-
Notifications
You must be signed in to change notification settings - Fork 164
/
TwoMass.mo
140 lines (140 loc) · 5.53 KB
/
TwoMass.mo
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
within Modelica.Thermal.FluidHeatFlow.Examples;
model TwoMass "Cooling of two hot masses"
extends Modelica.Icons.Example;
parameter FluidHeatFlow.Media.Medium medium=FluidHeatFlow.Media.Medium()
"Cooling medium" annotation (choicesAllMatching=true);
parameter SI.Temperature TAmb(displayUnit="degC")=293.15
"Ambient temperature";
parameter SI.Temperature TMass1(displayUnit="degC")=313.15
"Initial temperature of mass1";
parameter SI.Temperature TMass2(displayUnit="degC")=333.15
"Initial temperature of mass2";
output SI.TemperatureDifference dTMass1=
heatCapacitor1.port.T-TAmb "Mass1 over Ambient";
output SI.TemperatureDifference dTtoPipe1=heatCapacitor1.port.T-pipe1.T_q
"Mass1 over Coolant1";
output SI.TemperatureDifference dTCoolant1=pipe1.dT
"Coolant1's temperature increase";
output SI.TemperatureDifference dTMass2=
heatCapacitor2.port.T-TAmb "Mass2 over Ambient";
output SI.TemperatureDifference dTtoPipe2=heatCapacitor2.port.T-pipe2.T_q
"Mass2 over Coolant2";
output SI.TemperatureDifference dTCoolant2=pipe2.dT
"Coolant2's temperature increase";
output SI.TemperatureDifference dTmixedCoolant=ambient2.T_port-ambient1.T_port
"Mixed Coolant's temperature increase";
FluidHeatFlow.Sources.Ambient ambient1(
constantAmbientTemperature=TAmb,
medium=medium,
constantAmbientPressure=0)
annotation (Placement(transformation(extent={{-60,-10},{-80,10}})));
FluidHeatFlow.Sources.VolumeFlow pump(
medium=medium,
m=0,
T0=TAmb,
useVolumeFlowInput=true,
constantVolumeFlow=1)
annotation (Placement(transformation(extent={{-40,-10},{-20,10}})));
FluidHeatFlow.Components.Pipe pipe1(
medium=medium,
m=0.1,
T0=TAmb,
V_flowLaminar=0.1,
dpLaminar(displayUnit="Pa") = 0.1,
V_flowNominal=1,
dpNominal(displayUnit="Pa") = 1,
h_g=0,
T0fixed=true,
useHeatPort=true)
annotation (Placement(transformation(extent={{0,-20},{20,0}})));
FluidHeatFlow.Components.Pipe pipe2(
medium=medium,
m=0.1,
T0=TAmb,
V_flowLaminar=0.1,
dpLaminar(displayUnit="Pa") = 0.1,
V_flowNominal=1,
dpNominal(displayUnit="Pa") = 1,
h_g=0,
T0fixed=true,
useHeatPort=true)
annotation (Placement(transformation(extent={{0,20},{20,0}})));
FluidHeatFlow.Components.Pipe pipe3(
medium=medium,
m=0.1,
T0=TAmb,
V_flowLaminar=0.1,
dpLaminar(displayUnit="Pa") = 0.1,
V_flowNominal=1,
dpNominal(displayUnit="Pa") = 1,
h_g=0,
T0fixed=true)
annotation (Placement(transformation(extent={{40,-10},{60,10}})));
FluidHeatFlow.Sources.Ambient ambient2(
constantAmbientTemperature=TAmb,
medium=medium,
constantAmbientPressure=0)
annotation (Placement(transformation(extent={{80,-10},{100,10}})));
Modelica.Thermal.HeatTransfer.Components.HeatCapacitor heatCapacitor1(
C=0.1, T(start=TMass1, fixed=true))
annotation (Placement(transformation(
origin={10,-70},
extent={{10,-10},{-10,10}},
rotation=180)));
Modelica.Thermal.HeatTransfer.Components.ThermalConductor
thermalConductor1(G=1)
annotation (Placement(transformation(
origin={10,-40},
extent={{-10,-10},{10,10}},
rotation=90)));
Modelica.Thermal.HeatTransfer.Components.HeatCapacitor heatCapacitor2(
C=0.1, T(start=TMass2, fixed=true))
annotation (Placement(transformation(
origin={10,70},
extent={{10,10},{-10,-10}},
rotation=180)));
Modelica.Thermal.HeatTransfer.Components.ThermalConductor
thermalConductor2(G=1)
annotation (Placement(transformation(
origin={10,40},
extent={{10,-10},{-10,10}},
rotation=90)));
FluidHeatFlow.Examples.Utilities.DoubleRamp volumeFlow(
offset=0,
height_1=1,
height_2=-2)
annotation (Placement(transformation(extent={{-60,10},{-40,30}})));
equation
connect(ambient1.flowPort, pump.flowPort_a)
annotation (Line(points={{-60,0},{-40,0}}, color={255,0,0}));
connect(pump.flowPort_b, pipe1.flowPort_a)
annotation (Line(points={{-20,0},{-10,0},{-10,-10},{0,-10}}, color={255,
0,0}));
connect(pump.flowPort_b, pipe2.flowPort_a)
annotation (Line(points={{-20,0},{-10,0},{-10,10},{0,10}}, color={255,0,
0}));
connect(pipe2.flowPort_b,pipe3. flowPort_a) annotation (Line(points={{20,
10},{30,10},{30,0},{40,0}}, color={255,0,0}));
connect(pipe1.flowPort_b,pipe3. flowPort_a) annotation (Line(points={{20,
-10},{30,-10},{30,0},{40,0}}, color={255,0,0}));
connect(pipe3.flowPort_b,ambient2. flowPort)
annotation (Line(points={{60,0},{80,0}}, color={255,0,0}));
connect(heatCapacitor2.port,thermalConductor2. port_a) annotation (Line(
points={{10,60},{10,55},{10,50}}, color={191,0,0}));
connect(thermalConductor2.port_b,pipe2. heatPort)
annotation (Line(points={{10,30},{10,20}}, color={191,0,0}));
connect(pipe1.heatPort,thermalConductor1. port_b) annotation (Line(points=
{{10,-20},{10,-30}}, color={191,0,0}));
connect(thermalConductor1.port_a, heatCapacitor1.port) annotation (Line(
points={{10,-50},{10,-55},{10,-60}}, color={191,0,0}));
connect(volumeFlow.y, pump.volumeFlow) annotation (Line(
points={{-39,20},{-30,20},{-30,10}}, color={0,0,127}));
annotation (Documentation(info="<html>
<p>
8th test example: TwoMass
</p>
Two thermal capacities are coupled with two parallel coolant flow.
Different initial temperatures of thermal capacities and pipe's coolants get ambient's temperature,
the time behaviour depending on coolant flow.
</html>"), experiment(StopTime=1.0, Interval=0.001));
end TwoMass;