From 89ab2f022766e3147e46bfbbb6c20497a8a6f6c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=85smund=20V=C3=A5ge=20Fannemel?= <fannemel@gmail.com>
Date: Thu, 13 Jan 2022 19:17:01 +0100
Subject: [PATCH] refact: fix typo numcompresorsteps -> numcompressorsteps

---
 .../compressor/Compressor.java                | 2273 +++++++++--------
 .../util/example/process1.java                |    6 +-
 2 files changed, 1154 insertions(+), 1125 deletions(-)

diff --git a/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java b/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java
index 98907c86c..bdff2f894 100644
--- a/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java
+++ b/src/main/java/neqsim/processSimulation/processEquipment/compressor/Compressor.java
@@ -26,1127 +26,1154 @@
  * @version $Id: $Id
  */
 public class Compressor extends ProcessEquipmentBaseClass implements CompressorInterface {
-	private static final long serialVersionUID = 1000;
-	static Logger logger = LogManager.getLogger(Compressor.class);
-	public SystemInterface thermoSystem;
-	public StreamInterface inletStream;
-	public StreamInterface outStream;
-	private double outTemperature = 298.15;
-	private boolean useOutTemperature = false;
-	public double dH = 0.0;
-	public double inletEnthalpy = 0;
-	public double pressure = 0.0;
-	private int speed = 3000;
-	public double isentropicEfficiency = 1.0, polytropicEfficiency = 1.0;
-	public boolean usePolytropicCalc = false;
-	public boolean powerSet = false;
-	private CompressorChartInterface compressorChart = new CompressorChart();
-	private AntiSurge antiSurge = new AntiSurge();
-	private double polytropicHead = 0;
-	private double polytropicFluidHead = 0, polytropicHeadMeter = 0.0;
-	private double polytropicExponent = 0;
-	private int numberOfCompresorCalcSteps = 40;
-	private boolean useRigorousPolytropicMethod = false;
-	private boolean useGERG2008 = false;
-	private String pressureUnit = "bara";
-	private String polytropicMethod = "detailed";
-
-	/**
-	 * <p>
-	 * Constructor for Compressor.
-	 * </p>
-	 */
-	public Compressor() {
-		mechanicalDesign = new CompressorMechanicalDesign(this);
-	}
-
-	/**
-	 * <p>
-	 * Constructor for Compressor.
-	 * </p>
-	 *
-	 * @param inletStream a
-	 *                    {@link neqsim.processSimulation.processEquipment.stream.StreamInterface}
-	 *                    object
-	 */
-	public Compressor(StreamInterface inletStream) {
-		this();
-		setInletStream(inletStream);
-	}
-
-	/**
-	 * <p>
-	 * Constructor for Compressor.
-	 * </p>
-	 *
-	 * @param name        a {@link java.lang.String} object
-	 * @param inletStream a
-	 *                    {@link neqsim.processSimulation.processEquipment.stream.StreamInterface}
-	 *                    object
-	 */
-	public Compressor(String name, StreamInterface inletStream) {
-		this();
-		this.name = name;
-		setInletStream(inletStream);
-	}
-
-	/**
-	 * <p>
-	 * Constructor for Compressor.
-	 * </p>
-	 *
-	 * @param interpolateMapLookup a boolean
-	 */
-	public Compressor(boolean interpolateMapLookup) {
-		this();
-		if (interpolateMapLookup) {
-			compressorChart = new CompressorChartAlternativeMapLookup();
-		}
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void setInletStream(StreamInterface inletStream) {
-		this.inletStream = inletStream;
-		try {
-			this.outStream = inletStream.clone();
-		} catch (Exception e) {
-			e.printStackTrace();
-		}
-	}
-
-	/**
-	 * <p>
-	 * solveAntiSurge.
-	 * </p>
-	 */
-	public void solveAntiSurge() {
-		if (getAntiSurge().isActive()) {
-			// ....
-		}
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void setOutletPressure(double pressure) {
-		this.pressure = pressure;
-	}
-
-	/**
-	 * <p>
-	 * setOutletPressure.
-	 * </p>
-	 *
-	 * @param pressure a double
-	 * @param unit     a {@link java.lang.String} object
-	 */
-	public void setOutletPressure(double pressure, String unit) {
-		this.pressure = pressure;
-		this.pressureUnit = unit;
-	}
-
-	/**
-	 * <p>
-	 * getOutletPressure.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getOutletPressure() {
-		return pressure;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public double getEnergy() {
-		return getTotalWork();
-	}
-
-	/**
-	 * <p>
-	 * getPower.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getPower() {
-		return getTotalWork();
-	}
-
-	/**
-	 * <p>
-	 * getPower.
