Ibpsa1880 mover efficiency fix and validation rework (#3834)

* corrected efficiency equations if total power or eta provided sed -i 's/Added nominal curve specification to suppress warning./Specified <code>nominalValuesDefineDefaultPressureCurve=true<\/code>\nin the mover component to suppress a warning./g' $(find . -iname '*.mo') * added repleaceable keyword to suppress optimica warning --------- Co-authored-by: Michael Wetter <[email protected]>
lbl-srg · Jul 6, 2024 · 2cf523e · 2cf523e
1 parent 745315e
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diff --git a/Buildings/.copiedFiles.txt b/Buildings/.copiedFiles.txt
@@ -1800,18 +1800,19 @@ Buildings/Fluid/Movers/Preconfigured/package.mo
 Buildings/Fluid/Movers/Preconfigured/package.order
 Buildings/Fluid/Movers/SpeedControlled_y.mo
 Buildings/Fluid/Movers/UsersGuide.mo
+Buildings/Fluid/Movers/Validation/BaseClasses/ComparePower.mo
 Buildings/Fluid/Movers/Validation/BaseClasses/ControlledFlowMachine.mo
 Buildings/Fluid/Movers/Validation/BaseClasses/FlowMachine_ZeroFlow.mo
 Buildings/Fluid/Movers/Validation/BaseClasses/package.mo
 Buildings/Fluid/Movers/Validation/BaseClasses/package.order
+Buildings/Fluid/Movers/Validation/ComparePowerHydraulic.mo
+Buildings/Fluid/Movers/Validation/ComparePowerInput.mo
+Buildings/Fluid/Movers/Validation/ComparePowerTotal.mo
 Buildings/Fluid/Movers/Validation/ControlledFlowMachine.mo
 Buildings/Fluid/Movers/Validation/ControlledFlowMachineDynamic.mo
 Buildings/Fluid/Movers/Validation/FlowControlled_dp.mo
 Buildings/Fluid/Movers/Validation/FlowControlled_dpSystem.mo
 Buildings/Fluid/Movers/Validation/FlowControlled_m_flow.mo
-Buildings/Fluid/Movers/Validation/PowerEuler.mo
-Buildings/Fluid/Movers/Validation/PowerExact.mo
-Buildings/Fluid/Movers/Validation/PowerSimplified.mo
 Buildings/Fluid/Movers/Validation/PressureCurve.mo
 Buildings/Fluid/Movers/Validation/PumpCurveConstruction.mo
 Buildings/Fluid/Movers/Validation/PumpCurveDerivatives.mo
@@ -2357,12 +2358,6 @@ Buildings/Resources/Images/Fluid/Movers/Examples/Supply.png
 Buildings/Resources/Images/Fluid/Movers/UsersGuide/2013-IBPSA-Wetter.pdf
 Buildings/Resources/Images/Fluid/Movers/UsersGuide/fanSpeedFiltered.png
 Buildings/Resources/Images/Fluid/Movers/UsersGuide/pumpCurve.png
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerEuler.png
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerEuler.svg
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerExact.png
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerExact.svg
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerSimplified.png
-Buildings/Resources/Images/Fluid/Movers/Validation/PowerSimplified.svg
 Buildings/Resources/Images/Fluid/Movers/Validation/PumpValidationHead.png
 Buildings/Resources/Images/Fluid/Movers/Validation/PumpValidationPower.png
 Buildings/Resources/Images/Fluid/Sensors/onePortHex.png
@@ -2932,14 +2927,14 @@ Buildings/Resources/Scripts/Dymola/Fluid/Movers/Examples/PumpsSeries.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Examples/SpeedControlled_y_pumpCurves.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Examples/StaticReset.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Preconfigured/Validation/ControlledFlowMachinePreconfigured.mos
+Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/ComparePowerHydraulic.mos
+Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/ComparePowerInput.mos
+Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/ComparePowerTotal.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/ControlledFlowMachine.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/ControlledFlowMachineDynamic.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/FlowControlled_dp.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/FlowControlled_dpSystem.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/FlowControlled_m_flow.mos
-Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PowerEuler.mos
-Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PowerExact.mos
-Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PowerSimplified.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PressureCurve.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PumpCurveConstruction.mos
 Buildings/Resources/Scripts/Dymola/Fluid/Movers/Validation/PumpCurveDerivatives.mos

