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update dynamic
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@EvenSol
EvenSol committed Dec 10, 2023
1 parent d85c6a6 commit cdd4f76
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Showing 3 changed files with 63 additions and 59 deletions.
16 changes: 16 additions & 0 deletions src/main/java/neqsim/processSimulation/processEquipment/heatExchanger/Heater.java
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Original file line number Diff line number Diff line change
Expand Up @@ -220,6 +220,22 @@ public void run(UUID id) {
setCalculationIdentifier(id);
}

/** {@inheritDoc} */
@Override
public void runTransient(double dt, UUID id) {
if (getCalculateSteadyState()) {
run(id);
increaseTime(dt);
return;
} else {
inStream.setPressure(outStream.getPressure());
inStream.run();
run(id);
increaseTime(dt);
return;
}

}


/** {@inheritDoc} */
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4 changes: 4 additions & 0 deletions src/main/java/neqsim/processSimulation/processEquipment/splitter/Splitter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -250,8 +250,12 @@ public void runTransient(double dt, UUID id) {
increaseTime(dt);
return;
} else {

Mixer mixer = new Mixer();
for (int i = 0; i < splitStream.length; i++) {
splitStream[i].setPressure(inletStream.getPressure());
splitStream[i].setTemperature(inletStream.getTemperature("C"), "C");
splitStream[i].run();
mixer.addStream(splitStream[i]);
}
mixer.run();
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102 changes: 43 additions & 59 deletions src/test/java/neqsim/processSimulation/processSystem/ProcessSystemRunTransientTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -563,18 +563,18 @@ public void testAntiSurgeControl() {
testSystem2.setMixingRule(2);

Stream stream1 = new Stream("Stream1", testSystem2);
stream1.setFlowRate(501.0, "kg/hr");
stream1.setFlowRate(500.0, "kg/hr");
stream1.setPressure(100.0, "bara");
stream1.setTemperature(55.0, "C");

Stream resycstream = stream1.clone();
resycstream.setFlowRate(0.001, "kg/hr");

ThrottlingValve valve1 = new ThrottlingValve("valve_1", stream1);
valve1.setOutletPressure(50.0);
valve1.setPercentValveOpening(50);
valve1.setCalculateSteadyState(false);

Stream resycstream = stream1.clone();
resycstream.setFlowRate(0.01, "kg/hr");

Separator separator1 = new Separator("separator_1");
separator1.addStream(valve1.getOutletStream());
separator1.addStream(resycstream);
Expand All @@ -593,7 +593,7 @@ public void testAntiSurgeControl() {

Cooler aftercooler = new Cooler("after cooler", compressor1.getOutletStream());
aftercooler.setOutTemperature(30.0, "C");
aftercooler.setCalculateSteadyState(true);
aftercooler.setCalculateSteadyState(false);

Separator separator2 = new Separator("separator_2");
separator2.addStream(aftercooler.getOutletStream());
Expand All @@ -605,22 +605,22 @@ public void testAntiSurgeControl() {
Stream gasfromsep2 = new Stream("gas from sep", separator2.getGasOutStream());

Splitter splitter = new Splitter("splitter1", gasfromsep2);
splitter.setSplitFactors(new double[] {0.9, 0.1});
splitter.setSplitFactors(new double[] {0.5, 0.5});
splitter.setCalculateSteadyState(false);

ThrottlingValve resycleValve =
ThrottlingValve recycleValve =
new ThrottlingValve("anti surge valve", splitter.getSplitStream(1));
resycleValve.setPressure(47.0);
resycleValve.setCalculateSteadyState(false);
resycleValve.setMinimumValveOpening(1.0);
resycleValve.setPercentValveOpening(2);
recycleValve.setPressure(47.0);
recycleValve.setCalculateSteadyState(false);
recycleValve.setMinimumValveOpening(1.0);
recycleValve.setPercentValveOpening(2);

SetPoint pressureset =
new SetPoint("HP pump set", resycleValve, "pressure", separator1.getGasOutStream());
new SetPoint("HP pump set", recycleValve, "pressure", separator1.getGasOutStream());

Recycle splitterResycle = new Recycle("resycle 1");
splitterResycle.addStream(resycleValve.getOutletStream());
splitterResycle.setOutletStream(resycstream);
Recycle recycle = new Recycle("resycle 1");
recycle.addStream(recycleValve.getOutletStream());
recycle.setOutletStream(resycstream);