-	 * </p>
-	 *
-	 * @param unit a {@link java.lang.String} object
-	 * @return a double
-	 */
-	public double getPower(String unit) {
-		double conversionFactor = 1.0;
-		if (unit.equals("MW")) {
-			conversionFactor = 1.0 / 1.0e6;
-		} else if (unit.equals("kW")) {
-			conversionFactor = 1.0 / 1.0e3;
-		}
-		return conversionFactor * getPower();
-	}
-
-	/**
-	 * <p>
-	 * setPower.
-	 * </p>
-	 *
-	 * @param p a double
-	 */
-	public void setPower(double p) {
-		powerSet = true;
-		dH = p;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public StreamInterface getOutStream() {
-		return outStream;
-	}
-
-	/**
-	 * <p>
-	 * getInStream.
-	 * </p>
-	 *
-	 * @return a
-	 *         {@link neqsim.processSimulation.processEquipment.stream.StreamInterface}
-	 *         object
-	 */
-	public StreamInterface getInStream() {
-		return inletStream;
-	}
-
-	/**
-	 * Calculates polytropic or isentropic efficiency
-	 *
-	 * @param outTemperature a double
-	 * @return a double
-	 */
-	public double solveEfficiency(double outTemperature) {
-		double funk = 0.0, funkOld = 0.0;
-		double newPoly;
-		double dfunkdPoly = 100.0, dPoly = 100.0, oldPoly = outTemperature;
-		useOutTemperature = false;
-		run();
-		useOutTemperature = true;
-		int iter = 0;
-		boolean useOld = usePolytropicCalc;
-		// usePolytropicCalc = true;
-		// System.out.println("use polytropic " + usePolytropicCalc);
-		do {
-			iter++;
-			funk = getThermoSystem().getTemperature() - outTemperature;
-			dfunkdPoly = (funk - funkOld) / dPoly;
-			newPoly = polytropicEfficiency - funk / dfunkdPoly;
-			if (iter <= 1) {
-				newPoly = polytropicEfficiency + 0.01;
-			}
-			oldPoly = polytropicEfficiency;
-			polytropicEfficiency = newPoly;
-			isentropicEfficiency = newPoly;
-			dPoly = polytropicEfficiency - oldPoly;
-			funkOld = funk;
-			useOutTemperature = false;
-			run();
-			useOutTemperature = true;
-			// System.out.println("temperature compressor " +
-			// getThermoSystem().getTemperature() + " funk " + funk + " polytropic " +
-			// polytropicEfficiency);
-		} while ((Math.abs((getThermoSystem().getTemperature() - outTemperature)) > 1e-5 || iter < 3) && (iter < 50));
-		usePolytropicCalc = useOld;
-		return newPoly;
-	}
-
-	/**
-	 * <p>
-	 * findOutPressure.
-	 * </p>
-	 *
-	 * @param hinn                 a double
-	 * @param hout                 a double
-	 * @param polytropicEfficiency a double
-	 * @return a double
-	 */
-	public double findOutPressure(double hinn, double hout, double polytropicEfficiency) {
-		double entropy = getThermoSystem().getEntropy();
-		getThermoSystem().setPressure(getThermoSystem().getPressure() + 1.0, pressureUnit);
-
-		// System.out.println("entropy inn.." + entropy);
-		ThermodynamicOperations thermoOps = new ThermodynamicOperations(getThermoSystem());
-		thermoOps.PSflash(entropy);
-
-		double houtGuess = hinn + dH / polytropicEfficiency;
-		thermoOps.PHflash(houtGuess, 0);
-		System.out.println("TEMPERATURE .." + getThermoSystem().getTemperature());
-		return getThermoSystem().getPressure();
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void run() {
-		thermoSystem = inletStream.getThermoSystem().clone();
-		ThermodynamicOperations thermoOps = new ThermodynamicOperations(getThermoSystem());
-		thermoOps = new ThermodynamicOperations(getThermoSystem());
-		getThermoSystem().init(3);
-		getThermoSystem().initPhysicalProperties("density");
-		double presinn = getThermoSystem().getPressure();
-		double hinn = getThermoSystem().getEnthalpy();
-		double densInn = getThermoSystem().getDensity();
-		double entropy = getThermoSystem().getEntropy();
-
-		if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-			double[] gergProps;
-			gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-			hinn = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-			entropy = gergProps[8] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-		}
-
-		inletEnthalpy = hinn;
-		boolean surgeCheck = false;
-		double orginalMolarFLow = thermoSystem.getTotalNumberOfMoles();
-		double fractionAntiSurge = 0.0;
-		double kappa = 0.0;
-		if (useOutTemperature) {
-			if (useRigorousPolytropicMethod) {
-				solveEfficiency(outTemperature);
-				polytropicHead = getPower() / getThermoSystem().getFlowRate("kg/sec") / 1000.0
-						* getPolytropicEfficiency();