diff --git a/Buildings/BoundaryConditions/WeatherData/Bus.mo b/Buildings/BoundaryConditions/WeatherData/Bus.mo
@@ -2,8 +2,8 @@ within Buildings.BoundaryConditions.WeatherData;
 expandable connector Bus "Data bus that stores weather data"
   extends Modelica.Icons.SignalBus;
 
-  Modelica.Units.SI.Temperature TDryBul "Dry bulb temperature";
-  Modelica.Units.SI.Temperature TWetBul "Wet bulb temperature";
+  Modelica.Units.SI.Temperature TDryBul(start=293.15) "Dry bulb temperature";
+  Modelica.Units.SI.Temperature TWetBul(start=293.15) "Wet bulb temperature";
   Modelica.Units.SI.Temperature TDewPoi "Dew point temperature";
   Modelica.Units.SI.Temperature TBlaSky "Black-body sky temperature";
 
@@ -50,6 +50,12 @@ This component is an expandable connector that is used to implement a bus that c
 </html>", revisions="<html>
 <ul>
 <li>
+June 18, 2024, by Michael Wetter:<br/>
+Added <code>start</code> and <code>nominal</code> attributes
+to avoid warnings in OpenModelica due to conflicting values.<br/>
+This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1890\">IBPSA, #1890</a>.
+</li>
+<li>
 September 22, 2023, by Michael Wetter:<br/>
 Declared the variables that are on the bus.<br/>
 This is for <a href=\"https://github.com/ibpsa/modelica-ibpsa/issues/1798\">IBPSA, #1798</a>.

diff --git a/Buildings/Examples/ChillerPlant/BaseClasses/Controls/Examples/ChillerSetPointControl.mo b/Buildings/Examples/ChillerPlant/BaseClasses/Controls/Examples/ChillerSetPointControl.mo
@@ -78,6 +78,7 @@ model ChillerSetPointControl
         MediumAir, m_flow_nominal=999)
     annotation (Placement(transformation(extent={{0,-70},{20,-50}})));
   Buildings.Fluid.Movers.FlowControlled_m_flow pum(
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=1.2*mCHW_flow_nominal,
     dp(start=40474),
     redeclare package Medium = Medium2,
@@ -214,6 +215,13 @@ equation
     Documentation(revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 August 16, 2019, by Michael Wetter:<br/>
 Changed initialization of PI controller for Dymola 2020.
 </li>

diff --git a/Buildings/Examples/Tutorial/Boiler/System2.mo b/Buildings/Examples/Tutorial/Boiler/System2.mo
@@ -84,6 +84,7 @@ model System2
 Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -389,6 +390,13 @@ could have been used.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 6, 2017, by Michael Wetter:<br/>
 Added missing density to computation of air mass flow rate.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/673\">#673</a>.

diff --git a/Buildings/Examples/Tutorial/Boiler/System3.mo b/Buildings/Examples/Tutorial/Boiler/System3.mo
@@ -83,6 +83,7 @@ model System3
   Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -140,9 +141,10 @@ model System3
 //----------------------------------------------------------------------------//
 
   Buildings.Fluid.Movers.FlowControlled_m_flow pumBoi(
-      redeclare package Medium = MediumW,
-      energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
-      m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
+    redeclare package Medium = MediumW,
+    energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
+    m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
                         annotation (Placement(transformation(
         extent={{-10,-10},{10,10}},
         rotation=90,
@@ -576,6 +578,13 @@ this indicates that the model is correct.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 6, 2017, by Michael Wetter:<br/>
 Added missing density to computation of air mass flow rate.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/673\">#673</a>.

