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Merged
merged 2 commits into from
Apr 7, 2022
Merged

Add start values in volumes #117

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b98d1bf
simplified Steam extraction splitter with flash tank inspiration
pierre-eliep-met Apr 7, 2022
c09b153
added icon and start values in volumes
pierre-eliep-met Apr 7, 2022
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3 changes: 0 additions & 3 deletions MetroscopeModelingLibrary/Tests/WaterSteamTests/Pipes/SteamExtractionSplitterTest_direct.mo
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Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,6 @@ model SteamExtractionSplitterTest_direct
// Input: Component parameters
input Real alpha(start=0.8, min=0, max=1) "1";

// Output: Observables
output Units.SpecificEnthalpy main_h_out;

// Components
WaterSteam.Pipes.SteamExtractionSplitter steamExtractionSplitter annotation (Placement(transformation(extent={{-27,-26.6667},{27,21.3333}})));

Expand Down
4 changes: 2 additions & 2 deletions MetroscopeModelingLibrary/Tests/WaterSteamTests/Pipes/SteamExtractionSplitterTest_reverse.mo
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Expand Up @@ -40,10 +40,10 @@ equation
extracted_Q_sensor.Q = extracted_Q;

// Input: Observables
steamExtractionSplitter.alpha = alpha;
steamExtractionSplitter.mainFlow.h_out = main_h_out;

// Output: Component parameters
steamExtractionSplitter.mainFlow.h_out = main_h_out;
steamExtractionSplitter.alpha = alpha;

// Assertion
assert(alpha <= 1 and alpha >= 0, "From model assertion error: alpha should be within 0 and 1");
Expand Down
14 changes: 6 additions & 8 deletions MetroscopeModelingLibrary/Tests/WaterSteamTests/Volumes.mo
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Expand Up @@ -22,7 +22,6 @@ package Volumes
source.Q_out = -Q_in;
source.h_out = h_in;


connect(flashTank.C_in, source.C_out)
annotation (Line(points={{-32,12},{-65,12}}, color={28,108,200}));
connect(flashTank.C_hot_steam, steam_sink.C_in)
Expand All @@ -35,7 +34,7 @@ package Volumes
extends Modelica.Icons.Example;

// Boundary Conditions
input Real P(start = 10, nominal=1e5) "barA";
input Real P(start = 10, nominal=10) "barA";
input Real Q_in(start=500, nominal=500) "kg/s";
input Real h_in(start=2e6) "J/kg";

Expand All @@ -60,12 +59,11 @@ package Volumes
// Component parameters
steamDryer.x_steam_out = x_steam_out;

connect(steamDryer.C_in, source.C_out) annotation (Line(points={{-32,
10.1818},{-48,10.1818},{-48,12},{-65,12}},
connect(steamDryer.C_in, source.C_out) annotation (Line(points={{-32,10.1818},{-48,10.1818},{-48,12},{-65,12}},
color={28,108,200}));
connect(steamDryer.C_hot_steam, steam_sink.C_in) annotation (Line(points={{28,
10.1818},{44,10.1818},{44,12},{61,12}}, color={28,108,200}));
connect(steamDryer.C_hot_liquid, liquid_sink.C_in) annotation (Line(points={{28,
-11.6364},{44,-11.6364},{44,-12},{61,-12}}, color={28,108,200}));
connect(steamDryer.C_hot_steam, steam_sink.C_in) annotation (Line(points={{28,10.1818},{44,10.1818},{44,12},{61,12}},
color={28,108,200}));
connect(steamDryer.C_hot_liquid, liquid_sink.C_in) annotation (Line(points={{28,-11.6364},{44,-11.6364},{44,-12},{61,-12}},
color={28,108,200}));
end SteamDryer_direct;
end Volumes;
34 changes: 14 additions & 20 deletions MetroscopeModelingLibrary/WaterSteam/Pipes/SteamExtractionSplitter.mo
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Original file line number Diff line number Diff line change
Expand Up @@ -16,16 +16,15 @@ model SteamExtractionSplitter
Units.InletMassFlowRate Q_in(start=Q_in_0) "Inlet Mass flow rate";
Units.Pressure P(start=P_0) "Inlet Pressure";
Units.SpecificEnthalpy h_in "Inlet specific enthalpy";
Units.SpecificEnthalpy hesat(start=hesat_0) "Enthalpy of saturated water";
Units.SpecificEnthalpy hvsat(start=hvsat_0) "Enthalpy of saturated vapor";
Units.SpecificEnthalpy h_liq_sat(start=h_liq_sat_0) "Enthalpy of saturated water";
Units.SpecificEnthalpy h_vap_sat(start=h_vap_sat_0) "Enthalpy of saturated vapor";
Units.MassFraction x_ext_out(start=0.8) "Vapor mass fraction at extraction outlet (0 <= x_ext_out <= x_in)";
Units.MassFraction x_main_out(start=0.8) "Vapor mass fraction at main outlet";
Units.MassFraction x_in(start=0.8) "Vapor mass fraction at inlet";

