modelDetailedCHP
Extends from TransiEnt.Producer.Combined.LargeScaleCHP.Base.PartialCHP (Partial model of a large scale CHP plant with characteristics specified by PQ boundaries and PQ-Heat input table).
Information
1. Purpose of model
Although in an early state of development, this model illustrates how a CHP plant can be modeled to increase the level of detail. The usage of the library interfaces allows the exchangability of the model with models of less level of detail.
2. Level of detail, physical effects considered, and physical insight
(no remarks)
3. Limits of validity
(no remarks)
4. Interfaces
P_set: input for power in [W] (connector of setpoint input signal)
Q_flow_set: input for heat flow rate in [W]
outlet: FluidPortOut
inlet: FluidPortIn
eye: EyeOut
5. Nomenclature
(no remarks)
6. Governing Equations
(no remarks)
7. Remarks for Usage
(no remarks)
8. Validation
(no remarks)
9. References
(no remarks)
10. Version History
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.HeatFlowRate | Q_flow_n_total (from PartialCHP) | Q_flow_n_CHP + Q_flow_n_Peak | |
| Integer | quantity (from PartialCHP) | 1 | |
| Boolean | integrateHeatFlow (from PartialCHP) | false | True if heat flow shall be integrated |
| Boolean | integrateElectricPower (from PartialCHP) | false | True if electric power shall be integrated |
| Boolean | integrateElectricPowerChp (from PartialCHP) | false | True if electric power of the chp shall be integrated |
| SI.Power | P_el_n_single (from PartialCHP) | P_el_n/quantity | |
| SI.Power | Q_flow_n_CHP_single (from PartialCHP) | Q_flow_n_CHP/quantity | |
| Physical Constraints | |||
| TransiEnt.Producer.Combined.LargeScaleCHP.Base.Characteristics.Generic_PQ_Characteristics | PQCharacteristics (from PartialCHP) | TransiEnt.Producer.Combined.LargeScaleCHP.Base.Characteristics.PQ_Characteristics_WW1() | Characteristics of CHP plant |
| Modelica.Units.SI.Power | P_el_n (from PartialCHP) | 300e6 | Installed capacity for investment cost calculation |
| Modelica.Units.SI.HeatFlowRate | Q_flow_n_CHP (from PartialCHP) | PQCharacteristics.PQboundaries[end, 1]/PQCharacteristics.k_Q_flow | Maximum possible heat flow according to PQ diagram |
| Modelica.Units.SI.HeatFlowRate | Q_flow_n_Peak (from PartialCHP) | 0 | Additional thermal capacity (e.g. peak load heaters) |
| Boolean | useConstantEfficiencies (from PartialCHP) | false | True, constant efficiency over load |
| SI.Efficiency | eta_el_const (from PartialCHP) | 0.4 | Constant efficiency used if useConstantEfficiencies=true |
| SI.Efficiency | eta_th_const (from PartialCHP) | 0.5 | Constant efficiency used if useConstantEfficiencies=true |
| SI.Efficiency | eta_peakload (from PartialCHP) | 0.98 | Constant efficiency of peak load heater annotation |
| Boolean | useConstantSigma (from PartialCHP) | false | True, use constant power to heat ration (sigma) instead of PQ characteristics |
| Real | sigma (from PartialCHP) | 0.3 | Power to heat ration used only if useConstantSigma=true |
| Advanced › Initialization | |||
| SI.ActivePower | P_el_init (from PartialCHP) | P_el_n | Initial or guess value of output (= state) |
| SI.HeatFlowRate | Q_flow_init (from PartialCHP) | Q_flow_n_total | Initial or guess value of output (= state) |
| Boolean | useEfficiencyForInit (from PartialCHP) | false | True, set efficiency; False set steam generator power at init |
| SI.HeatFlowRate | Q_flow_SG_init (from PartialCHP) | Q_flow_init + P_el_init | Initial or guess value of output (= state) of steam generator |
| Real | eta_el_init (from PartialCHP) | 0.4 | Thermal efficiency used at init time |
| Statistics | |||
| TransiEnt.Basics.Types.TypeOfResource | typeOfResource (from PartialCHP) | TransiEnt.Basics.Types.TypeOfResource.Cogeneration | Type of energy resource for global model statistics |
| TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrier | typeOfPrimaryEnergyCarrier (from PartialCHP) | TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrier.BlackCoal | Type of primary energy carrier for co2 emissions global statistics |
| TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrierHeat | typeOfPrimaryEnergyCarrierHeat (from PartialCHP) | TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrierHeat.BlackCoal | Type of primary energy carrier for heat for co2 emissions global statistics |
| TransiEnt.Basics.Types.TypeOfCO2AllocationMethod | typeOfCO2AllocationMethod (from PartialCHP) | 1 | Type of allocation method |
| Heating condenser parameters | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | medium (from PartialCHP) | simCenter.fluid1 | Medium to be used |