update

equinor · Dec 11, 2023 · b80d89a · b80d89a
1 parent cdd4f76
commit b80d89a
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Showing 2 changed files with 7 additions and 4 deletions.
diff --git a/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java b/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java
@@ -688,8 +688,10 @@ public void runTransient(double dt, UUID id) {
     inStream.getThermoSystem().init(3);
     outStream.getThermoSystem().init(3);
 
-    double polytropicHead = outStream.getThermoSystem().getEnthalpy("kJ/kg")
-        - inStream.getThermoSystem().getEnthalpy("kJ/kg");
+    polytropicEfficiency =
+        compressorChart.getPolytropicEfficiency(inStream.getFlowRate("m3/hr"), speed);
+    double polytropicHead = (outStream.getThermoSystem().getEnthalpy("kJ/kg")
+        - inStream.getThermoSystem().getEnthalpy("kJ/kg")) * polytropicEfficiency / 100.0;
     // polytropicHead = 106.44278644;
     polytropicFluidHead = polytropicHead;
     // System.out.println("polytropic head " + polytropicFluidHead + " pres inn "
@@ -712,6 +714,7 @@ public void runTransient(double dt, UUID id) {
     } catch (Exception e) {
       logger.error(e.getMessage());
     }
+
     dH = polytropicFluidHead * 1000.0 * thermoSystem.getMolarMass() / getPolytropicEfficiency()
         * inStream.getThermoSystem().getTotalNumberOfMoles();
     setCalculationIdentifier(id);

diff --git a/src/test/java/neqsim/processSimulation/processSystem/ProcessSystemRunTransientTest.java b/src/test/java/neqsim/processSimulation/processSystem/ProcessSystemRunTransientTest.java
@@ -708,7 +708,7 @@ public void testAntiSurgeControl() {
     valve1.setPercentValveOpening(5.0);
     // valve2.setPercentValveOpening(5.0);
 
-    for (int i = 0; i < 100; i++) {
+    for (int i = 0; i < 200; 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 "
@@ -727,7 +727,7 @@ public void testAntiSurgeControl() {
     valve1.setPercentValveOpening(50.0);
     // valve2.setPercentValveOpening(5.0);
 
-    for (int i = 0; i < 100; i++) {
+    for (int i = 0; i < 1000; 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 "