modelBurner2
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
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Units.HeatFlowRate | Q_flow | m_flow_vle_wall_out*(h_vle_wall_out - h_vle_wall_in) | |
| Integer | N_cv_wall | size(Delta_x_wall, 1) | Number of finite volumes in wall |
| ClaRa.Basics.Units.TemperatureDifference | Delta_T_U | ClaRa.Basics.Functions.maxAbs(T_fg_mix_in - T_vle_wall_out, T_fg_out - T_vle_wall_in, 0.1) | Rprt: Upper temperatre difference |
| ClaRa.Basics.Units.TemperatureDifference | Delta_T_L | ClaRa.Basics.Functions.minAbs(T_fg_mix_in - T_vle_wall_out, T_fg_out - T_vle_wall_in, 0.1) | Rprt: Lowert temperature difference |
| ClaRa.Basics.Units.TemperatureDifference | Delta_T_mean | SM(0.1, eps, abs(Delta_T_L))*SM(0.01, eps, Delta_T_U*Delta_T_L)*SZT((Delta_T_U - Delta_T_L)/log(abs(Delta_T_U)/(abs(Delta_T_L) + 1e-9)), Delta_T_L, (abs(Delta_T_U) - abs(Delta_T_L)) - 0.01, 0.001) | Rprt: Logarithmic temperature difference |
| Real | kA | Q_flow/(1e-5 + Delta_T_mean) | Rprt: Heat Flow Resistance |
| ClaRa.Basics.Units.Pressure[N_cv_wall] | p_wall | ClaRa.Basics.Functions.pressureInterpolation(p_vle_wall_in, p_vle_wall_out, Delta_x_wall, frictionAtInlet_wall, frictionAtOutlet_wall) | Rprt: Discretisised pressure at tube bundle |
| ClaRa.Basics.Units.Temperature | T_vle_wall_in | TILMedia.VLEFluid.MixtureCompatible.Functions.temperature_phxi(vleMedium, p_vle_wall_in, h_vle_wall_in) | Rprt: VLE medium's inlet temperature |
| ClaRa.Basics.Units.Temperature | T_vle_wall_out | TILMedia.VLEFluid.MixtureCompatible.Functions.temperature_phxi(vleMedium, p_vle_wall_out, h_vle_wall_out) | VLE medium's outlet temperature |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_bub | TILMedia.VLEFluid.MixtureCompatible.Functions.bubbleSpecificEnthalpy_pxi(vleMedium, p_vle_wall_out) | Rprt: Bubble enthalpy at vle outlet |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_dew | TILMedia.VLEFluid.MixtureCompatible.Functions.dewSpecificEnthalpy_pxi(vleMedium, p_vle_wall_out) | Rprt: Dew enthalpy at vle outlet |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_vle_wall_in | Inlet specific enthalpy heated fluid | |
| ClaRa.Basics.Units.Pressure | p_vle_wall_out | Life steam pressure at current load | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_vle_wall_out | Inlet mass flow heated fluid | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_vle_wall_out | Outlet specific enthalpy heated fluid | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_fg_out | Outlet mass flow rate flue gas | |
| ClaRa.Basics.Units.Temperature | T_fg_out | Outlet temperature flue gas | |
| ClaRa.Basics.Units.Pressure | p_fg_out | Outlet pressure flue gas | |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_fg_in | Inlet composition flue gas | |
| ClaRa.Basics.Units.MassFlowRate | m_flow_fuel | Mass flow rate fuel | |
| ClaRa.Basics.Units.MassFraction[fuelModel.N_c - 1] | xi_fuel | Fuel composition | |
| ClaRa.Basics.Units.MassFraction[fuelModel.N_e - 1] | xi_fuel_e | {massFraction_i_xi(xi_fuel, i, fuelModel) for i in 1:fuelModel.N_e - 1} | Elemental composition fuel |
| ClaRa.Basics.Units.EnthalpyMassSpecific | LHV | LHV_pTxi(p, T, xi_fuel, fuelModel) | Lower heating value fuel |
| ClaRa.Basics.Units.Temperature | T_pa_in | Temperature of primary air | |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_pa_in | Inlet composition primary air | |
| Real | n_flow_C_primary | xi_fuel_e[1]*m_flow_fuel/ClaRa.Basics.Constants.M_C | Inlet molar flow rate fuel C |
| Real | n_flow_H_primary | xi_fuel_e[2]*m_flow_fuel/ClaRa.Basics.Constants.M_H | Inlet molar flow rate fuel H |
| Real | n_flow_O_primary | xi_fuel_e[3]*m_flow_fuel/ClaRa.Basics.Constants.M_O | Inlet molar flow rate fuel O |
| Real | n_flow_S_primary | xi_fuel_e[5]*m_flow_fuel/ClaRa.Basics.Constants.M_S | Inlet molar flow rate fuel S |
| Real | m_flow_oxygen_req_primary | (n_flow_C_primary + n_flow_H_primary/4.0 + n_flow_S_primary - n_flow_O_primary/2)*ClaRa.Basics.Constants.M_O*2.0 | Required oxygen for stoichiometric combustion |
| Real | m_flow_pa_in | lambda*m_flow_oxygen_req_primary/max(1e-32, xi_pa_in[6]) | Inlet mass flow primary air |
