-
Notifications
You must be signed in to change notification settings - Fork 78
/
DHCPipe.mo
267 lines (266 loc) · 10.5 KB
/
DHCPipe.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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
within AixLib.Fluid.DistrictHeatingCooling.Pipes.Examples;
model DHCPipe "Simple example of DHCPipe and its four different modes"
extends Modelica.Icons.Example;
replaceable package Medium = AixLib.Media.Water "Medium in the pipe" annotation (
choicesAllMatching=true);
Modelica.Blocks.Sources.Pulse Tin(
amplitude=20,
period=20,
offset=273.15 + 50,
startTime=100) "Ramp pressure signal"
annotation (Placement(transformation(extent={{-100,44},{-80,64}})));
Sources.Boundary_pT sin(
redeclare package Medium = Medium,
T=273.15 + 10,
nPorts=1,
p(displayUnit="Pa") = 101325) "Pressure boundary condition"
annotation (Placement(transformation(extent={{72,40},{52,60}})));
AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe pip(
redeclare package Medium = Medium,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
redeclare BaseClassesStatic.StaticCore pipCor "Static core",
dh=0.1,
length=100,
dIns=0.05,
kIns=0.028,
m_flow_nominal=1,
cPip=500,
thickness=0.0032,
initDelay=true,
m_flow_start=1,
rhoPip=8000,
use_zeta=false,
T_start_in=323.15,
T_start_out=323.15) "Pipe"
annotation (Placement(transformation(extent={{-10,40},{10,60}})));
Modelica.Thermal.HeatTransfer.Sources.FixedTemperature bou(T=283.15)
"Boundary temperature"
annotation (Placement(transformation(extent={{-100,80},{-80,100}})));
AixLib.Fluid.Sources.MassFlowSource_T sou(
nPorts=1,
redeclare package Medium = Medium,
use_T_in=true,
m_flow=1) "Flow source"
annotation (Placement(transformation(extent={{-70,40},{-50,60}})));
AixLib.Fluid.Sensors.TemperatureTwoPort senTemOut(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{20,40},{40,60}})));
AixLib.Fluid.Sensors.TemperatureTwoPort senTemIn(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{-40,40},{-20,60}})));
Modelica.Blocks.Sources.Pulse Tin1(
amplitude=20,
period=20,
offset=273.15 + 50,
startTime=100) "Ramp pressure signal"
annotation (Placement(transformation(extent={{-100,4},{-80,24}})));
Sources.Boundary_pT sin1(
redeclare package Medium = Medium,
T=273.15 + 10,
nPorts=1,
p(displayUnit="Pa") = 101325) "Pressure boundary condition"
annotation (Placement(transformation(extent={{72,0},{52,20}})));
AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe pip1(
redeclare package Medium = Medium,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
redeclare FixedResistances.BaseClasses.PlugFlowCore pipCor "PlugFlow core",
dh=0.1,
length=100,
dIns=0.05,
kIns=0.028,
m_flow_nominal=1,
cPip=500,
thickness=0.0032,
initDelay=true,
m_flow_start=1,
rhoPip=8000,
use_zeta=false,
T_start_in=323.15,
T_start_out=323.15) "Pipe"
annotation (Placement(transformation(extent={{-10,0},{10,20}})));
Sources.MassFlowSource_T sou1(
nPorts=1,
redeclare package Medium = Medium,
use_T_in=true,
m_flow=1) "Flow source"
annotation (Placement(transformation(extent={{-70,0},{-50,20}})));
Sensors.TemperatureTwoPort senTemOut1(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{20,0},{40,20}})));
Sensors.TemperatureTwoPort senTemIn1(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{-40,0},{-20,20}})));
Modelica.Blocks.Sources.Pulse Tin2(
amplitude=20,
period=20,
offset=273.15 + 50,
startTime=100) "Ramp pressure signal"
annotation (Placement(transformation(extent={{-100,-38},{-80,-18}})));
Sources.Boundary_pT sin2(
redeclare package Medium = Medium,
T=273.15 + 10,
nPorts=1,
p(displayUnit="Pa") = 101325) "Pressure boundary condition"
annotation (Placement(transformation(extent={{72,-42},{52,-22}})));
AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe pip2(
redeclare package Medium = Medium,
use_soil=true,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
redeclare FixedResistances.BaseClasses.PlugFlowCore pipCor "PlugFlow core",
dh=0.1,
length=100,
dIns=0.05,
kIns=0.028,
m_flow_nominal=1,
cPip=500,
thickness=0.0032,
initDelay=true,
m_flow_start=1,
rhoPip=8000,
use_zeta=false,
T_start_in=323.15,
T_start_out=323.15) "Pipe"
annotation (Placement(transformation(extent={{-10,-42},{10,-22}})));
Sources.MassFlowSource_T sou2(
nPorts=1,
redeclare package Medium = Medium,
use_T_in=true,
m_flow=1) "Flow source"
annotation (Placement(transformation(extent={{-70,-42},{-50,-22}})));
Sensors.TemperatureTwoPort senTemOut2(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{20,-42},{40,-22}})));
Sensors.TemperatureTwoPort senTemIn2(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{-40,-42},{-20,-22}})));
