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Issue1073 n panels
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138 changes: 138 additions & 0 deletions
138
Buildings/Fluid/SolarCollectors/Validation/EN12975NPanels.mo
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| within Buildings.Fluid.SolarCollectors.Validation; | ||
| model EN12975NPanels | ||
| "Validation model for collector according to EN12975 with different settings for nPanel" | ||
| extends Modelica.Icons.Example; | ||
| replaceable package Medium = Buildings.Media.Water "Medium in the system"; | ||
|
|
||
| parameter Integer nPanels=10 "Number of panels"; | ||
|
|
||
| Buildings.Fluid.SolarCollectors.EN12975 solCol( | ||
| redeclare package Medium = Medium, | ||
| per=datSolCol, | ||
| shaCoe=0, | ||
| azi=0, | ||
| energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial, | ||
| rho=0.2, | ||
| nColType=Buildings.Fluid.SolarCollectors.Types.NumberSelection.Number, | ||
| nPanels=1, | ||
| nSeg=30, | ||
| lat=0.6457718232379, | ||
| til=0.78539816339745) | ||
| "Flat plate solar collector model, has been modified for validation purposes" | ||
| annotation (Placement(transformation(extent={{20,20},{40,40}}))); | ||
|
|
||
| Buildings.BoundaryConditions.WeatherData.ReaderTMY3 weaDat(filNam= | ||
| "modelica://Buildings/Resources/weatherdata/USA_CA_San.Francisco.Intl.AP.724940_TMY3.mos") | ||
| "Weather data file reader" | ||
| annotation (Placement(transformation(extent={{-40,60},{-20,80}}))); | ||
| Buildings.Fluid.Sources.Boundary_pT sou( | ||
| redeclare package Medium = Medium, | ||
| use_p_in=false, | ||
| p(displayUnit="Pa") = 101325, | ||
| nPorts=1) "Outlet for water flow" | ||
| annotation (Placement(transformation(extent={{80,20},{60,40}}))); | ||
| Buildings.Fluid.Sources.MassFlowSource_T bou( | ||
| nPorts=1, | ||
| redeclare package Medium = Medium, | ||
| use_m_flow_in=true, | ||
| use_T_in=false, | ||
| T=303.15) "Inlet for water flow, at a prescribed flow rate and temperature" | ||
| annotation (Placement(transformation(extent={{-12,20},{8,40}}))); | ||
|
|
||
| Buildings.Fluid.SolarCollectors.EN12975 solCol1( | ||
| redeclare package Medium = Medium, | ||
| per=datSolCol, | ||
| shaCoe=0, | ||
| azi=0, | ||
| energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial, | ||
| rho=0.2, | ||
| nColType=Buildings.Fluid.SolarCollectors.Types.NumberSelection.Number, | ||
| nSeg=30, | ||
| lat=0.6457718232379, | ||
| til=0.78539816339745, | ||
| nPanels=nPanels) | ||
| "Flat plate solar collector model, has been modified for validation purposes" | ||
| annotation (Placement(transformation(extent={{20,-40},{40,-20}}))); | ||
| Buildings.Fluid.Sources.Boundary_pT sou1( | ||
| redeclare package Medium = Medium, | ||
| use_p_in=false, | ||
| p(displayUnit="Pa") = 101325, | ||
| nPorts=1) "Outlet for water flow" | ||
| annotation (Placement(transformation(extent={{80,-40},{60,-20}}))); | ||
| Buildings.Fluid.Sources.MassFlowSource_T bou1( | ||
| nPorts=1, | ||
| redeclare package Medium = Medium, | ||
| use_m_flow_in=true, | ||
| use_T_in=false, | ||
| T=303.15) "Inlet for water flow, at a prescribed flow rate and temperature" | ||
| annotation (Placement(transformation(extent={{-12,-40},{8,-20}}))); | ||
| Modelica.Blocks.Math.Gain gaiNPan(k=nPanels) "Gain for number of panels" | ||
| annotation (Placement(transformation(extent={{-52,-32},{-32,-12}}))); | ||