Inputs.InputReal alpha(start=1, min=0, max=1) "Extraction paramater";

// Components
WaterSteam.BaseClasses.WaterIsoPHFlowModel inletFlow(Q_0=Q_in_0, P_0=P_0) annotation (Placement(transformation(extent={{-85,-27},{-35,27}})));
WaterSteam.BaseClasses.WaterIsoPFlowModel extractedFlow(Q_0=Q_ext_0, P_0=P_0) annotation (Placement(transformation(
extent={{-11.5,-10.5},{11.5,10.5}},
rotation=270,
Expand All @@ -36,15 +35,15 @@ model SteamExtractionSplitter
Connectors.WaterOutlet C_main_out(Q(start=-Q_main_0), P(start=P_0)) annotation (Placement(transformation(extent={{100,-10},{120,10}}),iconTransformation(extent={{96,-10},{116,10}})));
Connectors.WaterOutlet C_ext_out(Q(start=-Q_ext_0), P(start=P_0)) annotation (Placement(transformation(extent={{-10,-74},{10,-54}}), iconTransformation(extent={{-10,-78},{10,-58}})));
protected
parameter Units.SpecificEnthalpy hvsat_0 = WaterSteamMedium.dewEnthalpy(WaterSteamMedium.setSat_p(P_0));
parameter Units.SpecificEnthalpy hesat_0 = WaterSteamMedium.bubbleEnthalpy(WaterSteamMedium.setSat_p(P_0));
parameter Units.SpecificEnthalpy h_vap_sat_0 = WaterSteamMedium.dewEnthalpy(WaterSteamMedium.setSat_p(P_0));
parameter Units.SpecificEnthalpy h_liq_sat_0 = WaterSteamMedium.bubbleEnthalpy(WaterSteamMedium.setSat_p(P_0));
equation
// Definition of all intermediate variables
hvsat = WaterSteamMedium.dewEnthalpy(WaterSteamMedium.setSat_p(P));
hesat = WaterSteamMedium.bubbleEnthalpy(WaterSteamMedium.setSat_p(P));
Q_in = inletFlow.Q;
P = inletFlow.P;
h_in = inletFlow.h;
h_vap_sat = WaterSteamMedium.dewEnthalpy(WaterSteamMedium.setSat_p(P));
h_liq_sat = WaterSteamMedium.bubbleEnthalpy(WaterSteamMedium.setSat_p(P));
Q_in = extractedFlow.Q + mainFlow.Q;
P = C_in.P;
h_in = inStream(C_in.h_outflow);

//Energy balance
extractedFlow.W + mainFlow.W = 0;
Expand All @@ -53,15 +52,14 @@ equation
x_ext_out = alpha * x_in;

