.MassFraction[fuelModel.N_e - 1]elementaryComposition_fuel_inFuel inlet composition
ClaRa.Basics.Units.EnthalpyMassSpecifich_flueGas_outGas outlet specific enthalpy
ClaRa.Basics.Units.EnthalpyMassSpecificLHV
ClaRa.Basics.Units.Timet_dwell_flueGasgeo.height/particleMigration.wFlow time in z-direction
RealunburntFractionQuantatity describes how much unburned fuel leaves control volume together with the fluegas to neighbor cell
ClaRa.Basics.Units.MassFlowRatem_flow_oxygen_reqRequired O2 flow rate for stochiometric combustion
ClaRa.Basics.Units.MassFlowRatem_flow_air_reqRequired combustion air flow rate for stochiometric combustion determined in dependence of m_flow_oxygen_req and actual Xi of gasInlet
ClaRa.Basics.Units.MassFlowRatem_flow_fuel_burnedBurned flue mass flow
ClaRa.Basics.Units.MassFlowRatem_flow_oxygen_burnedOxygen used for combustion
ReallambdaCombExcess air
ClaRa.Basics.Units.PressurepPressure inside volume
TILMedia.Gas.Gas_pTideal_combustion
Geometrygeo
HeatTransfer_Wallheattransfer_wall
HeatTransfer_Topheattransfer_top
ClaRa.Components.Furnace.GeneralTransportPhenomena.ThermalCapacities.ThermalLowPassradiationTimeConstant
ReactionZonereactionZone
Burning_timeburning_time
ParticleMigrationparticleMigration
PressureLosspressureLoss

Contents

NameDescription
HeatTransfer_Wall
HeatTransfer_Top
Burning_time
ParticleMigration
Geometry
PressureLoss
ReactionZone

Revisions

For revisions please consult the html-documentation shipped with ClaRa.