modelDryer

Aerosol component | dryer | for replaceable coal drying processes | respects thermal losses
Diagram of Dryer

Information

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
ClaRa.Basics.Units.PowerQ_loss-1*0.25*0.13*0.022*Q_steamGenerator_nom^0.7*1e6Thermal Loss: Number of Mills, Coefficient for Mills, Coefficient C=0.0220 from DIN EN 12952-15, Nominal effective thermal Power of Steam Generator in MW
Fundamental Definitions
TILMedia.Gas.Types.BaseGasgassimCenter.flueGasModelMedium model
ClaRa.Basics.Media.FuelTypes.BaseFuelfuelModelsimCenter.fuelModel1Coal elemental composition used for combustion
Fundamentals.Records.FuelClassification_baseclassificationFundamentals.Records.FuelClassification_example_21classes()
Initialisation
BooleanuseHomotopysimCenter.useHomotopyTrue, if homotopy method is used during initialisation
ClaRa.Basics.Units.Pressurep_start1.013e5Initial value for air pressure
ClaRa.Basics.Units.TemperatureT_startsimCenter.T_amb_startinitial temperature in drying zone
ClaRa.Basics.Units.MassFlowRatem_flow_H2O_evap_start1.5initianl mass flow rate of evaporated coal H2O
ClaRa.Basics.Units.MassFraction[gas.nc - 1]xi_gas_in_start{0, 0, 0, 0, 0.79, 0.21, 0, 0, 0}initial composition of incoming air
ClaRa.Basics.Units.MassFraction[gas.nc - 1]xi_gas_out_start{0, 0, 0, 0, 0.79, 0.21, 0, 0.2, 0}initial composition of outgoing air
ClaRa.Basics.Units.Massmass_fuel_start100initial fuel mass
ClaRa.Basics.Units.Massmass_gas_start100initial gas mass
Nominal Values
ClaRa.Basics.Units.MassFlowRatem_flow_fuel_nom10Nominal mass flow rates at inlet
ClaRa.Basics.Units.MassFlowRatem_flow_gas_nom10Nominal mass flow rates at inlet
ClaRa.Basics.Units.PowerP_grinding_nom460e3Nominal electrical Power for Grinding
ClaRa.Basics.Units.PowerQ_steamGenerator_nom2200Nominal effective thermal Power of Steam Generator in MW
ClaRa.Basics.Units.Massmass_mill116e3Total mass of mill construction
Geometry
ClaRa.Basics.Units.Volumevolume10volume of control volume

Connectors

TypeNameDefaultDescription
Basics.Interfaces.FuelInletDistrfuelInlet
Basics.Interfaces.FuelOutletDistrfuelOutlet
ClaRa.Basics.Interfaces.GasPortIngasInlet
ClaRa.Basics.Interfaces.GasPortOutgasOutlet

Components

TypeNameDefaultDescription
ClaRa.SimCentersimCenter
PressureLosspressureLossPressure loss model
Dryingdrying
Geometrygeo
ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.Generic_HT.IdealHeatTransfer_L2heattransfer
ClaRa.Basics.ControlVolumes.SolidVolumes.CylindricalThickWall_L4cylindricalThickWall_L4_1
ClaRa.Basics.Records.IComBase_L2iCom
Fundamentals.Records.iCom_DryeriComDryer
ClaRa.Basics.Units.PowerP_grindingActual electrical Power for Grinding
ClaRa.Basics.Units.PressurepGas Pressure
ClaRa.Basics.Units.Massmass_fuel
ClaRa.Basics.Units.Massmass_gas
RealdrhodtDensity derivative
ClaRa.Basics.Units.MassFlowRatem_flow_H2O_evapMass flow rate of evaporated coal H2O //m_flow_evap
ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1]xi_wf_inMositure content of incoming wet fuel
ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1]xi_df_outMositure content of leaving dried fuel
ClaRa.Basics.Units.MassFraction[gas.nc - 1]xi_gas_inComposition of incoming air
ClaRa.Basics.Units.MassFraction[gas.nc - 1]xi_gas_outComposition of outgoing air
ClaRa.Basics.Units.MassFraction[gas.nc - 1]xi_bulk
ClaRa.Basics.Units.TemperatureTClassifier Temperature (outlet temperature)
ClaRa.Basics.Units.TemperatureT_gas_inPrimary air inlet temperature
ClaRa.Basics.Units.TemperatureT_wf_inCoal inlet temperature
TILMedia.Gas.Gas_pTgasIn
TILMedia.Gas.Gas_pTgasOut
TILMedia.Gas.Gas_pTgasBulk
ClaRa.Basics.Media.FuelObjectfuelIn
ClaRa.Basics.Media.FuelObjectfuelOut
Summarysummary
Modelica.Thermal.HeatTransfer.Sources.FixedHeatFlowfixedHeatFlow

Contents

NameDescription
PressureLoss
Drying
Geometry
HeatTransfer
Outline
Summary

Revisions

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