-				polytropicFluidHead = polytropicHead;
-				polytropicHeadMeter = polytropicFluidHead * 1000.0 / ThermodynamicConstantsInterface.gravity;
-				return;
-			} else {
-				double MW = thermoSystem.getMolarMass();
-				thermoSystem.setPressure(getOutletPressure(), pressureUnit);
-				thermoOps.PSflash(entropy);
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					thermoOps.PSflashGERG2008(entropy);
-				}
-				thermoSystem.initPhysicalProperties("density");
-				double densOutIsentropic = thermoSystem.getDensity("kg/m3");
-				double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					double[] gergProps;
-					gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-					densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
-					enthalpyOutIsentropic = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-				}
-				thermoSystem.setTemperature(outTemperature);
-				thermoOps.TPflash();
-				thermoSystem.init(2);
-				thermoSystem.initPhysicalProperties("density");
-				double outEnthalpy = thermoSystem.getEnthalpy();
-				double densOut = thermoSystem.getDensity("kg/m3");
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					double[] gergProps;
-					gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-					outEnthalpy = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-					densOut = getThermoSystem().getPhase(0).getDensity_GERG2008();
-				}
-				dH = outEnthalpy - inletEnthalpy;
-				// System.out.println("total power " +
-				// dH/getThermoSystem().getFlowRate("kg/sec"));
-
-				double n = Math.log(getOutletPressure() / presinn) / Math.log(densOut / densInn);
-				double CF = (enthalpyOutIsentropic - inletEnthalpy) / thermoSystem.getFlowRate("kg/sec")
-						/ (n / (n - 1.0) * (getOutletPressure() * 1e5 / densOutIsentropic - presinn * 1e5 / densInn));
-
-				double F1 = thermoSystem.getTotalNumberOfMoles();
-				double polytropicPower = F1 * MW * (n / (n - 1.0)) * CF * presinn * 1e5 / densInn
-						* (Math.pow((getOutletPressure() / presinn), (n - 1.0) / n) - 1.0);
-				// System.out.println("polytropic power " +
-				// polytropicPower/getThermoSystem().getFlowRate("kg/sec"));
-				polytropicEfficiency = polytropicPower / getThermoSystem().getFlowRate("kg/sec")
-						/ (dH / getThermoSystem().getFlowRate("kg/sec"));
-				isentropicEfficiency = (enthalpyOutIsentropic - inletEnthalpy) / dH;
-
-				// isentropicEfficiency = (getThermoSystem().getEnthalpy() - hinn) / dH;
-
-				double k = Math.log(getOutletPressure() / presinn) / Math.log(densOutIsentropic / densInn);
-				double term1 = Math.pow(getOutletPressure() / presinn, (n - 1.0) / n) - 1.0;
-				double term2 = n / (n - 1.0) * (k - 1.0) / k;
-				double term3 = Math.pow(getOutletPressure() / presinn, (k - 1.0) / k) - 1.0;
-				double polyPow = term1 * term2 / term3 * isentropicEfficiency;
-				polytropicEfficiency = polyPow;
-				polytropicPower = dH * polytropicEfficiency;
-				// System.out.println("polytropic eff " + polytropicEfficiency);
-				// System.out.println("isentropic eff " + isentropicEfficiency);
-				polytropicFluidHead = polytropicPower / getThermoSystem().getFlowRate("kg/sec") / 1000.0;
-				polytropicHeadMeter = polytropicFluidHead * 1000.0 / 9.81;
-				polytropicHead = polytropicFluidHead;
-				if (getCompressorChart().isUseCompressorChart()) {
-					if (getCompressorChart().getHeadUnit().equals("meter")) {
-						polytropicHead = polytropicHeadMeter;
-					} else {
-						polytropicHead = polytropicFluidHead;
-					}
-				}
-				outStream.setThermoSystem(getThermoSystem());
-
-				return;
-			}
-		}
-		if (compressorChart.isUseCompressorChart()) {
-			do {
-				double actualFlowRate = thermoSystem.getFlowRate("m3/hr");
-				double z_inlet = thermoSystem.getZ();
-				double MW = thermoSystem.getMolarMass();
-
-				if (getCompressorChart().useRealKappa()) {
-					kappa = thermoSystem.getGamma();
-				} else {
-					kappa = thermoSystem.getGamma2();
-				}
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					double[] gergProps;
-					gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-					actualFlowRate *= gergProps[1]/z_inlet;
-					kappa = gergProps[14];
-				}
-				
-				double polytropEff = getCompressorChart().getPolytropicEfficiency(actualFlowRate,
-						getSpeed());
-				setPolytropicEfficiency(polytropEff / 100.0);