// Mass Fractions Computation
x_in = (h_in - hesat) / (hvsat - hesat);
x_main_out = (mainFlow.h_out - hesat) / (hvsat - hesat);
x_ext_out = (extractedFlow.h_out - hesat) / (hvsat - hesat);
connect(inletFlow.C_out, mainFlow.C_in) annotation (Line(points={{-35,0},{35,0}}, color={28,108,200}));
x_in = (h_in - h_liq_sat) / (h_vap_sat - h_liq_sat);
x_main_out = (mainFlow.h_out - h_liq_sat) / (h_vap_sat - h_liq_sat);
x_ext_out = (extractedFlow.h_out - h_liq_sat) / (h_vap_sat - h_liq_sat);
connect(extractedFlow.C_in, mainFlow.C_in) annotation (Line(points={{1.77636e-15,-18.5},{1.77636e-15,0},{35,0}}, color={28,108,200}));
connect(extractedFlow.C_out, C_ext_out) annotation (Line(points={{-2.10942e-15,-41.5},{-2.10942e-15,-54},{0,-54},{0,-64}},
color={28,108,200}));
connect(C_in, inletFlow.C_in) annotation (Line(points={{-110,0},{-85,0}}, color={28,108,200}));
connect(C_main_out, mainFlow.C_out) annotation (Line(points={{110,0},{85,0}}, color={28,108,200}));
connect(C_in, mainFlow.C_in) annotation (Line(points={{-110,0},{35,0}}, color={28,108,200}));
annotation (Icon(coordinateSystem(preserveAspectRatio=true, extent={{-100,-100},{100,80}}),
graphics={Polygon(
points={{-100,20},{-100,-20},{-46,-20},{-8,-60},{10,-60},{-16,-20},{100,-20},{100,20},{-100,20}},
Expand All @@ -79,9 +77,5 @@ equation
textColor={28,108,200},
origin={-12,-30},
rotation=270,
textString="extracted"),
Text(
extent={{-74,-18},{-32,-28}},
textColor={28,108,200},
textString="inlet")}));
textString="extracted")}));
end SteamExtractionSplitter;
19 changes: 12 additions & 7 deletions MetroscopeModelingLibrary/WaterSteam/Volumes/FlashTank.mo
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Original file line number Diff line number Diff line change
Expand Up @@ -4,19 +4,24 @@ model FlashTank
package WaterSteamMedium = MetroscopeModelingLibrary.Media.WaterSteamMedium;

import MetroscopeModelingLibrary.Units;
Units.Pressure P(start=10e5);
Units.InletMassFlowRate Q_in;

WaterSteam.Connectors.WaterInlet C_in
// Initialization parameters
parameter Units.Pressure P_0 = 10e5;
parameter Units.InletMassFlowRate Q_in_0=500;

Units.Pressure P(start=P_0);
Units.InletMassFlowRate Q_in(start=Q_in_0);

WaterSteam.Connectors.WaterInlet C_in(P(start=P_0), Q(start=Q_in_0))
annotation (Placement(transformation(extent={{-110,30},{-90,50}}),
iconTransformation(extent={{-110,30},{-90,50}})));
WaterSteam.Connectors.WaterOutlet C_hot_steam
WaterSteam.Connectors.WaterOutlet C_hot_steam(P(start=P_0), Q(start=-Q_in_0/2))
annotation (Placement(transformation(extent={{90,30},{110,50}})));
WaterSteam.Connectors.WaterOutlet C_hot_liquid
WaterSteam.Connectors.WaterOutlet C_hot_liquid(P(start=P_0), Q(start=-Q_in_0/2))
annotation (Placement(transformation(extent={{90,-50},{110,-30}})));
WaterSteam.BaseClasses.WaterIsoPFlowModel steam_phase
WaterSteam.BaseClasses.WaterIsoPFlowModel steam_phase(P_0=P_0, Q_0=Q_in_0/2)
annotation (Placement(transformation(extent={{26,30},{46,50}})));
WaterSteam.BaseClasses.WaterIsoPFlowModel liquid_phase
WaterSteam.BaseClasses.WaterIsoPFlowModel liquid_phase(P_0=P_0, Q_0=Q_in_0/2)
annotation (Placement(transformation(extent={{26,-50},{46,-30}})));
equation

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27 changes: 16 additions & 11 deletions MetroscopeModelingLibrary/WaterSteam/Volumes/SteamDryer.mo
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Expand Up @@ -5,25 +5,32 @@ model SteamDryer

import MetroscopeModelingLibrary.Units;

Units.SpecificEnthalpy h_vap_sat; // Saturated liquid enthalpy
Units.SpecificEnthalpy h_liq_sat; // Saturated steam enthalpy
// Initialization parameters
parameter Units.Pressure P_0 = 10e5;
parameter Units.InletMassFlowRate Q_in_0=500;