Modelica.Blocks.Sources.Pulse Tin3(
amplitude=20,
period=20,
offset=273.15 + 50,
startTime=100) "Ramp pressure signal"
annotation (Placement(transformation(extent={{-100,-76},{-80,-56}})));
Sources.Boundary_pT sin3(
redeclare package Medium = Medium,
T=273.15 + 10,
nPorts=1,
p(displayUnit="Pa") = 101325) "Pressure boundary condition"
annotation (Placement(transformation(extent={{72,-80},{52,-60}})));
AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe pip3(
redeclare package Medium = Medium,
sum_zetas=2.5,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
redeclare FixedResistances.BaseClasses.PlugFlowCore pipCor "PlugFlow core",
dh=0.1,
length=100,
dIns=0.05,
kIns=0.028,
m_flow_nominal=1,
cPip=500,
thickness=0.0032,
initDelay=true,
m_flow_start=1,
rhoPip=8000,
use_zeta=true,
T_start_in=323.15,
T_start_out=323.15) "Pipe"
annotation (Placement(transformation(extent={{-10,-80},{10,-60}})));
Sources.MassFlowSource_T sou3(
nPorts=1,
redeclare package Medium = Medium,
use_T_in=true,
m_flow=1) "Flow source"
annotation (Placement(transformation(extent={{-70,-80},{-50,-60}})));
Sensors.TemperatureTwoPort senTemOut3(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{20,-80},{40,-60}})));
Sensors.TemperatureTwoPort senTemIn3(
redeclare package Medium = Medium,
m_flow_nominal=1,
T_start=323.15) "Temperature sensor"
annotation (Placement(transformation(extent={{-40,-80},{-20,-60}})));
equation
connect(bou.port, pip.heatPort)
annotation (Line(points={{-80,90},{0,90},{0,60}}, color={191,0,0}));
connect(Tin.y, sou.T_in)
annotation (Line(points={{-79,54},{-72,54}},
color={0,0,127}));
connect(pip.port_b, senTemOut.port_a)
annotation (Line(points={{10,50},{20,50}},
color={0,127,255}));
connect(senTemOut.port_b, sin.ports[1])
annotation (Line(points={{40,50},{52,50}},
color={0,127,255}));
connect(sou.ports[1], senTemIn.port_a)
annotation (Line(points={{-50,50},{-40,50}},
color={0,127,255}));
connect(senTemIn.port_b, pip.port_a)
annotation (Line(points={{-20,50},{-10,50}},
color={0,127,255}));
connect(bou.port, pip1.heatPort)
annotation (Line(points={{-80,90},{0,90},{0,20}}, color={191,0,0}));
connect(Tin1.y, sou1.T_in)
annotation (Line(points={{-79,14},{-72,14}}, color={0,0,127}));
connect(pip1.port_b, senTemOut1.port_a)
annotation (Line(points={{10,10},{20,10}}, color={0,127,255}));
connect(senTemOut1.port_b, sin1.ports[1])
annotation (Line(points={{40,10},{52,10}}, color={0,127,255}));
connect(sou1.ports[1], senTemIn1.port_a)
annotation (Line(points={{-50,10},{-40,10}}, color={0,127,255}));
connect(senTemIn1.port_b, pip1.port_a)
annotation (Line(points={{-20,10},{-10,10}}, color={0,127,255}));
connect(bou.port, pip2.heatPort)
annotation (Line(points={{-80,90},{0,90},{0,-22}}, color={191,0,0}));
connect(Tin2.y, sou2.T_in)
annotation (Line(points={{-79,-28},{-72,-28}}, color={0,0,127}));
connect(pip2.port_b, senTemOut2.port_a)
annotation (Line(points={{10,-32},{20,-32}}, color={0,127,255}));
connect(senTemOut2.port_b, sin2.ports[1])
annotation (Line(points={{40,-32},{52,-32}}, color={0,127,255}));
connect(sou2.ports[1], senTemIn2.port_a)
annotation (Line(points={{-50,-32},{-40,-32}}, color={0,127,255}));
connect(senTemIn2.port_b, pip2.port_a)
annotation (Line(points={{-20,-32},{-10,-32}}, color={0,127,255}));
connect(bou.port, pip3.heatPort)
annotation (Line(points={{-80,90},{0,90},{0,-60}}, color={191,0,0}));
connect(Tin3.y, sou3.T_in)
annotation (Line(points={{-79,-66},{-72,-66}}, color={0,0,127}));
connect(pip3.port_b, senTemOut3.port_a)
annotation (Line(points={{10,-70},{20,-70}}, color={0,127,255}));
connect(senTemOut3.port_b, sin3.ports[1])
annotation (Line(points={{40,-70},{52,-70}}, color={0,127,255}));
connect(sou3.ports[1], senTemIn3.port_a)
annotation (Line(points={{-50,-70},{-40,-70}}, color={0,127,255}));
connect(senTemIn3.port_b, pip3.port_a)
annotation (Line(points={{-20,-70},{-10,-70}}, color={0,127,255}));
annotation (
__Dymola_Commands(file="modelica://AixLib/Resources/Scripts/Dymola/Fluid/DistrictHeatingCooling/Pipes/Examples/DHCPipe.mos"
"Simulate and plot"),
experiment(StopTime=3600, Tolerance=1e-006),
Documentation(info="<html><p>
Basic test of model <a href=
\"modelica://AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe\">AixLib.Fluid.DistrictHeatingCooling.Pipes.DHCPipe</a>.
This test includes an inlet temperature step under a constant mass
flow rate. All four possible applications of the DHC pipe model are
shown as examples.
</p>
<ul>
<li>November 12, 2020, by Michael Mans:<br/>
First implementation
</li>
</ul>
</html>"));
end DHCPipe;