-				polytropicHead = getCompressorChart().getPolytropicHead(actualFlowRate, getSpeed());
-				double temperature_inlet = thermoSystem.getTemperature();
-				double n = 1.0 / (1.0 - (kappa - 1.0) / kappa * 1.0 / (polytropEff / 100.0));
-				polytropicExponent = n;
-				if (getCompressorChart().getHeadUnit().equals("meter")) {
-					polytropicFluidHead = polytropicHead / 1000.0 * 9.81;
-					polytropicHeadMeter = polytropicHead;
-				} else {
-					polytropicFluidHead = polytropicHead;
-					polytropicHeadMeter = polytropicHead * 1000.0 / 9.81;
-				}
-				double pressureRatio = Math.pow(
-						(polytropicFluidHead * 1000.0 + (n / (n - 1.0) * z_inlet * 8.314 * (temperature_inlet) / MW))
-								/ (n / (n - 1.0) * z_inlet * 8.314 * (temperature_inlet) / MW),
-						n / (n - 1.0));
-				setOutletPressure(thermoSystem.getPressure() * pressureRatio);
-				if (getAntiSurge().isActive()) {
-					logger.info("surge flow " + getCompressorChart().getSurgeCurve().getSurgeFlow(polytropicHead)
-							+ " m3/hr");
-					surgeCheck = isSurge(polytropicHead, actualFlowRate);
-				}
-				if (getCompressorChart().getStoneWallCurve().isActive()) {
-					// logger.info("stone wall? " + isStoneWall(polytropicHead,
-					// thermoSystem.getFlowRate("m3/hr")));
-				}
-				if (surgeCheck && getAntiSurge().isActive()) {
-					thermoSystem.setTotalNumberOfMoles(
-							getAntiSurge().getSurgeControlFactor() * thermoSystem.getTotalNumberOfMoles());
-					thermoSystem.init(3);
-					fractionAntiSurge = thermoSystem.getTotalNumberOfMoles() / orginalMolarFLow - 1.0;
-					getAntiSurge().setCurrentSurgeFraction(fractionAntiSurge);
-				}
-
-				powerSet = true;
-				dH = polytropicFluidHead * 1000.0 * thermoSystem.getMolarMass() / getPolytropicEfficiency()
-						* thermoSystem.getTotalNumberOfMoles();
-			} while (surgeCheck && getAntiSurge().isActive());
-		}
-
-		if (usePolytropicCalc) {
-			if (powerSet) {
-				double hout = hinn * (1 - 0 + fractionAntiSurge) + dH;
-				thermoSystem.setPressure(pressure, pressureUnit);
-				thermoOps = new ThermodynamicOperations(getThermoSystem());
-				thermoOps.PHflash(hout, 0);
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					thermoOps.PHflashGERG2008(hout);
-				}
-			} else {
-				if (polytropicMethod.equals("detailed")) {
-					int numbersteps = numberOfCompresorCalcSteps;
-					double dp = (pressure - getThermoSystem().getPressure()) / (1.0 * numbersteps);
-					for (int i = 0; i < numbersteps; i++) {
-						entropy = getThermoSystem().getEntropy();
-						hinn = getThermoSystem().getEnthalpy();
-						if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-							double[] gergProps;
-							gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-							hinn = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-							entropy = gergProps[8] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-						}
-						getThermoSystem().setPressure(getThermoSystem().getPressure() + dp, pressureUnit);
-						thermoOps = new ThermodynamicOperations(getThermoSystem());
-						if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-							thermoOps.PSflashGERG2008(entropy);
-						} else {
-							thermoOps.PSflash(entropy);
-						}
-						double newEnt = getThermoSystem().getEnthalpy();
-						if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-							double[] gergProps;
-							gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-							newEnt = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-						}
-						double hout = hinn + (newEnt - hinn) / polytropicEfficiency;
-						thermoOps.PHflash(hout, 0);
-						if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-							thermoOps.PHflashGERG2008(hout);
-						}
-					}
-				} else if (polytropicMethod.equals("schultz")) {
-					double schultzX = thermoSystem.getTemperature() / thermoSystem.getVolume()
-							* thermoSystem.getdVdTpn() - 1.0;
-					double schultzY = -thermoSystem.getPressure() / thermoSystem.getVolume() * thermoSystem.getdVdPtn();
-					thermoSystem.setPressure(getOutletPressure(), pressureUnit);
-					thermoOps.PSflash(entropy);
-					thermoSystem.initProperties();
-					double densOutIsentropic = thermoSystem.getDensity("kg/m3");
-					double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
-					if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-						thermoOps.PSflashGERG2008(entropy);