| Modelica.Blocks.Sources.RealExpression difHeaGai(y=solCol.heaGai[30].Q_flow | ||
| - solCol1.heaGai[30].Q_flow/nPanels) | ||
| "Difference in heat gain at last panel between model with 1 and with 30 panels" | ||
| annotation (Placement(transformation(extent={{-68,-72},{-48,-52}}))); | ||
| Modelica.Blocks.Sources.RealExpression difHeaLos(y=solCol.QLos[30].Q_flow - | ||
| solCol1.QLos[30].Q_flow/nPanels) | ||
| "Difference in heat loss at last panel between model with 1 and with 30 panels" | ||
| annotation (Placement(transformation(extent={{-68,-92},{-48,-72}}))); | ||
| Modelica.Blocks.Sources.Constant m_flow_nominal(k=datSolCol.A*datSolCol.mperA_flow_nominal) | ||
| "Nominal flow rate for one panel" | ||
| annotation (Placement(transformation(extent={{-88,30},{-68,50}}))); | ||
| parameter Data.Concentrating.C_VerificationModel datSolCol | ||
| annotation (Placement(transformation(extent={{60,60},{80,80}}))); | ||
| equation | ||
| connect(weaDat.weaBus, solCol1.weaBus) annotation (Line( | ||
| points={{-20,70},{14,70},{14,-20},{20,-20},{20,-20.4}}, | ||
| color={255,204,51}, | ||
| thickness=0.5, | ||
| smooth=Smooth.None)); | ||
| connect(bou1.ports[1], solCol1.port_a) annotation (Line( | ||
| points={{8,-30},{20,-30}}, | ||
| color={0,127,255}, | ||
| smooth=Smooth.None)); | ||
| connect(sou1.ports[1], solCol1.port_b) annotation (Line( | ||
| points={{60,-30},{40,-30}}, | ||
| color={0,127,255}, | ||
| smooth=Smooth.None)); | ||
| connect(gaiNPan.y, bou1.m_flow_in) | ||
| annotation (Line(points={{-31,-22},{-12,-22}}, color={0,0,127})); | ||
| connect(solCol.port_a, bou.ports[1]) | ||
| annotation (Line(points={{20,30},{8,30}}, color={0,127,255})); | ||
| connect(solCol.port_b, sou.ports[1]) | ||
| annotation (Line(points={{40,30},{60,30}}, color={0,127,255})); | ||
| connect(solCol.weaBus, weaDat.weaBus) annotation (Line( | ||
| points={{20,39.6},{18,39.6},{18,40},{14,40},{14,70},{-20,70}}, | ||
| color={255,204,51}, | ||
| thickness=0.5)); | ||
| connect(m_flow_nominal.y, bou.m_flow_in) annotation (Line(points={{-67,40},{-22, | ||
| 40},{-22,38},{-12,38}}, color={0,0,127})); | ||
| connect(gaiNPan.u, m_flow_nominal.y) annotation (Line(points={{-54,-22},{-60, | ||
| -22},{-60,40},{-67,40}}, color={0,0,127})); | ||
| annotation ( | ||
| Documentation(info="<html> | ||
| <p> | ||
| This model validates the solar collector model | ||
| <a href=\"modelica://Buildings.Fluid.SolarCollectors.EN12975\"> | ||
| Buildings.Fluid.SolarCollectors.EN12975</a> | ||
| for the case | ||
| where the number of panels is <i>1</i> for the instance <code>solCol</code> | ||
| and <i>10</i> for the instance <code>solCol1</code>. | ||
| The instances <code>difHeaGai</code> and <code>difHeaLos</code> | ||
| compare the heat gain and heat loss between the two models. | ||
| The output of these blocks should be zero, except for rounding errors. | ||
| </p> | ||
| </html>", revisions="<html> | ||
| <ul> | ||
| <li> | ||
| November 21, 2017, by Michael Wetter:<br/> | ||
| First implementation to validate | ||
| <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/1073\">#1073</a>. | ||
| </li> | ||
| </ul> | ||
| </html>"), | ||
| __Dymola_Commands(file= | ||
| "modelica://Buildings/Resources/Scripts/Dymola/Fluid/SolarCollectors/Validation/EN12975NPanels.mos" | ||
| "Simulate and plot"), | ||
| experiment(Tolerance=1e-6, StopTime=86400)); | ||
| end EN12975NPanels; |
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