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feat : add initialization T of the thermal capacity

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Matthieu Descombes
2026-02-12 12:12:24 +01:00
parent b81a6d443b
commit 288758e467
2 changed files with 17 additions and 15 deletions
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13
Formation/OTRERA_formation/Components/ThermalCapacity.mo
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@@ -1,7 +1,10 @@
within OTRERA_formation.Components; within OTRERA_formation.Components;
model ThermalCapacity model ThermalCapacity
import Modelica.Fluid.Types.Dynamics ;
//USER DEFINED PARAMETERS //USER DEFINED PARAMETERS
parameter Dynamics energyDynamics = Dynamics.FixedInitial ;
parameter Modelica.Units.SI.Mass m = 10 "Object mass"; parameter Modelica.Units.SI.Mass m = 10 "Object mass";
parameter Modelica.Units.SI.SpecificHeatCapacity cp(min=0) = 1000 ; parameter Modelica.Units.SI.SpecificHeatCapacity cp(min=0) = 1000 ;
parameter Modelica.Units.SI.Temperature T_start = 283.15 ; parameter Modelica.Units.SI.Temperature T_start = 283.15 ;
@@ -14,12 +17,18 @@ model ThermalCapacity
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a port annotation( Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a port annotation(
Placement(transformation(extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-2, -4}, extent = {{-10, -10}, {10, 10}}))); Placement(transformation(extent = {{-10, -10}, {10, 10}}), iconTransformation(origin = {-2, -4}, extent = {{-10, -10}, {10, 10}})));
initial equation initial equation
if energyDynamics == Dynamics.SteadyStateInitial then
der(T) = 0 ;
elseif energyDynamics == Dynamics.FixedInitial then
T = T_start ; T = T_start ;
end if ;
equation equation
if energyDynamics == Dynamics.SteadyState then
Q_flow = 0 ;
else
Q_flow = m * cp * der(T) ; Q_flow = m * cp * der(T) ;
end if ;
//PORT HANDOVER //PORT HANDOVER
Q_flow = port.Q_flow ; Q_flow = port.Q_flow ;

13
Formation/OTRERA_formation/Models/Coupled_model.mo
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@@ -3,19 +3,12 @@ within OTRERA_formation.Models;
model Coupled_model model Coupled_model
Components.ThermalCapacity thermalCapacity(m = 30, cp = 2000) annotation( Components.ThermalCapacity thermalCapacity(m = 30, cp = 2000) annotation(
Placement(transformation(origin = {-10, 10}, extent = {{-10, -10}, {10, 10}}))); Placement(transformation(origin = {-30, 30}, extent = {{-10, -10}, {10, 10}})));
Components.Heatflow heatflow(Q_flow = 1000) annotation( Components.Heatflow heatflow(Q_flow = 1000) annotation(
Placement(transformation(origin = {-46, 10}, extent = {{-10, -10}, {10, 10}}))); Placement(transformation(origin = {-66, 30}, extent = {{-10, -10}, {10, 10}})));
Components.Heatflow heatflow1(Q_flow = 2000) annotation(
Placement(transformation(origin = {-46, -20}, extent = {{-10, -10}, {10, 10}})));
Modelica.Thermal.HeatTransfer.Components.ThermalConductor thermalConductor annotation(
Placement(transformation(origin = {22, 58}, extent = {{-10, -10}, {10, 10}})));
equation equation
connect(heatflow.port, thermalCapacity.port) annotation( connect(heatflow.port, thermalCapacity.port) annotation(
Line(points = {{-46, 10}, {-10, 10}}, color = {191, 0, 0})); Line(points = {{-66, 30}, {-30, 30}}, color = {191, 0, 0}));
connect(heatflow1.port, heatflow.port) annotation(
Line(points = {{-46, -20}, {-30, -20}, {-30, 10}, {-46, 10}}, color = {191, 0, 0}));
annotation( annotation(
Diagram(coordinateSystem(extent = {{-100, -100}, {100, 100}}))); Diagram(coordinateSystem(extent = {{-100, -100}, {100, 100}})));
end Coupled_model; end Coupled_model;