modelCombustionChamberBase
Extends from ClaRa_Obsolete.Basics.Icons.Obsolete_v1_3 (This model will be not longer supported than Version 1.5!).
Information
Model description: Base class for burner and furnace sections
Contact: Lasse Nielsen, TLK-Thermo GmbH
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | T_0 | 298.15 | Reference temperature |
| Media Definitions | |||
| ClaRa.Basics.Media.Fuel.PartialFuel | fuelType | simCenter.fuelModel1 | Fuel elemental composition used for combustion |
| ClaRa.Basics.Media.Slag.PartialSlag | slagType | simCenter.slagModel | Slag properties |
| TILMedia.Gas.Types.BaseGas | flueGas | simCenter.flueGasModel | Flue gas model used in component |
| Slag temperature definitions | |||
| Integer | slagTemperature_calculationType | 1 | Calculation type of outflowing slag temperature |
| ClaRa.Basics.Units.Temperature | T_slag | 900 | Constant slag outlet temperature |
| Heat Transfer | |||
| Modelica.Units.SI.Time | Tau_rad | 0.1 | Radiation time constant |
| Nominal Values | |||
| Modelica.Units.SI.MassFlowRate | m_flow_nom | 10 | Nominal mass flow rates at inlet |
| 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 | T_start_flueGas_out | Initial temperature of top volume |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_start_flueGas_out | {0.01, 0, 0.1, 0, 0.74, 0.13, 0, 0.02, 0} | Start composition of flue gas |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_flueGas_out_start | -15 | Start volume flow at outlet |
| Modelica.Units.SI.SpecificEnthalpy | h_start | TILMedia.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.Time | Tau | 0.001 | Time constant for heat transfer temperature delay |
| Summary and Visualisation | |||
| Boolean | showData | false | True, if characteristic data shall be visualised in model icon |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Basics.Interfaces.FuelSlagFlueGas_inlet | inlet | ||
| Basics.Interfaces.FuelSlagFlueGas_outlet | outlet | ||
| ClaRa.Basics.Interfaces.HeatPort_a | heat_wall | ||
| ClaRa.Basics.Interfaces.HeatPort_a | heat_top | ||
| ClaRa.Basics.Interfaces.HeatPort_a | heat_bottom | ||
| ClaRa.Basics.Interfaces.EyeOutGas | eyeOut |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.SimCenter | simCenter | ||
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_flueGas | Flue gas composition | |
| ClaRa.Basics.Units.MassFraction[fuelType.nc - 1] | xi_fuel_out | Fuel outlet composition | |
| ClaRa.Basics.Units.Area | A_cross | geo.A_front | Cross section |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_flueGas_in | Inlet volume flow | |
| ClaRa.Basics.Units.VolumeFlowRate | V_flow_flueGas_out | Outlet volume flow | |
| Modelica.Units.SI.Mass | mass | Gas mass | |
| ClaRa.Basics.Units.HeatFlowRate | Q_flow_top | Heat flow from top section | |
| ClaRa.Basics.Units.HeatFlowRate | Q_flow_bottom | Heat flow from bottom section | |
| ClaRa.Basics.Units.HeatFlowRate | Q_flow_wall | Heat flow from walls | |
| ClaRa.Basics.Units.MassFraction[fuelType.nc - 1] | xi_fuel_in | Fuel inlet composition | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_flueGas_out | Gas outlet specific enthalpy | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_flueGas_out_del | Gas outlet specific enthalpy - delayed | |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_flueGas_del | Flue gas outlet composition - dalayed | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | LHV | ||
| Modelica.Units.SI.SpecificHeatCapacity | cp | ||
| ClaRa.Basics.Units.Time | t_dwell_flueGas | geo.height/particleMigration.w | Flow time in z-direction |
| Real | unburntFraction | Quantatity describes how much unburned fuel leaves control volume together with the fluegas to neighbor cell | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_oxygen_req | Required O2 flow rate for stochiometric combustion | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_air_req | Required combustion air flow rate for stochiometric combustion determined in dependence of m_flow_oxygen_req and actual Xi of gasInlet | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_fuel_burned | Burned flue mass flow | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_oxygen_burned | Oxygen used for combustion | |
| Real | lambdaComb | Excess air | |
| TILMedia.Gas.Gas_pT | ideal_combustion | ||
| Geometry | geo | ||
| HeatTransfer_Wall | heattransfer_wall | ||
| HeatTransfer_Top | heattransfer_top | ||
| ClaRa.Components.Furnace.GeneralTransportPhenomena.ThermalCapacities.ThermalLowPass | radiationTimeConstant | ||
| ReactionZone | reactionZone | ||
| Burning_time | burning_time | ||
| ParticleMigration | particleMigration | ||
| PressureLoss | pressureLoss |
Contents
| Name | Description |
|---|---|
 Outline | |
 Fuel | |
 Slag | |
 Flow | |
 Summary | |
 HeatTransfer_Wall | |
| HeatTransfer_Top | |
 ReactionZone | |
 Burning_time | |
 ParticleMigration | |
 Geometry | |
 PressureLoss |