-						double[] gergProps;
-						gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-						densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
-						enthalpyOutIsentropic = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-					}
-					double isenthalpicvolumeexponent = Math.log(getOutletPressure() / presinn)
-							/ Math.log(densOutIsentropic / densInn);
-					double nV = (1.0 + schultzX)
-							/ (1.0 / isenthalpicvolumeexponent * (1.0 / polytropicEfficiency + schultzX)
-									- schultzY * (1.0 / polytropicEfficiency - 1.0));
-					double term = nV / (nV - 1.0);
-					double term2 = 1e5 * (getOutletPressure() / densOutIsentropic - presinn / densInn);
-					double term3 = isenthalpicvolumeexponent / (isenthalpicvolumeexponent - 1.0);
-					double CF = (enthalpyOutIsentropic - inletEnthalpy) / (term2 * term3);
-					dH = term * CF * 1e5 * presinn / densInn
-							* (Math.pow(getOutletPressure() / presinn, 1.0 / term) - 1.0) / polytropicEfficiency;
-					double hout = hinn + dH;
-					thermoOps = new ThermodynamicOperations(getThermoSystem());
-					thermoOps.PHflash(hout, 0);
-					if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-						thermoOps.PHflashGERG2008(hout);
-					}
-				} else {
-					thermoSystem.setPressure(getOutletPressure(), pressureUnit);
-					thermoOps.PSflash(entropy);
-					thermoSystem.initProperties();
-					double densOutIsentropic = thermoSystem.getDensity("kg/m3");
-					double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
-					if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-						thermoOps.PSflashGERG2008(entropy);
-						double[] gergProps;
-						gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-						densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
-						enthalpyOutIsentropic = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-					}
-					double isenthalpicvolumeexponent = Math.log(getOutletPressure() / presinn)
-							/ Math.log(densOutIsentropic / densInn);
-					double term = isenthalpicvolumeexponent / (isenthalpicvolumeexponent - 1.0)
-							* (polytropicEfficiency);
-					double term2 = 1e5 * (getOutletPressure() / densOutIsentropic - presinn / densInn);
-					double CF = (enthalpyOutIsentropic - inletEnthalpy) / (term * term2);
-					dH = term * CF * 1e5 * presinn / densInn
-							* (Math.pow(getOutletPressure() / presinn, 1.0 / term) - 1.0);
-					double hout = hinn + dH;
-					thermoOps = new ThermodynamicOperations(getThermoSystem());
-					thermoOps.PHflash(hout, 0);
-					if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-						thermoOps.PHflashGERG2008(hout);
-					}
-				}
-			}
-		} else {
-			getThermoSystem().setPressure(pressure, pressureUnit);
-			// System.out.println("entropy inn.." + entropy);
-			thermoOps = new ThermodynamicOperations(getThermoSystem());
-			thermoOps.PSflash(entropy);
-			if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-				thermoOps.PSflashGERG2008(entropy);
-			}
-			// double densOutIdeal = getThermoSystem().getDensity();
-			double newEnt = getThermoSystem().getEnthalpy();
-			if (!powerSet) {
-				dH = (getThermoSystem().getEnthalpy() - hinn) / isentropicEfficiency;
-				if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-					double[] gergProps;
-					gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-					newEnt = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-					dH = (newEnt - hinn) / isentropicEfficiency;
-				}
-			}
-			double hout = hinn + dH;
-			isentropicEfficiency = (newEnt - hinn) / dH;
-			dH = hout - hinn;
-			thermoOps = new ThermodynamicOperations(getThermoSystem());
-			thermoOps.PHflash(hout, 0);
-			if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-				thermoOps.PHflashGERG2008(hout);
-			}
-		}
-		// thermoSystem.display();
-
-		if (getCompressorChart().isUseCompressorChart() && getAntiSurge().isActive()) {
-			thermoSystem.setTotalNumberOfMoles(orginalMolarFLow);
-			thermoSystem.init(3);
-		}
-		thermoSystem.initProperties();
-		outStream.setThermoSystem(getThermoSystem());
-
-		polytropicFluidHead = getPower() / getThermoSystem().getFlowRate("kg/sec") / 1000.0 * getPolytropicEfficiency();
-		polytropicHeadMeter = polytropicFluidHead * 1000.0 / 9.81;
-	}
-
-	/**
-	 * <p>
-	 * generateCompressorCurves.
