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Issue1451 add pvt model #1458

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Issue1451 add pvt model #1458

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1d8c6fc
Add new PVT models based of unofficial fork
Aug 17, 2023
7921a4f
Move one to multiple files
Aug 17, 2023
92b3efe
improved documentation
Philipp-Schmitz Aug 24, 2023
43d50b1
Merge branch 'development' into issue1451-add-pvt-model
FWuellhorst Sep 19, 2023
e7b2173
CI message from ebc-aixlib-bot. Push new files with corrected html Sy…
ebc-aixlib-bot Sep 19, 2023
4654bfe
Merge pull request #1454 from RWTH-EBC/correct_HTML_issue1451-add-pvt…
FWuellhorst Nov 6, 2023
8865da9
fixed style guide issues according to pull request review
Philipp-Schmitz Nov 16, 2023
be77523
fixed parameter description
Philipp-Schmitz Nov 16, 2023
8adf55c
Merge branch 'issue1451-add-pvt-model' of https://github.com/RWTH-EBC…
Philipp-Schmitz Dec 5, 2023
51747cb
Merge branch 'development' into issue1451-add-pvt-model
FWuellhorst Jan 16, 2024
3438fad
CI message from ebc-aixlib-bot. Push new files with corrected html Sy…
DaJansenGit Jan 16, 2024
2550c13
Merge pull request #1479 from RWTH-EBC/correct_HTML_issue1451-add-pvt…
FWuellhorst Jan 16, 2024
c6cff89
revert changes due to save of complete AixLib
FWuellhorst Jan 23, 2024
c42312a
add energyDynamics to PartialHeatGenerator.mo
FWuellhorst Jan 23, 2024
2211b5d
Rework model structure, use extend, use single record
FWuellhorst Jan 23, 2024
bcfc17e
restructure examples, add plot scripts for both
FWuellhorst Jan 23, 2024
a46d255
Update regression parameters due to bad values and add Unglazed.mo, c…
FWuellhorst Jan 23, 2024
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15 changes: 15 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/ElectricalGlazedPVTWithLowEmissionCoating.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record ElectricalGlazedPVTWithLowEmissionCoating
"elecrical properties of pvt module"
extends PhotovoltaicThermalBaseDataDefinitionElectrical(eta_zero = 0.11819, m = -0.5033);
annotation(Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span> </b></p>
<p>Derived from the simulated results of a glazed PVT Collector with low-emission coating from this <a href=\"https://www.researchgate.net/publication/327882787_Thermal_management_of_PVT_collectors_development_and_modelling_of_highly_efficient_glazed_flat_plate_PVT_collectors_with_low_emissivity_coatings_and_overheating_protection\">thesis</a> p.43 Figure 3.12.</p>
<p><b><span style=\"color: #008000;\">References</span> </b></p>
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<p>Record is used in model <a href=\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>. </p>
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<p>October 2013, Marcus Fuchs </p>
<ul>
<li>implemented </li>
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</ul>
</html>"));
end ElectricalGlazedPVTWithLowEmissionCoating;
15 changes: 15 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/ElectricalGlazedPVTWithoutLowEmissionCoating.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record ElectricalGlazedPVTWithoutLowEmissionCoating
"electrical properties of pvt module"
extends PhotovoltaicThermalBaseDataDefinitionElectrical(eta_zero = 0.8, m=-0.5378);
annotation(Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span> </b></p>
<p>Derived from the simulated results of a glazed PVT Collector without low-emission coating from this <a href=\"https://www.researchgate.net/publication/327882787_Thermal_management_of_PVT_collectors_development_and_modelling_of_highly_efficient_glazed_flat_plate_PVT_collectors_with_low_emissivity_coatings_and_overheating_protection\">thesis</a> p.43 Figure 3.12.</p>
<p><b><span style=\"color: #008000;\">References</span> </b></p>
<p>Record is used in model <a href=\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>. </p>
<p>October 2013, Marcus Fuchs </p>
<ul>
<li>implemented </li>
</ul>
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</html>"));
end ElectricalGlazedPVTWithoutLowEmissionCoating;
39 changes: 39 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/PhotovoltaicThermalBaseDataDefinitionElectrical.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record PhotovoltaicThermalBaseDataDefinitionElectrical
"Base Data Definition for the electrical part of a photovoltaic thermal collector"
extends Modelica.Icons.Record;
parameter Modelica.Units.SI.Efficiency eta_zero(max=1)
"Conversion factor/Efficiency at Q = 0";
parameter Real m(unit = "W/(m.m.K)") "gradient of linear approximation";
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annotation(Documentation(revisions="<html><ul>
<li>
<i>October 25, 2016</i> by Philipp Mehrfeld:<br/>
correct units
</li>
<li>
<i>April 2014</i>, Mark Wesseling:<br/>
corrected Units
</li>
<li>
<i>October 2013</i>, Marcus Fuchs:<br/>
implemented
</li>
</ul>
</html>", info="<html>
<h4>
<span style=\"color:#008000\">Overview</span>
</h4>
<p>
This base record defines the values conversion factor and loss
coefficients for solar thermal collectors.
</p>
<h4>
<span style=\"color:#008000\">References</span>
</h4>
<p>
Base data definition for record to be used in model <a href=
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\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>.
</p>
</html>"));
end PhotovoltaicThermalBaseDataDefinitionElectrical;
39 changes: 39 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/SolarThermalBaseDataDefinition.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record SolarThermalBaseDataDefinition
"Base Data Definition for Solar thermal collectors"
extends Modelica.Icons.Record;
parameter Modelica.Units.SI.Efficiency eta_zero(max=1)
"Conversion factor/Efficiency at Q = 0";
parameter Real c1(unit = "W/(m.m.K)") "Loss coefficient c1";
parameter Real c2(unit = "W/(m.m.K.K)") "Loss coefficient c2";
annotation(Documentation(revisions="<html><ul>
<li>
<i>October 25, 2016</i> by Philipp Mehrfeld:<br/>
correct units
</li>
<li>
<i>April 2014</i>, Mark Wesseling:<br/>
corrected Units
</li>
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Why is this file added now?

