From 2f43e3f8dfb8122278d439f4d407d72a2ec0cf37 Mon Sep 17 00:00:00 2001
From: Even Solbraa <41290109+EvenSol@users.noreply.github.com>
Date: Thu, 9 May 2024 22:38:43 +0200
Subject: [PATCH] update units (#1008)

---
 src/main/java/neqsim/util/unit/Units.java       | 14 ++++++++------
 .../neqsim/thermo/system/SystemThermoTest.java  | 17 +++++++++++++++++
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/src/main/java/neqsim/util/unit/Units.java b/src/main/java/neqsim/util/unit/Units.java
index d3db0eef1..a221d9ce3 100644
--- a/src/main/java/neqsim/util/unit/Units.java
+++ b/src/main/java/neqsim/util/unit/Units.java
@@ -30,9 +30,10 @@ public UnitDescription(String symbol, String symbolName) {
   private static HashMap<String, UnitDescription> siUnits = new HashMap<>();
   private static HashMap<String, UnitDescription> fieldUnits = new HashMap<>();
 
-  private static String[] pressureUnits = new String[] { "Pa", "bara", "barg", "psi", "psig", "psia" };
-  private static String[] temperatureUnits = new String[] { "K", "C", "F", "R" };
-  private static String[] molarVolumeUnits = new String[] { "mol/m3", "litre/m3", "ft3/lbmole" };
+  private static String[] pressureUnits =
+      new String[] {"Pa", "bara", "barg", "psi", "psig", "psia"};
+  private static String[] temperatureUnits = new String[] {"K", "C", "F", "R"};
+  private static String[] molarVolumeUnits = new String[] {"mol/m3", "litre/m3", "ft3/lbmole"};
 
   public Units() {
     if (activeUnits.size() == 0) {
@@ -48,15 +49,16 @@ public Units() {
       activeUnits.put("JT coefficient", new UnitDescription("C/bar", "Celsius per bar"));
       activeUnits.put("speed of sound", new UnitDescription("m/sec", "meter per second"));
       activeUnits.put("Heat Capacity (Cv)",
-          new UnitDescription("kJ/kg*K", "kilo joule per kg and Kelvin"));
+          new UnitDescription("kJ/kgK", "kilo joule per kg and Kelvin"));
       activeUnits.put("Heat Capacity (Cp)",
-          new UnitDescription("kJ/kg*K", "kilo joule per kg and Kelvin"));
+          new UnitDescription("kJ/kgK", "kilo joule per kg and Kelvin"));
       activeUnits.put("Molar Mass", new UnitDescription("kg/mol", "kilo gram per kilo mole"));
       activeUnits.put("molar volume", new UnitDescription("m3/mol", "cubic metre per mole"));
       activeUnits.put("mass flow", new UnitDescription("kg/hr", "kg per hour"));
       activeUnits.put("molar flow", new UnitDescription("mole/hr", "mole per hour"));
       activeUnits.put("volume flow", new UnitDescription("m3/hr", "cubic metre per hour"));
-      activeUnits.put("standard volume flow", new UnitDescription("Sm3/hr", "standard cubic metre per hour"));
+      activeUnits.put("standard volume flow",
+          new UnitDescription("Sm3/hr", "standard cubic metre per hour"));
 
       siUnits.putAll(activeUnits); // Makes a copy of activeUnits
       siUnits.put("temperature", new UnitDescription("K", "Kelvin"));
diff --git a/src/test/java/neqsim/thermo/system/SystemThermoTest.java b/src/test/java/neqsim/thermo/system/SystemThermoTest.java
index 4f710bcfe..be86f1de2 100644
--- a/src/test/java/neqsim/thermo/system/SystemThermoTest.java
+++ b/src/test/java/neqsim/thermo/system/SystemThermoTest.java
@@ -28,6 +28,23 @@ public static void setUp() {
     testSystem.initProperties();
   }
 
+  /**
+   * <p>
+   * setUp.
+   * </p>
+   */
+  @Test
+  public void testCp() {
+    testSystem = new neqsim.thermo.system.SystemPrEos(273.15 + 40.0, 1.0);
+    testSystem.addComponent("methane", 10.01);
+    testSystem.addComponent("nC20", 10.68);
+    testSystem.setMixingRule("classic");
+    ThermodynamicOperations testOps = new ThermodynamicOperations(testSystem);
+    testOps.TPflash();
+    testSystem.initProperties();
+    assertEquals(2.274301427480528, testSystem.getPhase(0).getCp("kJ/kgK"), 1e-6);
+  }
+
   /**
    * <p>
    * test setPressure