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Merge pull request #1495 from RWTH-EBC/1492-window-ventilation
1492 window ventilation
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25 changes: 25 additions & 0 deletions
25
...ib/Airflow/WindowVentilation/BaseClasses/Functions/CoeffsSunshadingInstallationVDI2078.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions; | ||
| function CoeffsSunshadingInstallationVDI2078 | ||
| "Calculate the sunshading coefficient based on its installation defined by VDI 2078" | ||
| extends Modelica.Icons.Function; | ||
| input AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078 | ||
| typ "Sunshading type defined in VDI 2078"; | ||
| output Real cof "Coefficient of sunshading"; | ||
| algorithm | ||
| cof := if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078.NoSunshading | ||
| then 1.0 else if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078.ExternalBlindsFront | ||
| then 0.9 else if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078.ExternalBlindsOn | ||
| then 0.66 else if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078.Awning | ||
| then 1 else if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SunshadingInstallationTypesVDI2078.Screen | ||
| then 0.33 else 0; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 14, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function finds the sunshading coefficient according to the input sunshading type. Values are defined by VDI 2078.</p> | ||
| </html>")); | ||
| end CoeffsSunshadingInstallationVDI2078; |
24 changes: 24 additions & 0 deletions
24
AixLib/Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/AngleToWidth.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function AngleToWidth | ||
| "Conversion from the hinged opening angle to hinged opening width" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Length lenAxs(min=0) | ||
| "Length of the hinged axis, the axis should be parallel to a window frame"; | ||
| input Modelica.Units.SI.Length lenAxsToFrm(min=0) | ||
| "Distance from the hinged axis to the frame across the opening area"; | ||
| input Modelica.Units.SI.Angle ang(min=0, max=Modelica.Constants.pi/2) | ||
| "Opening angle of window sash"; | ||
| output Modelica.Units.SI.Length width(min=0) "Opening width of window sash"; | ||
| algorithm | ||
| width := 2*lenAxsToFrm*sin(ang/2); | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function converts the hinged opening angle to hinged opening width.</p> | ||
| </html>")); | ||
| end AngleToWidth; |
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...low/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/CoeffOpeningAreaDIN16798.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function CoeffOpeningAreaDIN16798 | ||
| "Coefficient for hinged opening area according to DIN CEN/TR 16798-8 (DIN SPEC 32739-8)" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Angle ang(min=0, max=Modelica.Constants.pi/2) | ||
| "Window sash opening angle"; | ||
| output Real cof "Coefficient"; | ||
| protected | ||
| Modelica.Units.NonSI.Angle_deg angDeg "Window sash opening angle in deg"; | ||
| algorithm | ||
| angDeg := Modelica.Units.Conversions.to_deg(ang); | ||
| assert(angDeg <= 90, | ||
| "The model only applies to a maximum tilt angle of 90°", | ||
| AssertionLevel.error); | ||
| cof := 2.6e-7*(angDeg^3) - 1.19e-4*(angDeg^2) + 1.86e-2*angDeg; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function calculates the coefficient for hinged opening area according to DIN CEN/TR 16798-8 (DIN SPEC 32739-8).</p> | ||
| </html>")); | ||
| end CoeffOpeningAreaDIN16798; |
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...Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/EffectiveOpeningArea.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function EffectiveOpeningArea | ||
| "Calculation of the effective opening area" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Area AClr(min=0) "Window clear opening area"; | ||
| input Modelica.Units.SI.Area AEqv(min=0) "Window equivalent opening area"; | ||
| input Modelica.Units.SI.Area AEqv90(min=0) | ||
| "Window equivalent opening area by 90° opening"; | ||
| output Modelica.Units.SI.Area AEff(min=0) "Effective opening area"; | ||
| algorithm | ||
| AEff := AEqv/AEqv90*AClr; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function calculates the effective opening area.</p> | ||