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Ah ok, it was copied from SolarThermal. Does it differ in any way from the other record? If not, we don't need this here.

<li>
<i>October 2013</i>, Marcus Fuchs:<br/>
implemented
</li>
</ul>
</html>", info="<html>
<h4>
<span style=\"color:#008000\">Overview</span>
</h4>
<p>
This base record defines the values conversion factor and loss
coefficients for solar thermal collectors.
</p>
<h4>
<span style=\"color:#008000\">References</span>
</h4>
<p>
Base data definition for record to be used in model <a href=
\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>.
</p>
</html>"));
end SolarThermalBaseDataDefinition;
11 changes: 11 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/ThermalGlazedPVTWithLowEmissionCoating.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record ThermalGlazedPVTWithLowEmissionCoating
"thermal properties of pvt module"
extends SolarThermalBaseDataDefinition(eta_zero = 0.66091, c1 = 3.824, c2 = 0.0211);
annotation(Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span> </b></p>
<p>Derived from the simulated results of a glazed PVT Collector with low-emission coating from this <a href=\"https://www.researchgate.net/publication/327882787_Thermal_management_of_PVT_collectors_development_and_modelling_of_highly_efficient_glazed_flat_plate_PVT_collectors_with_low_emissivity_coatings_and_overheating_protection\">thesis</a> p.43 Figure 3.12.</p>
<p><b><span style=\"color: #008000;\">References</span> </b></p>
<p>Record is used in model <a href=\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>. </p>
</html>"));
end ThermalGlazedPVTWithLowEmissionCoating;
11 changes: 11 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/ThermalGlazedPVTWithoutLowEmissionCoating.mo
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within AixLib.DataBase.PhotovoltaicThermal;
record ThermalGlazedPVTWithoutLowEmissionCoating
"thermal properties of pvt module"
extends SolarThermalBaseDataDefinition(eta_zero = 0.65458, c1 = 6.6356, c2 = 0.0235);
annotation(Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span> </b></p>
<p>Derived from the simulated results of a glazed PVT Collector without low-emission coating from this <a href=\"https://www.researchgate.net/publication/327882787_Thermal_management_of_PVT_collectors_development_and_modelling_of_highly_efficient_glazed_flat_plate_PVT_collectors_with_low_emissivity_coatings_and_overheating_protection\">thesis</a> p.43 Figure 3.12.</p>
<p><b><span style=\"color: #008000;\">References</span> </b></p>
<p>Record is used in model <a href=\"AixLib.Fluid.Solar.Thermal.SolarThermal\">AixLib.Fluid.Solar.Thermal.SolarThermal</a>. </p>
</html>"));
end ThermalGlazedPVTWithoutLowEmissionCoating;
10 changes: 10 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/package.mo
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within AixLib.DataBase;
package PhotovoltaicThermal "Properties for efficiency of photovoltaic thermal modules"
extends Modelica.Icons.Package;