-	 * </p>
-	 */
-	public void generateCompressorCurves() {
-		double flowRef = getThermoSystem().getFlowRate("m3/hr");
-		double factor = flowRef / 4000.0;
-		double[] chartConditions = new double[] { 0.3, 1.0, 1.0, 1.0 };
-		double[] speed = new double[] { 12913, 12298, 11683, 11098, 10453, 9224, 8609, 8200 };
-		double[][] flow = new double[][] {
-				{ 2789.1285, 3174.0375, 3689.2288, 4179.4503, 4570.2768, 4954.7728, 5246.0329, 5661.0331 },
-				{ 2571.1753, 2943.7254, 3440.2675, 3837.4448, 4253.0898, 4668.6643, 4997.1926, 5387.4952 },
-				{ 2415.3793, 2763.0706, 3141.7095, 3594.7436, 4047.6467, 4494.1889, 4853.7353, 5138.7858 },
-				{ 2247.2043, 2799.7342, 3178.3428, 3656.1551, 4102.778, 4394.1591, 4648.3224, 4840.4998 },
-				{ 2072.8397, 2463.9483, 2836.4078, 3202.5266, 3599.6333, 3978.0203, 4257.0022, 4517.345 },
-				{ 1835.9552, 2208.455, 2618.1322, 2940.8034, 3244.7852, 3530.1279, 3753.3738, 3895.9746 },
-				{ 1711.3386, 1965.8848, 2356.9431, 2685.9247, 3008.5154, 3337.2855, 3591.5092 },
-				{ 1636.5807, 2002.8708, 2338.0319, 2642.1245, 2896.4894, 3113.6264, 3274.8764, 3411.2977 } };
-
-		for (int i = 0; i < flow.length; i++) {
-			for (int j = 0; j < flow[i].length; j++) {
-				flow[i][j] *= factor;
-			}
-		}
-
-		double[][] head = new double[][] { { 80.0375, 78.8934, 76.2142, 71.8678, 67.0062, 60.6061, 53.0499, 39.728 },
-				{ 72.2122, 71.8369, 68.9009, 65.8341, 60.7167, 54.702, 47.2749, 35.7471 },
-				{ 65.1576, 64.5253, 62.6118, 59.1619, 54.0455, 47.0059, 39.195, 31.6387 },
-				{ 58.6154, 56.9627, 54.6647, 50.4462, 44.4322, 38.4144, 32.9084, 28.8109 },
-				{ 52.3295, 51.0573, 49.5283, 46.3326, 42.3685, 37.2502, 31.4884, 25.598 },
-				{ 40.6578, 39.6416, 37.6008, 34.6603, 30.9503, 27.1116, 23.2713, 20.4546 },
-				{ 35.2705, 34.6359, 32.7228, 31.0645, 27.0985, 22.7482, 18.0113 },
-				{ 32.192, 31.1756, 29.1329, 26.833, 23.8909, 21.3324, 18.7726, 16.3403 }, };
-
-		for (int i = 0; i < head.length; i++) {
-			for (int j = 0; j < head[i].length; j++) {
-				head[i][j] *= factor / 5.0;
-			}
-		}
-		double[][] polyEff = new double[][] {
-				{ 77.2452238409573, 79.4154186459363, 80.737960012489, 80.5229826589649, 79.2210931638144,
-						75.4719133864634, 69.6034181197298, 58.7322388482707 },
-				{ 77.0107837113504, 79.3069974136389, 80.8941189021135, 80.7190194665918, 79.5313242980328,
-						75.5912622896367, 69.6846136362097, 60.0043057990909 },
-				{ 77.0043065299874, 79.1690958847856, 80.8038169975675, 80.6543975614197, 78.8532389102705,
-						73.6664774270613, 66.2735600426727, 57.671664571658 },
-				{ 77.0716623789093, 80.4629750233093, 81.1390811169072, 79.6374242667478, 75.380928428817,
-						69.5332969549779, 63.7997587622339, 58.8120614497758 },
-				{ 76.9705872525642, 79.8335492585324, 80.9468133671171, 80.5806471927835, 78.0462158225426,
-						73.0403707523258, 66.5572286338589, 59.8624822515064 },
-				{ 77.5063036680357, 80.2056198362559, 81.0339108025933, 79.6085962687939, 76.3814534404405,
-						70.8027503005902, 64.6437367160571, 60.5299349982342 },
-				{ 77.8175271586685, 80.065165942218, 81.0631362122632, 79.8955051771299, 76.1983240929369,
-						69.289982774309, 60.8567149372229 },
-				{ 78.0924334304045, 80.9353551568667, 80.7904437766234, 78.8639325223295, 75.2170936751143,
-						70.3105081673411, 65.5507568533569, 61.0391468300337 } };
-
-		getCompressorChart().setCurves(chartConditions, speed, flow, head, polyEff);
-		getCompressorChart().setHeadUnit("kJ/kg");
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void displayResult() {
-		DecimalFormat nf = new DecimalFormat();
-		nf.setMaximumFractionDigits(5);
-		nf.applyPattern("#.#####E0");
-
-		JDialog dialog = new JDialog(new JFrame(), "Results from TPflash");
-		Container dialogContentPane = dialog.getContentPane();
-		dialogContentPane.setLayout(new FlowLayout());
-
-		getThermoSystem().initPhysicalProperties();
-		String[][] table = new String[50][5];
-		String[] names = { "", "Phase 1", "Phase 2", "Phase 3", "Unit" };
-		table[0][0] = "";
-		table[0][1] = "";
-		table[0][2] = "";
-		table[0][3] = "";
-		StringBuffer buf = new StringBuffer();
-		FieldPosition test = new FieldPosition(0);
-
-		for (int i = 0; i < getThermoSystem().getNumberOfPhases(); i++) {
-			for (int j = 0; j < getThermoSystem().getPhases()[0].getNumberOfComponents(); j++) {