Units.Pressure P(start=10e5); // Pressure in dryer
Units.InletMassFlowRate Q_in; // Inlet mass flow rate
Units.SpecificEnthalpy h_vap_sat(start=h_vap_sat_0); // Saturated liquid enthalpy
Units.SpecificEnthalpy h_liq_sat(start=h_liq_sat_0); // Saturated steam enthalpy

Units.Pressure P(start=P_0); // Pressure in dryer
Units.InletMassFlowRate Q_in(start=Q_in_0); // Inlet mass flow rate

Units.MassFraction x_steam_out; // Steam mass fraction at steam outlet

WaterSteam.Connectors.WaterInlet C_in
WaterSteam.Connectors.WaterInlet C_in(P(start=P_0), Q(start=Q_in_0))
annotation (Placement(transformation(extent={{-110,30},{-90,50}}),
iconTransformation(extent={{-110,30},{-90,50}})));
WaterSteam.Connectors.WaterOutlet C_hot_steam
WaterSteam.Connectors.WaterOutlet C_hot_steam(P(start=P_0), Q(start=-Q_in_0/2))
annotation (Placement(transformation(extent={{90,30},{110,50}})));
WaterSteam.Connectors.WaterOutlet C_hot_liquid
WaterSteam.Connectors.WaterOutlet C_hot_liquid(P(start=P_0), Q(start=-Q_in_0/2))
annotation (Placement(transformation(extent={{90,-50},{110,-30}})));
WaterSteam.BaseClasses.WaterIsoPFlowModel steam_phase
WaterSteam.BaseClasses.WaterIsoPFlowModel steam_phase(P_0=P_0, Q_0=Q_in_0/2)
annotation (Placement(transformation(extent={{26,30},{46,50}})));
WaterSteam.BaseClasses.WaterIsoPFlowModel liquid_phase
WaterSteam.BaseClasses.WaterIsoPFlowModel liquid_phase(P_0=P_0, Q_0=Q_in_0/2)
annotation (Placement(transformation(extent={{26,-50},{46,-30}})));
protected
parameter Units.SpecificEnthalpy h_vap_sat_0 = WaterSteamMedium.dewEnthalpy(WaterSteamMedium.setSat_p(P_0));
parameter Units.SpecificEnthalpy h_liq_sat_0 = WaterSteamMedium.bubbleEnthalpy(WaterSteamMedium.setSat_p(P_0));
equation

// Definitions
Expand All @@ -39,8 +46,6 @@ equation
// Energy balance
steam_phase.W + liquid_phase.W = 0;



connect(liquid_phase.C_in, C_in) annotation (Line(points={{26,-40},{-40,-40},{
-40,40},{-100,40}},
color={28,108,200}));
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100 changes: 100 additions & 0 deletions MetroscopeModelingLibrary/WaterSteam/Volumes/package.mo
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@@ -1,3 +1,103 @@
within MetroscopeModelingLibrary.WaterSteam;
package Volumes
annotation (Icon(graphics={
Rectangle(
lineColor={200,200,200},
fillColor={248,248,248},
fillPattern=FillPattern.HorizontalCylinder,
extent={{-100,-100},{100,100}},
radius=25.0),
Rectangle(
lineColor={128,128,128},
extent={{-100,-100},{100,100}},
radius=25.0),
Rectangle(
extent={{-68,40},{70,-40}},
lineColor={28,108,200},
fillColor={236,238,248},
fillPattern=FillPattern.Solid,
lineThickness=1),
Polygon(
points={{-68,-10},{70,-10},{70,-40},{-68,-40},{-68,-10}},
lineColor={28,108,200},
lineThickness=0.5,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-60,22},{-54,16}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-52,10},{-46,4}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-46,26},{-40,20}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-64,0},{-58,-6}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-56,34},{-50,28}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-40,6},{-34,0}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-32,22},{-26,16}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-20,10},{-14,4}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-26,-2},{-20,-8}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-66,14},{-60,8}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{0,0},{6,-6}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Ellipse(
extent={{-48,0},{-42,-6}},
lineThickness=1,
fillColor={79,188,247},
fillPattern=FillPattern.Solid,
pattern=LinePattern.None),
Rectangle(
extent={{-68,40},{70,-40}},
lineColor={28,108,200},
lineThickness=1)}));
end Volumes;