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end PhotovoltaicThermal;
6 changes: 6 additions & 0 deletions AixLib/DataBase/PhotovoltaicThermal/package.order
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SolarThermalBaseDataDefinition
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PhotovoltaicThermalBaseDataDefinitionElectrical
ThermalGlazedPVTWithLowEmissionCoating
ThermalGlazedPVTWithoutLowEmissionCoating
ElectricalGlazedPVTWithLowEmissionCoating
ElectricalGlazedPVTWithoutLowEmissionCoating
1 change: 1 addition & 0 deletions AixLib/DataBase/package.order
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Expand Up @@ -4,6 +4,7 @@ CHP
Chiller
HeatPump
Media
PhotovoltaicThermal
Pipes
Pools
Profiles
Expand Down
78 changes: 78 additions & 0 deletions AixLib/Fluid/Solar/Thermal/BaseClasses/PVT_SolarThermalEfficiency.mo
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within AixLib.Fluid.Solar.Thermal.BaseClasses;
model PVT_SolarThermalEfficiency
"Calculates the efficiency of a thermal component of pvt"
parameter AixLib.DataBase.PhotovoltaicThermal.SolarThermalBaseDataDefinition
Collector=AixLib.DataBase.PhotovoltaicThermal.PVT_thermal()
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Is this the same model as the existing model? If so, do we really need it?

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I created the extra model, because i did not want to mix the new thermal properties of the pvt model with the existing solar thermal paramters. This way when working with the pvt model, only the right kind of parameters are possible to select.