diff --git a/Buildings/Examples/Tutorial/Boiler/System4.mo b/Buildings/Examples/Tutorial/Boiler/System4.mo
@@ -83,6 +83,7 @@ model System4
   Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -140,9 +141,10 @@ model System4
 //----------------------------------------------------------------------------//
 
   Buildings.Fluid.Movers.FlowControlled_m_flow pumBoi(
-      redeclare package Medium = MediumW,
-      energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
-      m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
+    redeclare package Medium = MediumW,
+    energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
+    m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
                         annotation (Placement(transformation(
         extent={{-10,-10},{10,10}},
         rotation=90,
@@ -534,6 +536,13 @@ Buildings.Examples.Tutorial.Boiler.System5</a>.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 6, 2017, by Michael Wetter:<br/>
 Added missing density to computation of air mass flow rate.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/673\">#673</a>.

diff --git a/Buildings/Examples/Tutorial/Boiler/System5.mo b/Buildings/Examples/Tutorial/Boiler/System5.mo
@@ -83,6 +83,7 @@ model System5
   Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -140,9 +141,10 @@ model System5
 //----------------------------------------------------------------------------//
 
   Buildings.Fluid.Movers.FlowControlled_m_flow pumBoi(
-      redeclare package Medium = MediumW,
-      energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
-      m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
+    redeclare package Medium = MediumW,
+    energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
+    m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
                         annotation (Placement(transformation(
         extent={{-10,-10},{10,10}},
         rotation=90,
@@ -601,6 +603,13 @@ Buildings.Examples.Tutorial.Boiler.System4</a>.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 6, 2017, by Michael Wetter:<br/>
 Added missing density to computation of air mass flow rate.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/673\">#673</a>.

diff --git a/Buildings/Examples/Tutorial/Boiler/System6.mo b/Buildings/Examples/Tutorial/Boiler/System6.mo
@@ -78,6 +78,7 @@ model System6
   Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -135,9 +136,10 @@ model System6
 //----------------------------------------------------------------------------//
 
   Buildings.Fluid.Movers.FlowControlled_m_flow pumBoi(
-      redeclare package Medium = MediumW,
-      energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
-      m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
+    redeclare package Medium = MediumW,
+    energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
+    m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
                         annotation (Placement(transformation(
         extent={{-10,-10},{10,10}},
         rotation=90,
@@ -589,6 +591,13 @@ maintained at their set point.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 6, 2017, by Michael Wetter:<br/>
 Added missing density to computation of air mass flow rate.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/673\">#673</a>.

diff --git a/Buildings/Examples/Tutorial/Boiler/System7.mo b/Buildings/Examples/Tutorial/Boiler/System7.mo
@@ -78,6 +78,7 @@ model System7
   Buildings.Fluid.Movers.FlowControlled_m_flow pumRad(
     redeclare package Medium = MediumW,
     energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mRad_flow_nominal) "Pump for radiator"
       annotation (Placement(transformation(
       extent={{-10,-10},{10,10}},
@@ -135,9 +136,10 @@ model System7
 //----------------------------------------------------------------------------//
 
   Buildings.Fluid.Movers.FlowControlled_m_flow pumBoi(
-      redeclare package Medium = MediumW,
-      energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
-      m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
+    redeclare package Medium = MediumW,
+    energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
+    nominalValuesDefineDefaultPressureCurve=true,
+    m_flow_nominal=mBoi_flow_nominal) "Pump for boiler"
                         annotation (Placement(transformation(
         extent={{-10,-10},{10,10}},
         rotation=90,
@@ -663,6 +665,13 @@ response shown below should be seen.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 February 15, 2022, by Michael Wetter:<br/>
 Changed block downstream of <code>greThrTRoo</code> from <code>and</code> to <code>or</code> block.
 This ensures that the system is off when the outdoor air or room air is sufficiently warm.

