recordPhotovoltaicThermalBaseDataDefinition

Base Data Definition for photovoltaic thermal collectors

Extends from AixLib.Fluid.SolarCollectors.Data.GenericEN12975 (Generic data record for EN12975 solar collector models).

Information

Overview

This record extends the solar thermal collectors records and adds efficiency curves for the electrical part to enable a model of a photovoltaic thermal collector. Note that the default values for angles, pressure drops and panel area are generic assumptions based on values for solar thermal collectors provided in AixLib.Fluid.SolarCollectors.Data. If you want to model a specific device, check the general UsersGuide for information on these parameters and set them appropriately: AixLib.Fluid.SolarCollectors.UsersGuide.

References

Record is used in model AixLib.Fluid.SolarCollectors.PhotovoltaicThermal.EN12975Curves.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.AreaA (from Generic)Area
AixLib.Fluid.SolarCollectors.Types.HeatCapacityCTyp (from Generic)Total thermal capacity or fluid volume and 'dry' thermal capacity or mass
Modelica.Units.SI.HeatCapacityC (from Generic)Dry or total thermal capacity of the solar thermal collector
Modelica.Units.SI.VolumeV (from Generic)Fluid volume
Modelica.Units.SI.MassmDry (from Generic)Dry mass
RealmperA_flow_nominal (from Generic)Nominal mass flow rate per unit area of collector
Modelica.Units.SI.PressureDifferencedp_nominal (from Generic)Nominal pressure drop
Modelica.Units.SI.AngleincAngDat (from Generic)Modelica.Units.Conversions.from_deg({0, 10, 20, 30, 40, 50, 60, 70, 80, 90})Incident angle data
RealincAngModDat (from Generic)Incident angle modifier data
Booleanvalidated (from Generic)validateAngles(incAngDat = incAngDat, incAngModDat = incAngModDat)True if data are valid, otherwise an assertion is issued
RealIAMDiff (from GenericEN12975)Incidence angle modifier for diffuse irradiance (incidence angle of 50°)
Realeta0 (from GenericEN12975)Optical efficiency (Maximum efficiency)
Modelica.Units.SI.CoefficientOfHeatTransfera1 (from GenericEN12975)First order heat loss coefficient
Reala2 (from GenericEN12975)Second order heat loss coefficient
Modelica.Units.SI.EfficiencyetaEle_zeroConversion factor/Efficiency at Q = 0 for electrical efficiency
RealmEleGradient of electrical efficiency linear approximation

Revisions

  • January 23, 2024 by Philipp Schmitz and Fabian Wuellhorst:
    First implementation. This is for issue 1451.