modelPV_Boiler
PV + gas boiler
Extends from Base.Systems.
Information
1. Purpose of model
Combination of PV and boiler models to be used in the energyConverter.
2. Level of detail, physical effects considered, and physical insight
(Purely technical component without physical modeling.)
3. Limits of validity
(Purely technical component without physical modeling.)
4. Interfaces
TransiEnt.Basics.Interfaces.Combined.HouseholdDemandIn demand
TransiEnt.Basics.Interfaces.Electrical.ApparentPowerPort epp - connection to electrical grid
TransiEnt.Basics.Interfaces.Gas.RealGasPortIn gasPortIn - connection to gas grid
5. Nomenclature
(no remarks)
6. Governing Equations
(no remarks)
7. Remarks for Usage
The model contains models for a PV module, a battery, an inverter, a gas boiler and a controller for the operation of the battery. Different control modes can be selected. If no battery is present in the system, the capacity can be set to zero.
8. Validation
(no remarks)
9. References
(no remarks)
10. Version History
Model created by Anne Hagemeier, Fraunhofer UMSICHT in 2017
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | el_grid (from Systems) | ||
| Boolean | gas_grid (from Systems) | ||
| Boolean | DHN (from Systems) | ||
| TransiEnt.Producer.Electrical.Photovoltaics.Advanced_PV.Characteristics.Generic_Characteristics_PVModule | PVModuleCharacteristics | TransiEnt.Producer.Electrical.Photovoltaics.Advanced_PV.Characteristics.PVModule_Characteristics_Sanyo_HIT_200_BA3() | |PV Parameters|Characteristics of PV Module |
| Real | Soiling | 5 | |Radiation Parameters|Average annual losses of radiation in % due to soiling |
| TransiEnt.Basics.Units.MonetaryUnitPerEnergy | Cspec_demAndRev_gas_fuel | simCenter.Cfue_GasBoiler | |Statistics|Specific demand-related cost per gas energy |
| TransiEnt.Basics.Types.TypeOfResource | TypeOfResource1 | TransiEnt.Basics.Types.TypeOfResource.Conventional | |Statistics|Type of resource for boiler |
| TransiEnt.Basics.Types.TypeOfResource | TypeOfResource2 | TransiEnt.Basics.Types.TypeOfResource.Renewable | |Statistics|Type of resource for PV |
| TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrierHeat | TypeOfEnergyCarrierHeat | TransiEnt.Basics.Types.TypeOfPrimaryEnergyCarrierHeat.NaturalGas | |Statistics|Type of energy carrier |
| System setup | |||
| String | waterHeating | "gas" | |
| Boolean | battery | false | Is there a PV battery installed? |
| Boolean | useGasPort | true | True if gas port shall be used |
| Fundamental definitions | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | FuelMedium | simCenter.gasModel1 | Fuel gas medium |
| SI.SpecificEnthalpy | HoC_fuel | 40e6 | heat of combustion of natural gas |
| Boiler Parameters | |||
| SI.Efficiency | eta | 1.05 | Boiler's overall efficiency |
| SI.HeatFlowRate | Q_flow_n_boiler | 10000 | Nominal heating power of the gas boiler |
| PV Parameters | |||
| SI.Power | P_inst | 5000 | Combined installed power |
| SI.Power | Pmpp | 200 | Peak power of one module |
| SI.Area | Area | 1.18 | Area of one complete module |
| Real | Strings | 1 | Choose amount of strings |
| Real | GroundCoverageRatio | 0.3 | Ratio of covered ground of modules to area of modules |
| Real | LossesDC | 4.44 | Losses in % through connections, wiring, tracking error and mismatches |
| SI.ActivePower | P_n | 5000 | Rated power of the inverter |
| SI.PowerFactor | cosphi | 1 | Operating power factor of the inverter |
| Real | Threshold | 0.7 | Percentage of peak power at which power is cut |
| Integer | behavior | -1 | |
| SI.Efficiency | eta_Inverter | 0.97 | Efficiency of the inverter |
| Battery Parameters | |||
| TransiEnt.Storage.Electrical.Specifications.LithiumIon | params | Record of generic storage parameters | |
| Radiation Parameters | |||
| SI.Angle | longitude_local | Modelica.Units.Conversions.from_deg(10) | longitude of the local position, east positive, 10 East for Hamburg |
| SI.Angle | longitude_standard | Modelica.Units.Conversions.from_deg(15) | needed for calculation of coordinated universal time (utc), 15 for central european time, 30 for central european summer time |
| Modelica.Units.NonSI.Time_day | totaldays | 365 | total days of the year, standard=365, leap year=366 |
| SI.Angle | latitude | Modelica.Units.Conversions.from_deg(53.55) | latitude of the local position, north posiive, 53,55 North for Hamburg |
| SI.Angle | Tilt | Modelica.Units.Conversions.from_deg(0) | Inclination of surface |
| SI.Angle | Azimuth | Modelica.Units.Conversions.from_deg(0) | Gyration of surface; Orientation: +90=West, -90=East, 0=South |
| Real | Albedo | 0.25 | Average annual losses of radiation in % due to soiling |
| Storage Parameters | |||
| SI.Temperature | T_s_max | 363.15 | Maximum storage temperature |
| SI.Temperature | T_s_min | 303.15 | Minimum storage temperature |
| SI.Volume | V_Storage | 0.5 | Volume of the Storage |
| SI.Height | height | 1.3 | Height of heat storage |
| Modelica.Units.NonSI.Temperature_degC | T_amb | 15 | Assumed constant temperature in tank installation room |
| SI.SurfaceCoefficientOfHeatTransfer | k | 0.08 | Coefficient of heat Transfer |
| Storage parameters | |||
| SI.Diameter | d | sqrt(4*V_Storage/Modelica.Constants.pi/height) | Diameter of heat storage |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Combined.HouseholdDemandIn | demand (from Systems) | Electricity, space heating, water heating | |
| TransiEnt.Basics.Interfaces.Thermal.FluidPortIn | waterPortIn (from Systems) | ||
| TransiEnt.Basics.Interfaces.Thermal.FluidPortOut | waterPortOut (from Systems) | ||
| TransiEnt.Basics.Interfaces.Electrical.ApparentPowerPort | epp (from Systems) | ||
| TransiEnt.Basics.Interfaces.Gas.RealGasPortIn | gasPortIn (from Systems) |
Components
Contents
| Name | Description |
|---|---|
 ProducerCosts |