ThrottlingValve valve2 = new ThrottlingValve("valve_2", splitter.getSplitStream(0));
valve2.setOutletPressure(50.0);
Expand All @@ -642,7 +642,7 @@ public void testAntiSurgeControl() {
surgeController.setReverseActing(true);
surgeController.setTransmitter(surgemonitor);
surgeController.setControllerSetPoint(1.0);
surgeController.setControllerParameters(10.0, 200.0, 0.0);
surgeController.setControllerParameters(1.0, 200.0, 0.0);
surgeController.setActive(true);

p.add(stream1);
Expand All @@ -655,38 +655,40 @@ public void testAntiSurgeControl() {
p.add(separator2);
p.add(gasfromsep2);
p.add(splitter);
p.add(resycleValve);
p.add(recycleValve);
p.add(pressureset);
p.add(splitterResycle);
p.add(recycle);
p.add(separatorPressureTransmitter);
p.add(valve2);
compressor1.setController(speedController);
resycleValve.setController(surgeController);
recycleValve.setController(surgeController);

p.run();
System.out.println(" speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
+ valve2.getOutletStream().getFlowRate("kg/hr") + " delta p "
+ (compressor1.getOutletStream().getPressure() - compressor1.getInletStream().getPressure())
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " antisurgeflow "
+ resycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ resycleValve.getPercentValveOpening());
assertEquals(100.0, compressor1.getOutletStream().getPressure(), 0.01);

neqsim.processSimulation.processEquipment.compressor.CompressorChartGenerator compchartgenerator =
new neqsim.processSimulation.processEquipment.compressor.CompressorChartGenerator(
compressor1);
compressor1.setCompressorChart(compchartgenerator.generateCompressorChart("normal"));
compressor1.getCompressorChart().setUseCompressorChart(true);
// compressor1.setCalculateSteadyState(true);
p.run();

System.out.println(" speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
+ valve2.getOutletStream().getFlowRate("kg/hr") + " delta p "
+ (compressor1.getOutletStream().getPressure() - compressor1.getInletStream().getPressure())
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " distancetosurge "
+ surgemonitor.getMeasuredValue("distance to surge") + " antisurgeflow "
+ recycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ recycleValve.getPercentValveOpening() + " compressorouttemperature "
+ compressor1.getOutStream().getTemperature("C"));

System.out.println("speed " + compressor1.getSpeed());
p.setTimeStep(1.0);

for (int i = 0; i < 50; i++) {
for (int i = 0; i < 100; i++) {
System.out.println("time " + i + " speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
Expand All @@ -696,16 +698,17 @@ public void testAntiSurgeControl() {
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " distancetosurge "
+ surgemonitor.getMeasuredValue("distance to surge") + " antisurgeflow "
+ resycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ resycleValve.getPercentValveOpening() + " feedtemp "
+ recycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ recycleValve.getPercentValveOpening() + " compressorouttemperature "
+ compressor1.getOutStream().getTemperature("C"));
p.runTransient();
}

valve2.setPercentValveOpening(5.0);

valve1.setPercentValveOpening(5.0);
// valve2.setPercentValveOpening(5.0);

for (int i = 0; i < 10; i++) {
for (int i = 0; i < 100; i++) {
System.out.println("time " + i + " speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
Expand All @@ -715,16 +718,16 @@ public void testAntiSurgeControl() {
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " distancetosurge "
+ surgemonitor.getMeasuredValue("distance to surge") + " antisurgeflow "
+ resycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ resycleValve.getPercentValveOpening() + " feedtemp "
+ recycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ recycleValve.getPercentValveOpening() + " compressorouttemperature "
+ compressor1.getOutStream().getTemperature("C"));
p.runTransient();
}

valve2.setPercentValveOpening(50);
valve1.setPercentValveOpening(50.0);
// valve2.setPercentValveOpening(5.0);

for (int i = 0; i < 0; i++) {
for (int i = 0; i < 100; i++) {
System.out.println("time " + i + " speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
Expand All @@ -734,30 +737,11 @@ public void testAntiSurgeControl() {
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " distancetosurge "
+ surgemonitor.getMeasuredValue("distance to surge") + " antisurgeflow "
+ resycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ resycleValve.getPercentValveOpening() + " feedtemp "
+ recycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ recycleValve.getPercentValveOpening() + " compressorouttemperature "
+ compressor1.getOutStream().getTemperature("C"));
p.runTransient();
}

resycleValve.setPercentValveOpening(50.0);
surgeController.setActive(true);

for (int i = 0; i < 0; i++) {
System.out.println("time " + i + " speed " + compressor1.getSpeed() + "feed flow "
+ stream1.getFlowRate("kg/hr") + " compressor flow rate "
+ compressor1.getInletStream().getFlowRate("kg/hr") + " out flow "
+ valve2.getOutletStream().getFlowRate("kg/hr") + " delta p "
+ (compressor1.getOutletStream().getPressure()
- compressor1.getInletStream().getPressure())
+ " pres inn " + compressor1.getInletStream().getPressure() + " pres out "
+ compressor1.getOutletStream().getPressure() + " distancetosurge "
+ surgemonitor.getMeasuredValue("distance to surge") + " antisurgeflow "
+ resycleValve.getOutletStream().getFlowRate("kg/hr") + " antisurgevalveopening "
+ resycleValve.getPercentValveOpening());
p.runTransient();
}
System.out.println("pres valve out " + resycleValve.getOutletPressure());
}

}

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