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Transient calc #573

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36f81b3
updated transient calc
EvenSol Nov 17, 2022
3c105e9
update
EvenSol Nov 17, 2022
2fff58e
Merge branch 'master' into transientCalc
asmfstatoil May 11, 2023
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5 changes: 4 additions & 1 deletion src/main/java/neqsim/processSimulation/processEquipment/separator/Separator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -302,7 +302,10 @@ public void runTransient(double dt, UUID id) {
// double liqoutMoles = liquidOutStream.getThermoSystem().getNumberOfMoles();
thermoSystem.init(3);
gasOutStream.getThermoSystem().init(3);
liquidOutStream.getThermoSystem().init(3);
if (liquidOutStream.getThermoSystem().hasPhaseType("oil")) {
liquidOutStream.getThermoSystem().init(3);
}

double volume1 = thermoSystem.getVolume();
// System.out.println("volume1 " + volume1);
double deltaEnergy = inletStreamMixer.getOutletStream().getThermoSystem().getEnthalpy()
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49 changes: 49 additions & 0 deletions src/test/java/neqsim/processSimulation/processSystem/ProcessSystemRunTransientTest.java
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Expand Up @@ -85,6 +85,7 @@ public void testDynamicCalculation() {
flowController.setControllerSetPoint(63.5);
flowController.setControllerParameters(0.1, 0.10, 0.0);

p = new ProcessSystem();
p.add(stream1);
p.add(valve1);
p.add(separator1);
Expand Down Expand Up @@ -170,6 +171,7 @@ public void testDynamicCalculation2() {
separatorPressureController.setControllerSetPoint(7.0);
separatorPressureController.setControllerParameters(0.5, 10.0, 0.0);

p = new ProcessSystem();
p.add(stream1);
p.add(valve1);

Expand Down Expand Up @@ -214,4 +216,51 @@ public void testDynamicCalculation2() {
}
}
}

@Test
public void testDynamicCalculation3() {
neqsim.thermo.system.SystemInterface testSystem2 =
new neqsim.thermo.system.SystemSrkEos((273.15 + 25.0), 100.00);
testSystem2.addComponent("methane", 1.1);
testSystem2.addComponent("n-heptane", 1.1);
testSystem2.setMixingRule(2);


Stream feedStreeam = new Stream("Purge Stream", testSystem2);

Separator separator1 = new Separator("separator_1");
separator1.addStream(feedStreeam);
separator1.setCalculateSteadyState(false);
separator1.setInternalDiameter(1.0);
separator1.setSeparatorLength(3.0);

ThrottlingValve gasValve = new ThrottlingValve("valve_gas", separator1.getGasOutStream());
gasValve.setOutletPressure(7.0);
gasValve.setPercentValveOpening(50);

ThrottlingValve liquidValve = new ThrottlingValve("valve_gas", separator1.getLiquidOutStream());
liquidValve.setOutletPressure(7.0);
liquidValve.setPercentValveOpening(50);

p = new ProcessSystem();
p.add(feedStreeam);
p.add(separator1);
p.add(gasValve);
p.add(liquidValve);

p.run();

feedStreeam.setFlowRate(1e-10, "kg/sec");
liquidValve.setPercentValveOpening(1e-10);
System.out.println("pressure " + separator1.getPressure());
p.runTransient(0.01);
System.out.println("pressure " + separator1.getPressure());
p.runTransient(0.01);
System.out.println("pressure " + separator1.getPressure());
p.runTransient(0.01);
System.out.println("pressure " + separator1.getPressure());
p.runTransient(0.01);
System.out.println("pressure " + separator1.getPressure());

}
}