| </html>")); | ||
| end EffectiveOpeningArea; |
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24
...irflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/EquivalentOpeningArea.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function EquivalentOpeningArea | ||
| "Calculation of the equivalent opening area" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Area AClr(min=0) "Window clear opening area"; | ||
| input Modelica.Units.SI.Area AGeo(min=0) "Window geometric opening area"; | ||
| output Modelica.Units.SI.Area AEqv(min=0) "Equivalent opening area"; | ||
| algorithm | ||
| if (AClr<Modelica.Constants.eps) or (AGeo<Modelica.Constants.eps) then | ||
| AEqv := 0; | ||
| else | ||
| AEqv := (AClr^(-2) + AGeo^(-2))^(-0.5); | ||
| end if; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function calculates the equivalent opening area.</p> | ||
| </html>")); | ||
| end EquivalentOpeningArea; |
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...Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/GeometricOpeningArea.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function GeometricOpeningArea | ||
| "Calculation of the geometric opening area" | ||
| extends | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged.PartialOpeningArea; | ||
| protected | ||
| Modelica.Units.SI.Angle ang= | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged.WidthToAngle( | ||
| lenAxs, lenAxsToFrm, width) "Hinged opening angle"; | ||
| Modelica.Units.SI.Area A1 "Opening area of oppsite side"; | ||
| Modelica.Units.SI.Area A2 "Opening area of profile side"; | ||
| algorithm | ||
| A1 := width*lenAxs; | ||
| A2 := 0.5*width*lenAxsToFrm*cos(ang/2); | ||
| A := A1 + 2*A2; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function calculates the geometric opening area.</p> | ||
| </html>")); | ||
| end GeometricOpeningArea; |
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...b/Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/PartialOpeningArea.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| partial function PartialOpeningArea | ||
| "Calculation of hinged-opening area by rectangular windows, unspecified types" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Length lenAxs(min=0) | ||
| "Length of the hinged axis, the axis should be parallel to a window frame"; | ||
| input Modelica.Units.SI.Length lenAxsToFrm(min=0) | ||
| "Distance from the hinged axis to the frame across the opening area"; | ||
| input Modelica.Units.SI.Length width(min=0) "Opening width of window sash"; | ||
| output Modelica.Units.SI.Area A(min=0) "Opening area"; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This partial function defines the inputs and output of the function for opening area calculation.</p> | ||
| </html>")); | ||
| end PartialOpeningArea; |
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...irflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/ProjectiveOpeningArea.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function ProjectiveOpeningArea | ||
| "Calculation of the projective opening area" | ||
| extends | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged.PartialOpeningArea; | ||
| protected | ||
| Modelica.Units.SI.Angle ang= | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged.WidthToAngle( | ||
| lenAxs, lenAxsToFrm, width) "Hinged opening angle"; | ||
| Modelica.Units.SI.Area A1 "Projective opening of oppsite side"; | ||
| Modelica.Units.SI.Area A2 "Projectvie opening of profile side"; | ||
| algorithm | ||
| A1 := lenAxs*lenAxsToFrm*(1 - cos(ang)); | ||
| A2 := 0.5*lenAxsToFrm*sin(ang)*lenAxsToFrm*cos(ang); | ||
| A := A1 + 2*A2; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function calculates the projective opening area.</p> | ||
| </html>")); | ||
| end ProjectiveOpeningArea; |
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27
AixLib/Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/WidthToAngle.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions.OpeningAreaHinged; | ||
| function WidthToAngle | ||
| "Conversion from the hinged opening width to hinged opening angle" | ||
| extends Modelica.Icons.Function; | ||
| input Modelica.Units.SI.Length lenAxs(min=0) | ||
| "Length of the hinged axis, the axis should be parallel to a window frame"; | ||
| input Modelica.Units.SI.Length lenAxsToFrm(min=0) | ||
| "Distance from the hinged axis to the frame across the opening area"; | ||