"Thermal properties of Photovoltaic thermal Collector" annotation (choicesAllMatching=true);
Modelica.Blocks.Interfaces.RealInput T_air(
quantity="ThermodynamicTemperature",
unit="K",
displayUnit="degC") "Air temperature" annotation (Placement(transformation(
extent={{-20,-20},{20,20}},
rotation=270,
origin={-50,106})));
Modelica.Blocks.Interfaces.RealInput G(quantity="Irradiance", unit="W/m2")
"Global solar irradiation in W/m2" annotation (Placement(transformation(
extent={{-20,-20},{20,20}},
rotation=270,
origin={10,106})));
Modelica.Blocks.Interfaces.RealInput T_col(
quantity="ThermodynamicTemperature",
unit="K",
displayUnit="degC") "Collector temperature" annotation (Placement(
transformation(
extent={{-20,-20},{20,20}},
rotation=90,
origin={-50,-106})));
Modelica.Blocks.Interfaces.RealOutput Q_flow(quantity="HeatFlux", unit="W/m2")
"Useful heat flow from solar collector in W/m2"
annotation (Placement(transformation(extent={{98,-10},{118,10}})));
protected
Modelica.Units.SI.Efficiency eta(max=Collector.eta_zero)
"Efficiency of solar thermal collector";
Modelica.Units.SI.TemperatureDifference dT
"Temperature difference between collector and air in K";
equation
dT = T_col - T_air;
eta = max(0,
min(Collector.eta_zero,
Collector.eta_zero - Collector.c1*dT/max(G,
Modelica.Constants.eps) -
Collector.c2*dT*dT/max(G, Modelica.Constants.eps)));
Q_flow = G*eta;
annotation (Documentation(info="<html><h4>
<span style=\"color:#008000\">Overview</span>
</h4>
<p>
Model for the efficiency of a solar thermal collector. Inputs are
outdoor air temperature, fluid temperature and solar irradiation.
Based on these values and the collector properties from database,
this model calculates the heat flow to the fluid circuit. We assume
that the fluid temperature is equal to the collector temperature.
</p>
<ul>
<li>
<i>Febraury 7, 2018</i> by Peter Matthes:<br/>
Adds quatity information to RealInputs and RealOutputs.
</li>
<li>
<i>February 1, 2018&#160;</i> by Philipp Mehrfeld:<br/>
eta must be between 0 and eta_zero optical efficiency
</li>
<li>
<i>October 25, 2017</i> by Philipp Mehrfeld:<br/>
Limit eta to 0 and eta_zero.<br/>
Add correct units.<br/>
Avoid dividing by G=0.
</li>
<li>
<i>December 15, 2016&#160;</i> by Moritz Lauster:<br/>
moved
</li>
<li>
<i>November 11, 2013&#160;</i> by Marcus Fuchs:<br/>
implemented
</li>
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</ul>
</html>"));
end PVT_SolarThermalEfficiency;
46 changes: 46 additions & 0 deletions AixLib/Fluid/Solar/Thermal/BaseClasses/SolarElectricalEfficiency.mo
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within AixLib.Fluid.Solar.Thermal.BaseClasses;
model SolarElectricalEfficiency
"simplified calculation for the electrical efficiency of a photovoltaic thermal collector"
parameter AixLib.DataBase.PhotovoltaicThermal.PhotovoltaicThermalBaseDataDefinitionElectrical
Collector=AixLib.DataBase.PhotovoltaicThermal.ElectricalGlazedPVTWithLowEmissionCoating()
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"Electrical properties of Photovoltaic thermal Collector" annotation (choicesAllMatching=true);
Modelica.Blocks.Interfaces.RealInput T_air(
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quantity="ThermodynamicTemperature",
unit="K",
displayUnit="degC") "Air temperature" annotation (Placement(transformation(
extent={{-20,-20},{20,20}},
rotation=270,
origin={-50,106})));
Modelica.Blocks.Interfaces.RealInput G(quantity="Irradiance", unit="W/m2")
"Global solar irradiation in W/m2" annotation (Placement(transformation(
extent={{-20,-20},{20,20}},
rotation=270,
origin={10,106})));
Modelica.Blocks.Interfaces.RealInput T_col(
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quantity="ThermodynamicTemperature",
unit="K",
displayUnit="degC") "Collector temperature" annotation (Placement(
transformation(
extent={{-20,-20},{20,20}},
rotation=90,
origin={-50,-106})));
Modelica.Blocks.Interfaces.RealOutput P_el(quantity="ElectricPower", unit="W/m2")
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"Useful electric power output from solar collector in W/m2"
annotation (Placement(transformation(extent={{98,-10},{118,10}})));
protected
Modelica.Units.SI.Efficiency eta(max=Collector.eta_zero)
"Efficiency of electricity generation of pvt collector";
Modelica.Units.SI.TemperatureDifference dT
"Temperature difference between collector and air in K";
equation
dT = T_col - T_air;
eta = max(0,
min(Collector.eta_zero,
Collector.eta_zero + Collector.m*dT/max(G,
Modelica.Constants.eps)));
P_el = G*eta;
annotation (Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span> </b></p>
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<p>Simplified Model for the electrical efficiency of a photovoltaic thermal collector. Inputs are outdoor air temperature, fluid temperature and solar irradiation. Based on these values and the collector properties from database, this model calculates the electrical power output of the collector. We assume that the fluid temperature is equal to the collector temperature. </p>
</html>"));
end SolarElectricalEfficiency;
2 changes: 2 additions & 0 deletions AixLib/Fluid/Solar/Thermal/BaseClasses/package.order
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@@ -1 +1,3 @@
SolarThermalEfficiency
SolarElectricalEfficiency
PVT_SolarThermalEfficiency
89 changes: 89 additions & 0 deletions AixLib/Fluid/Solar/Thermal/Examples/PhotovoltaicThermalCollector.mo
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within AixLib.Fluid.Solar.Thermal.Examples;
model PhotovoltaicThermalCollector
"Example to demonstrate the function of the photovoltaic thermal collector model"
extends Modelica.Icons.Example;

replaceable package Medium = AixLib.Media.Water constrainedby
Modelica.Media.Interfaces.PartialMedium "Medium model";