| ClaRa.Basics.Units.Pressure | Delta_p_vle | Pressure drop heated fluid | |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_fg_mix_in | (h_fg_in*m_flow_fg_in + h_pa_in*m_flow_pa_in)/(m_flow_fg_in + m_flow_pa_in) | Inlet mixed enthalpy flue gas |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_fg_mix_in | (xi_fg_in*m_flow_fg_in + xi_pa_in*m_flow_pa_in)/(m_flow_fg_in + m_flow_pa_in) | Inlet mixed composition flue gas |
| ClaRa.Basics.Units.Temperature | T_fg_mix_in | TILMedia.Gas.Functions.temperature_phxi(flueGas, p_fg_out, h_fg_mix_in, xi_fg_mix_in) | Inlet mixed temperature flue gas |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_fg_out | TILMedia.Gas.Functions.specificEnthalpy_pTxi(flueGas, p_fg_out, T_fg_out, xi_fg_in) | Outlet specific enthalpy flue gas |
| ClaRa.Basics.Units.Temperature | T_fg_in | TILMedia.Gas.Functions.temperature_phxi(flueGas, p_fg_out, h_fg_in, xi_fg_in) | Inlet temperature flue gas |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_pa_in | TILMedia.Gas.Functions.specificEnthalpy_pTxi(flueGas, p_fg_out, T_pa_in, xi_pa_in) | Inlet specific enthalpy primary air |
| ClaRa.Basics.Units.MassFraction | xi | zeros(vleMedium.nc - 1) | VLE composition in component, pure fluids supported only! |
| ClaRa.Basics.Units.Pressure | Delta_p_geo | TILMedia.VLEFluid.MixtureCompatible.Functions.density_phxi(vleMedium, p_vle_wall_out, h_vle_wall_out, xi)*Modelica.Constants.g_n*(z_wall_out - z_wall_in) | Geostatic pressure difference |
| ClaRa.Basics.Units.Pressure | p_vle_wall_in | p_vle_wall_out + Delta_p_vle + Delta_p_geo | Inlet pressure |
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_fg_in | (m_flow_fg_out*h_fg_out - m_flow_vle_wall_out*h_vle_wall_in + m_flow_vle_wall_out*h_vle_wall_out - m_flow_fuel*LHV - m_flow_pa_in*h_pa_in)/m_flow_fg_in | Inlet specific enthalpy flue gas |
| ClaRa.Basics.Units.MassFlowRate | m_flow_fg_in | (m_flow_fg_out - m_flow_fuel - m_flow_pa_in) | Inlet mass flow flue gas |
| ClaRa.Basics.Units.MassFraction[flueGas.nc - 1] | xi_fg_out | ClaRa.Basics.Functions.InitialiseCombustionGas(xi_fuel_e, m_flow_fuel, ((m_flow_fg_in*xi_fg_in) + (m_flow_pa_in*xi_pa_in))/(m_flow_pa_in + m_flow_fg_in), (m_flow_pa_in + m_flow_fg_in), false) | Outlet composition flue gas |
| Fundamental Definitions | |||
| TILMedia.VLEFluid.Types.BaseVLEFluid | vleMedium | simCenter.fluid1 | Medium in the component |
| TILMedia.Gas.Types.BaseGas | flueGas | simCenter.flueGasModel | Flue gas model used in component |
| ClaRa.Basics.Media.FuelTypes.BaseFuel | fuelModel | simCenter.fuelModel1 | Coal elemental composition used for combustion |
| Real | lambda | 1 | Stoichiometric air ratio |
| ClaRa.Basics.Units.Length | z_wall_in | 0.0 | Geodetic height at inlet |
| ClaRa.Basics.Units.Length | z_wall_out | 0.0 | Geodetic height at outlet |
| Nominal Operation Point | |||
| ClaRa.Basics.Units.EnthalpyMassSpecific | h_vle_wall_out_nom | Outlet specific enthalpy of fluid at nominal load | |
| ClaRa.Basics.Units.Pressure | Delta_p_vle_wall_nom | Heated fluid pressure loss at nominal load | |
| Discretisation (for reporting only) | |||
| ClaRa.Basics.Units.Length[:] | Delta_x_wall | ClaRa.Basics.Functions.GenerateGrid({0}, 10, 3) | Discretisation scheme - tube bundle side |
| Boolean | frictionAtInlet_wall | false | True if pressure loss between first cell and inlet shall be considered - tube bundle side |
| Boolean | frictionAtOutlet_wall | false | True if pressure loss between last cell and outlet shall be considered - tube bundle side |
| Part Load Definition | |||
| Real | P_target_ | Target power in p.u. | |
| Real[:,:] | CharLine_Delta_p_P_target_ | [0, 0; 0.1, 0.01; 0.3, 0.09; 0.5, 0.25; 0.7, 0.49; 1, 1] | Characteristic line of pressure drop as function of P_target_ |
| Real[:,2] | CharLine_h_P_target_ | [0, 1; 1, 1] | Characteristic line of h_vle_wall_out as function of P_target_ |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.StaticCycles.Fundamentals.FlueGasSignal_brown_b | outletGas | ||
| ClaRa.StaticCycles.Fundamentals.SteamSignal_red_b | outletWall | ||
| ClaRa.StaticCycles.Fundamentals.SteamSignal_red_a | inletWall | ||
| ClaRa.StaticCycles.Fundamentals.FuelSignal_black_a | inletFuel | ||
| ClaRa.StaticCycles.Fundamentals.FlueGasSignal_orange_a | inletPrimAir | ||
| ClaRa.StaticCycles.Fundamentals.FlueGasSignal_brown_a | inletGas |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.SimCenter | simCenter | ||
| Summary | summary |
Contents
| Name | Description |
|---|---|
 Summary |
Revisions
For revisions please consult the html-documentation shipped with ClaRa.