-				table[j + 1][0] = getThermoSystem().getPhases()[0].getComponents()[j].getName();
-				buf = new StringBuffer();
-				table[j + 1][i + 1] = nf.format(getThermoSystem().getPhases()[i].getComponents()[j].getx(), buf, test)
-						.toString();
-				table[j + 1][4] = "[-]";
-			}
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][0] = "Density";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][i + 1] = nf
-					.format(getThermoSystem().getPhases()[i].getPhysicalProperties().getDensity(), buf, test)
-					.toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][4] = "[kg/m^3]";
-
-			// Double.longValue(thermoSystem.getPhases()[i].getBeta());
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][0] = "PhaseFraction";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][i + 1] = nf
-					.format(getThermoSystem().getPhases()[i].getBeta(), buf, test).toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][4] = "[-]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][0] = "MolarMass";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][i + 1] = nf
-					.format(getThermoSystem().getPhases()[i].getMolarMass() * 1000, buf, test).toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][4] = "[kg/kmol]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][0] = "Cp";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][i + 1] = nf
-					.format((getThermoSystem().getPhases()[i].getCp()
-							/ getThermoSystem().getPhases()[i].getNumberOfMolesInPhase() * 1.0
-							/ getThermoSystem().getPhases()[i].getMolarMass() * 1000), buf, test)
-					.toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][4] = "[kJ/kg*K]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][0] = "Viscosity";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][i + 1] = nf
-					.format((getThermoSystem().getPhases()[i].getPhysicalProperties().getViscosity()), buf, test)
-					.toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][4] = "[kg/m*sec]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][0] = "Conductivity";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][i + 1] = nf
-					.format(getThermoSystem().getPhases()[i].getPhysicalProperties().getConductivity(), buf, test)
-					.toString();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][4] = "[W/m*K]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][0] = "Pressure";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][i + 1] = Double
-					.toString(getThermoSystem().getPhases()[i].getPressure());
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][4] = "[bar]";
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][0] = "Temperature";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][i + 1] = Double
-					.toString(getThermoSystem().getPhases()[i].getTemperature());
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][4] = "[K]";
-			Double.toString(getThermoSystem().getPhases()[i].getTemperature());
-
-			buf = new StringBuffer();
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][0] = "Stream";
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][i + 1] = name;
-			table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][4] = "-";
-		}
-
-		JTable Jtab = new JTable(table, names);
-		JScrollPane scrollpane = new JScrollPane(Jtab);
-		dialogContentPane.add(scrollpane);
-		dialog.pack();
-		dialog.setVisible(true);
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public String[][] getResultTable() {
-		return thermoSystem.getResultTable();
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public String getName() {
-		return name;
-	}
-
-	/**
-	 * <p>
-	 * getTotalWork.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getTotalWork() {
-		if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
-			double[] gergProps;
-			gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
-			double enth = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
-			return enth - inletEnthalpy;
-		} else
-			return getThermoSystem().getEnthalpy() - inletEnthalpy;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void runTransient() {
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public double getIsentropicEfficiency() {
-		return isentropicEfficiency;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void setIsentropicEfficiency(double isentropicEfficientcy) {
-		this.isentropicEfficiency = isentropicEfficientcy;
-	}
-
-	/**
-	 * <p>
-	 * usePolytropicCalc.