| input Modelica.Units.SI.Length width(min=0) "Opening width of window sash"; | ||
| output Modelica.Units.SI.Angle ang(min=0, max=Modelica.Constants.pi/2) | ||
| "Opening angle of window sash"; | ||
| algorithm | ||
| assert(width <= sqrt(2)*lenAxsToFrm, | ||
| "The opening angle should be less or equal than 90°", | ||
| AssertionLevel.error); | ||
| ang := 2*asin(width/(2*lenAxsToFrm)); | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function converts the hinged opening width to hinged opening angle.</p> | ||
| </html>")); | ||
| end WidthToAngle; |
4 changes: 4 additions & 0 deletions
4
AixLib/Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/package.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions; | ||
| package OpeningAreaHinged "Calculation of different hinged-opening areas by rectangular windows" | ||
| extends Modelica.Icons.FunctionsPackage; | ||
| end OpeningAreaHinged; |
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AixLib/Airflow/WindowVentilation/BaseClasses/Functions/OpeningAreaHinged/package.order
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|---|---|---|
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| AngleToWidth | ||
| CoeffOpeningAreaDIN16798 | ||
| EffectiveOpeningArea | ||
| EquivalentOpeningArea | ||
| GeometricOpeningArea | ||
| PartialOpeningArea | ||
| ProjectiveOpeningArea | ||
| WidthToAngle |
42 changes: 42 additions & 0 deletions
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AixLib/Airflow/WindowVentilation/BaseClasses/Functions/SmallestAngleDifference.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses.Functions; | ||
| function SmallestAngleDifference | ||
| "Smallest difference between two angles around a point" | ||
| input AixLib.Airflow.WindowVentilation.BaseClasses.Types.SmallestAngleDifferenceTypes | ||
| typ=AixLib.Airflow.WindowVentilation.BaseClasses.Types.SmallestAngleDifferenceTypes.Range180; | ||
| input Modelica.Units.SI.Angle ang1 "Input angle"; | ||
| input Modelica.Units.SI.Angle ang2=0 "Reference angle"; | ||
| output Modelica.Units.SI.Angle angDif "Difference between two angels"; | ||
| algorithm | ||
| angDif := ang1 - ang2; | ||
| if typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SmallestAngleDifferenceTypes.Range180 then | ||
| /*Convert difference to -180°...+180°*/ | ||
| while angDif <= -Modelica.Constants.pi loop | ||
| angDif := angDif + 2*Modelica.Constants.pi; | ||
| end while; | ||
| while angDif > Modelica.Constants.pi loop | ||
| angDif := angDif - 2*Modelica.Constants.pi; | ||
| end while; | ||
| elseif typ == AixLib.Airflow.WindowVentilation.BaseClasses.Types.SmallestAngleDifferenceTypes.Range360 then | ||
| /*Convert difference to 0...360°*/ | ||
| while angDif < 0 loop | ||
| angDif := angDif + 2*Modelica.Constants.pi; | ||
| end while; | ||
| while angDif >= 2*Modelica.Constants.pi loop | ||
| angDif := angDif - 2*Modelica.Constants.pi; | ||
| end while; | ||
| else | ||
| /*Exceptions*/ | ||
| angDif := 0; | ||
| end if; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This function finds the smallest difference between two angles around a point.</p> | ||
| <p>The difference is calculated as input angle 'ang1' to the reference angle 'ang2', positive value shows a clockwise direction from input to reference, i.e. shows a counter-clockwise by measurement.</p> | ||
| </html>")); | ||
| end SmallestAngleDifference; |
4 changes: 4 additions & 0 deletions
4
AixLib/Airflow/WindowVentilation/BaseClasses/Functions/package.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses; | ||
| package Functions | ||
| extends Modelica.Icons.FunctionsPackage; | ||
| end Functions; |
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AixLib/Airflow/WindowVentilation/BaseClasses/Functions/package.order
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,3 @@ | ||
| CoeffsSunshadingInstallationVDI2078 | ||
| SmallestAngleDifference | ||
| OpeningAreaHinged |
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66
AixLib/Airflow/WindowVentilation/BaseClasses/PartialEmpiricalFlow.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses; | ||
| partial model PartialEmpiricalFlow | ||
| "Partial model for empirical expressions of ventilation flow rate" | ||
| parameter Modelica.Units.SI.Length winClrWidth(min=0) | ||
| "Width of the window clear opening"; | ||
| parameter Modelica.Units.SI.Height winClrHeight(min=0) | ||