Sources.Boundary_pT source(
nPorts=1,
redeclare package Medium = Medium,
p=system.p_ambient + pVT_Modul.pressureDropCoeff*(pVT_Modul.m_flow_nominal/
995)^2 + pipe.dp_nominal)
annotation (Placement(transformation(extent={{-80,-10},{-60,10}})));
Sources.Boundary_pT sink(nPorts=1, redeclare package Medium =
Medium,
p=system.p_ambient)
annotation (Placement(transformation(extent={{100,-10},{80,10}})));
AixLib.Fluid.Sensors.MassFlowRate massFlowSensor(redeclare package Medium =
Medium)
annotation (Placement(transformation(extent={{-54,-10},{-34,10}})));
AixLib.Fluid.Sensors.TemperatureTwoPort T1(redeclare package Medium = Medium,
m_flow_nominal=system.m_flow_nominal)
annotation (Placement(transformation(extent={{-28,-10},{-8,10}})));
AixLib.Fluid.FixedResistances.PressureDrop pipe(
redeclare package Medium = Medium,
m_flow_nominal=system.m_flow_nominal,
dp_nominal=200)
annotation (Placement(transformation(extent={{54,-10},{74,10}})));
AixLib.Fluid.Sensors.TemperatureTwoPort T2(redeclare package Medium = Medium,
m_flow_nominal=system.m_flow_nominal)
annotation (Placement(transformation(extent={{28,-10},{48,10}})));
Modelica.Blocks.Sources.CombiTimeTable hotSummerDay(
extrapolation=Modelica.Blocks.Types.Extrapolation.Periodic,
table=[0,21,0; 3600,20.6,0; 7200,20.5,0; 10800,20.4,0; 14400,20,6; 18000,20.5,
106; 21600,22.4,251; 25200,24.1,402; 28800,26.3,540; 32400,28.4,657; 36000,
30,739; 39600,31.5,777; 43200,31.5,778; 46800,32.5,737; 50400,32.5,657;
54000,32.5,544; 57600,32.5,407; 61200,32.5,257; 64800,31.6,60; 68400,30.8,
5; 72000,22.9,0; 75600,21.2,0; 79200,20.6,0; 82800,20.3,0],
offset={273.15,0.01})
annotation (Placement(transformation(extent={{-26,62},{-6,82}})));
inner Modelica.Fluid.System system(
T_ambient=298.15,
m_flow_start=system.m_flow_nominal,
use_eps_Re=true,
m_flow_nominal=1.5*pVT_Modul.A/60*995/1000,
p_ambient=300000)
annotation (Placement(transformation(extent={{-90,70},{-70,90}})));
AixLib.Fluid.Solar.Thermal.PhotovoltaicThermal pVT_Modul(
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redeclare package Medium = AixLib.Media.Water,
m_flow_nominal=system.m_flow_nominal,
A=2,
volPip=0.05,
Collector=AixLib.DataBase.SolarThermal.AirCollector(),
pVT_SolarThermalEfficiency(Collector=
AixLib.DataBase.PhotovoltaicThermal.ThermalGlazedPVTWithLowEmissionCoating()),
solarElectricalEfficiency(Collector=
AixLib.DataBase.PhotovoltaicThermal.ElectricalGlazedPVTWithLowEmissionCoating()))
annotation (Placement(transformation(extent={{-4,-10},{20,12}})));
equation
connect(massFlowSensor.port_b, T1.port_a)
annotation (Line(points={{-34,0},{-28,0}}, color={0,127,255}));
connect(T2.port_b, pipe.port_a)
annotation (Line(points={{48,0},{54,0}}, color={0,127,255}));
connect(source.ports[1], massFlowSensor.port_a)
annotation (Line(points={{-60,0},{-54,0}}, color={0,127,255}));
connect(pipe.port_b, sink.ports[1])
annotation (Line(points={{74,0},{80,0}}, color={0,127,255}));
connect(T1.port_b, pVT_Modul.port_a)
annotation (Line(points={{-8,0},{-6,0},{-6,1},{-4,1}},
color={0,127,255}));
connect(T2.port_a, pVT_Modul.port_b)
annotation (Line(points={{28,0},{24,0},{24,1},{20,1}},
color={0,127,255}));
connect(hotSummerDay.y[1], pVT_Modul.T_air)
annotation (Line(points={{-5,72},{0.8,72},{0.8,12}},
color={0,0,127}));
connect(hotSummerDay.y[2], pVT_Modul.Irradiation)
annotation (Line(points={{-5,72},{8,72},{8,12}}, color={0,0,127}));
annotation (
experiment(StopTime=82600, Interval=3600),
__Dymola_experimentSetupOutput(events=false),
Documentation(info="<html>
<p><b><span style=\"color: #008000;\">Overview</span></b> </p>
<p>This test demonstrates the photovoltaic thermal collector model. Different types of collectors can be tested at fixed boundary conditions. </p>
</html>"),
__Dymola_Commands(file(ensureSimulated=true)=
"Resources/Scripts/Dymola/Fluid/Solar/Thermal/Examples/SolarThermalCollector.mos"));
end PhotovoltaicThermalCollector;
1 change: 1 addition & 0 deletions AixLib/Fluid/Solar/Thermal/Examples/package.order
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SolarThermalCollector
PhotovoltaicThermalCollector