diff --git a/Buildings/Examples/Tutorial/SpaceCooling/System2.mo b/Buildings/Examples/Tutorial/SpaceCooling/System2.mo
@@ -70,6 +70,7 @@ model System2
     annotation (Placement(transformation(extent={{20,70},{40,90}})));
   Buildings.Fluid.Movers.FlowControlled_m_flow fan(
     redeclare package Medium = MediumA,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mA_flow_nominal,
     energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState) "Supply air fan"
     annotation (Placement(transformation(extent={{40,-30},{60,-10}})));
@@ -525,6 +526,13 @@ from the model.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 September 20, 2021 by David Blum:<br/>
 Correct supply and return water parameterization.<br/>
 Use design conditions for UA parameterization in cooling coil.<br/>

diff --git a/Buildings/Examples/Tutorial/SpaceCooling/System3.mo b/Buildings/Examples/Tutorial/SpaceCooling/System3.mo
@@ -70,6 +70,7 @@ model System3
     annotation (Placement(transformation(extent={{20,70},{40,90}})));
   Buildings.Fluid.Movers.FlowControlled_m_flow fan(
     redeclare package Medium = MediumA,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=mA_flow_nominal,
     energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState) "Supply air fan"
     annotation (Placement(transformation(extent={{40,-30},{60,-10}})));
@@ -369,6 +370,13 @@ Buildings.Controls.OBC.CDL.Reals.PID</a>.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 December 11, 2023, by Jianjun Hu:<br/>
 Reimplemented on-off control to avoid using the obsolete <code>OnOffController</code>.
 This is for

diff --git a/Buildings/Fluid/Boilers/Examples/BoilerPolynomialClosedLoop.mo b/Buildings/Fluid/Boilers/Examples/BoilerPolynomialClosedLoop.mo
@@ -36,6 +36,7 @@ model BoilerPolynomialClosedLoop
         origin={0,40})));
   Movers.FlowControlled_m_flow pumLoa(
     redeclare package Medium = Medium,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=2*m_flow_nominal,
     energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState)
     "Pump for heating load" annotation (Placement(transformation(
@@ -44,6 +45,7 @@ model BoilerPolynomialClosedLoop
         origin={0,110})));
   Movers.FlowControlled_m_flow pumBoi(
     redeclare package Medium = Medium,
+    nominalValuesDefineDefaultPressureCurve=true,
     m_flow_nominal=m_flow_nominal,
     energyDynamics=Modelica.Fluid.Types.Dynamics.SteadyState)
     "Pump for boiler loop" annotation (Placement(transformation(
@@ -270,6 +272,13 @@ and it is used to accommodate for the thermal expansion of the water.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Specified <code>nominalValuesDefineDefaultPressureCurve=true</code>
+in the mover component to suppress a warning.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 March 1, 2016, by Michael Wetter:<br/>
 Removed parameter <code>dynamicBalance</code>.
 This is for

diff --git a/Buildings/Fluid/FMI/ExportContainers/Validation/RoomHVAC.mo b/Buildings/Fluid/FMI/ExportContainers/Validation/RoomHVAC.mo
@@ -49,7 +49,6 @@ protected
     extends Buildings.Examples.Tutorial.SpaceCooling.System3(
       vol(energyDynamics=
       Modelica.Fluid.Types.Dynamics.FixedInitial),
-      fan(nominalValuesDefineDefaultPressureCurve=true),
       hex(dp1_nominal=200 + 10,
           dp2_nominal=200 + 200));
     annotation (Documentation(info="<html>
@@ -218,6 +217,13 @@ With Dymola 2017, we obtain the trajectories shown below.
 </html>", revisions="<html>
 <ul>
 <li>
+April 9, 2024, by Hongxiang Fu:<br/>
+Removed redundant nominal curve specification which is now specified
+in a lower-level model.
+This is for
+<a href=\"https://github.com/lbl-srg/modelica-buildings/issues/3819\">#3819</a>.
+</li>
+<li>
 September 21, 2021 by David Blum:<br/>
 Use design conditions for UA parameterization in cooling coil.<br/>
 This is for <a href=\"https://github.com/lbl-srg/modelica-buildings/issues/2624\">#2624</a>.