| "Height of the window clear opening"; | ||
| final parameter Boolean use_opnWidth_in=openingArea.use_opnWidth_in | ||
| "Use input port for window sash opening"; | ||
| Modelica.Blocks.Interfaces.RealInput opnWidth_in( | ||
| final quantity="Length", final unit="m", min=0) if use_opnWidth_in | ||
| "Conditional input port for window sash opening width" | ||
| annotation (Placement(transformation( | ||
| extent={{-20,-20},{20,20}}, | ||
| rotation=-90, | ||
| origin={0,120}))); | ||
| Modelica.Blocks.Interfaces.RealOutput V_flow( | ||
| final quantity="VolumeFlowRate", final unit="m3/s", min=0) | ||
| "Ventilation flow rate" | ||
| annotation (Placement(transformation(extent={{100,-10},{120,10}}))); | ||
| replaceable model OpeningArea = | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.PartialOpeningArea | ||
| constrainedby | ||
| AixLib.Airflow.WindowVentilation.BaseClasses.PartialOpeningArea( | ||
| final winClrWidth=winClrWidth, | ||
| final winClrHeight=winClrHeight) | ||
| "Model for window opening area calculation" | ||
| annotation(choicesAllMatching=true); | ||
| OpeningArea openingArea "Model instance for window opening area calculation" | ||
| annotation (Placement(transformation(extent={{20,60},{40,80}}))); | ||
| //Variables and parameters for assertion check | ||
| Real intRes | ||
| "Interim result used to check the if assertion is raised in root calculation"; | ||
| Integer errCouIntRes(start=0) "Warning counter for interim result warnings"; | ||
| parameter String varNameIntRes "Variable name of interim result"; | ||
| initial equation | ||
| errCouIntRes = 0; | ||
| equation | ||
| // Assertion check | ||
| when intRes < Modelica.Constants.eps then | ||
| errCouIntRes = pre(errCouIntRes) + 1; | ||
| end when; | ||
| assert(intRes > Modelica.Constants.eps or errCouIntRes > 1, | ||
| "In " + getInstanceName() + ": The polynomial under the square root to | ||
| calculate '" + varNameIntRes + "' is equal or less than 0, '" + | ||
| varNameIntRes + "' will be set to 0", | ||
| AssertionLevel.warning); | ||
| // Connection(s) | ||
| connect(opnWidth_in, openingArea.opnWidth_in) annotation (Line( | ||
| points={{0,120},{0,70},{18,70}}, | ||
| color={0,0,127}, | ||
| pattern=DynamicSelect(LinePattern.Dash, if use_opnWidth_in then | ||
| LinePattern.Solid else LinePattern.Dash))); | ||
| annotation (Icon(coordinateSystem(preserveAspectRatio=false)), Diagram( | ||
| coordinateSystem(preserveAspectRatio=false)), | ||
| Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This partial model provides a base class of models that estimate ventilation volume flow.</p> | ||
| </html>")); | ||
| end PartialEmpiricalFlow; |
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AixLib/Airflow/WindowVentilation/BaseClasses/PartialEmpiricalFlowStack.mo
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| within AixLib.Airflow.WindowVentilation.BaseClasses; | ||
| partial model PartialEmpiricalFlowStack | ||
| "Partial model for empirical expressions with stack effect considered" | ||
| extends AixLib.Airflow.WindowVentilation.BaseClasses.PartialEmpiricalFlow; | ||
| Modelica.Blocks.Interfaces.RealInput TRoom( | ||
| final unit="K", min=273, max=313) | ||
| "Room temperature, ranging from 0 to 40 °C" | ||
| annotation (Placement(transformation(extent={{-140,60},{-100,100}}))); | ||
| Modelica.Blocks.Interfaces.RealInput TAmb( | ||
| final unit="K", min=243, max=323) | ||
| "Ambient temperature, ranging from -30 to 50 °C" | ||
| annotation (Placement(transformation(extent={{-140,20},{-100,60}}))); | ||
| protected | ||
| Modelica.Units.SI.TemperatureDifference dTRoomAmb = TRoom - TAmb | ||
| "Temperature difference between room and ambient"; | ||
| Modelica.Units.SI.Temperature TAvg = (TRoom + TAmb)/2 | ||
| "Average temperature of room and ambient"; | ||
| annotation (Documentation(revisions="<html> | ||
| <ul> | ||
| <li> | ||
| June 13, 2024, by Jun Jiang:<br/> | ||
| First implementation (see <a href=\"https://github.com/RWTH-EBC/AixLib/issues/1492\">issue 1492</a>) | ||
| </li> | ||
| </ul> | ||
| </html>", info="<html> | ||
| <p>This partial model provides a base class of models that estimate ventilation volume flow. The model has indoor and ambient temperature input ports to account for the thermal stack effect.</p> | ||
| </html>")); | ||
| end PartialEmpiricalFlowStack; |
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