modelFreeboardSlice_L4

Furnace slice of freeboard with cooled walls

Extends from ClaRa.Basics.Icons.FreeboardSlice.

Information

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

Authorship and Copyright Statement for original (initial) Contribution

Author:

www.fvtr.de

References:

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

Remarks:

This component was developed by Forschungszentrum für Verbrennungsmotoren und Thermodynamik Rostock GmbH for industry projects in cooperation with Lausitz Energie Kraftwerke AG, Cottbus.

Acknowledgements:

This model contribution is sponsored by Lausitz Energie Kraftwerke AG.

www.leag.de

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

Type	Name	Default	Description
Media Definitions
ClaRa.Basics.Media.FuelTypes.BaseFuel	fuelModel	simCenter.fuelModel1	Fuel definition
TILMedia.Gas.Types.BaseGas	flueGas	simCenter.flueGasModel	Flue gas model
ClaRa.Basics.Media.Slag.PartialSlag	slagType	simCenter.slagModel	Slag properties
Fundamental Definitions
Boolean	additionalFuelGasConnector	true	True if an additional fuel and gas connector is available
Geometry
ClaRa.Basics.Units.Length	length_furnace	10	Length of the component
ClaRa.Basics.Units.Length	width_furnace	length_furnace	Width of the component
ClaRa.Basics.Choices.GeometryOrientation	flowOrientation_furnace	ClaRa.Basics.Choices.GeometryOrientation.vertical	Orientation of shell side flow
General › Geometry
ClaRa.Basics.Units.Length	z_in_furnace	0	Height of inlet ports
ClaRa.Basics.Units.Length	z_out_furnace	1	Height of outlet ports
Initialisation
ClaRa.Basics.Units.Pressure	p_start_flueGas_out	1e5	Start pressure at outlet
ClaRa.Basics.Units.Temperature	T_start_flueGas_out	700	Start temperature at outlet
Modelica.Units.SI.Temperature	T_top_initial	flameRoom.T_start_flueGas_out	Initial temperature of top volume
ClaRa.Basics.Units.MassFraction[flueGas.nc - 1]	xi_start_flueGas_out	flueGas.xi_default	Start composition of flue gas
Nominal Values
Modelica.Units.SI.MassFlowRate	m_flow_nom_gas	1000	Nominal mass flow rates at inlet
Combustion Settings › Slag Definitions
Integer	slagTemperature_calculationType	1	Calculation type of outflowing slag temperature
ClaRa.Basics.Units.Temperature	T_slag	900	Constant slag outlet temperature
Finned Tube Walls (FTW) › Fundamental Definitions
TILMedia.VLEFluid.Types.BaseVLEFluid	medium_FTW	simCenter.fluid1	FTW medium model
Boolean	frictionAtInlet_FTW	false	True if pressure loss at inlet
Boolean	frictionAtOutlet_FTW	false	True if pressure loss at outlet
Finned Tube Walls (FTW) › Geometry
Modelica.Units.NonSI.Angle_deg	psi_FTW	23	Inclination of pipes
ClaRa.Basics.Units.Length	length_FTW	abs(z_out_furnace - z_in_furnace)/sin(rad2deg(psi_FTW))	Length of the pipe
ClaRa.Basics.Units.Length	diameter_o_FTW	57e-3	Outer diameter
ClaRa.Basics.Units.Length	diameter_i_FTW	49e-3	Inner diameter of the pipe
ClaRa.Basics.Units.Length	z_in_FTW	z_in_furnace	Height of inlet above ground
ClaRa.Basics.Units.Length	z_out_FTW	z_out_furnace	Height of outlet above ground
Integer	N_tubes_FTW	1050	Number Of parallel pipes
Integer	N_passes_FTW	1	Number of passes of the tubes
Finned Tube Walls (FTW) › Discretisation
Integer	N_cv_FTW	3	Number of finite volumes
ClaRa.Basics.Units.Length[N_cv_FTW]	Delta_x_FTW	ClaRa.Basics.Functions.GenerateGrid({0}, length_FTW, N_cv_FTW)	Discretisation scheme
Finned Tube Walls (FTW) › Initialisation
Integer	initOption_FTW	0	Type of initialisation
ClaRa.Basics.Units.EnthalpyMassSpecific[N_cv_FTW]	h_start_FTW	ones(N_cv_FTW)*800e3	Initial specific enthalpy for single tube
ClaRa.Basics.Units.Pressure[N_cv_FTW]	p_start_FTW	ones(N_cv_FTW)*1e5	Initial pressure
ClaRa.Basics.Units.MassFraction[medium_FTW.nc - 1]	xi_start_FTW	zeros(medium_FTW.nc - 1)	Initial composition
Finned Tube Walls (FTW) › Nominal Values
ClaRa.Basics.Units.EnthalpyMassSpecific[N_cv_FTW]	h_nom_FTW	ones(N_cv_FTW)*1e5	Nominal specific enthalpy for single tube
ClaRa.Basics.Units.Pressure[N_cv_FTW]	p_nom_FTW	ones(N_cv_FTW)*1e5	Nominal pressure
ClaRa.Basics.Units.MassFlowRate	m_flow_nom_FTW	100	Nominal mass flow w.r.t. all parallel tubes
ClaRa.Basics.Units.PressureDifference	Delta_p_nom_FTW	1e4	Nominal pressure loss w.r.t. all parallel tubes
Summary and Visualisation
Boolean	showExpertSummary	simCenter.showExpertSummary	True, if an extended summary shall be shown, else false
Boolean	showData	true	True if data connectors shall be shown

Connectors

Type	Name	Description
ClaRa.Basics.Interfaces.FluidPortOut	outlet_FTW	Outlet port
ClaRa.Basics.Interfaces.FluidPortIn	inlet_FTW	Inlet port
ClaRa.Basics.Interfaces.HeatPort_a	heat_bottom
ClaRa.Basics.Interfaces.FuelSlagFlueGas_inlet	inletFG
ClaRa.Basics.Interfaces.FuelSlagFlueGas_outlet	outletFG
ClaRa.Basics.Interfaces.HeatPort_a	heat_top
ClaRa.Basics.Interfaces.EyeOut	eyeFTW
ClaRa.Basics.Interfaces.EyeOutGas	eyeFG
ClaRa.Basics.Interfaces.FuelFlueGas_inlet	inletFG2

Components

Type	Name	Default	Description
ClaRa.SimCenter	simCenter
ClaRa.Basics.ControlVolumes.SolidVolumes.CylindricalThinWall_L4	wall_FTW
ClaRa.Components.Adapters.Scalar2VectorHeatPort	adapt_FTW
ClaRa.Components.Furnace.FlameRoom.FlameRoomAdditionalAir_L2_Dynamic	flameRoom
ClaRa.Components.VolumesValvesFittings.Pipes.PipeFlowVLE_L4_Simple	pipeFlow_FTW

Name	Description
GasHeatTransfer_Wall
GasHeatTransfer_Top
GasPressureLoss
Burning_time
ParticleMigration
ReactionZone
Material_FTW
PressureLoss_FTW
HeatTransfer_FTW
MechanicalEquilibrium_FTW