-	 * </p>
-	 *
-	 * @return the usePolytropicCalc
-	 */
-	public boolean usePolytropicCalc() {
-		return usePolytropicCalc;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>usePolytropicCalc</code>.
-	 * </p>
-	 *
-	 * @param usePolytropicCalc the usePolytropicCalc to set
-	 */
-	public void setUsePolytropicCalc(boolean usePolytropicCalc) {
-		this.usePolytropicCalc = usePolytropicCalc;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public double getPolytropicEfficiency() {
-		return polytropicEfficiency;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void setPolytropicEfficiency(double polytropicEfficiency) {
-		this.polytropicEfficiency = polytropicEfficiency;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public SystemInterface getThermoSystem() {
-		return thermoSystem;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>compressorChart</code>.
-	 * </p>
-	 *
-	 * @return a
-	 *         {@link neqsim.processSimulation.processEquipment.compressor.CompressorChartInterface}
-	 *         object
-	 */
-	public CompressorChartInterface getCompressorChart() {
-		return compressorChart;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>compressorChart</code>.
-	 * </p>
-	 *
-	 * @param compressorChart a
-	 *                        {@link neqsim.processSimulation.processEquipment.compressor.CompressorChart}
-	 *                        object
-	 */
-	public void setCompressorChart(CompressorChart compressorChart) {
-		this.compressorChart = compressorChart;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public AntiSurge getAntiSurge() {
-		return antiSurge;
-	}
-
-	/**
-	 * <p>
-	 * isSurge.
-	 * </p>
-	 *
-	 * @param flow a double
-	 * @param head a double
-	 * @return a boolean
-	 */
-	public boolean isSurge(double flow, double head) {
-		getAntiSurge().setSurge(getCompressorChart().getSurgeCurve().isSurge(flow, head));
-		return getAntiSurge().isSurge();
-	}
-
-	/**
-	 * <p>
-	 * isStoneWall.
-	 * </p>
-	 *
-	 * @param flow a double
-	 * @param head a double
-	 * @return a boolean
-	 */
-	public boolean isStoneWall(double flow, double head) {
-		return getCompressorChart().getStoneWallCurve().isStoneWall(flow, head);
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>antiSurge</code>.
-	 * </p>
-	 *
-	 * @param antiSurge a
-	 *                  {@link neqsim.processSimulation.processEquipment.compressor.AntiSurge}
-	 *                  object
-	 */
-	public void setAntiSurge(AntiSurge antiSurge) {
-		this.antiSurge = antiSurge;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>speed</code>.
-	 * </p>
-	 *
-	 * @return a int
-	 */
-	public int getSpeed() {
-		return speed;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>speed</code>.
-	 * </p>
-	 *
-	 * @param speed a int
-	 */
-	public void setSpeed(int speed) {
-		this.speed = speed;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicHead</code>.
-	 * </p>
-	 *
-	 * @param unit a {@link java.lang.String} object
-	 * @return a double
-	 */
-	public double getPolytropicHead(String unit) {
-		if (unit.equals("kJ/kg"))
-			return polytropicFluidHead;
-		else if (unit.equals("meter"))
-			return polytropicHeadMeter;
-		else
-			return polytropicHead;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicHead</code>.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getPolytropicHead() {
-		return polytropicHead;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicFluidHead</code>.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getPolytropicFluidHead() {
-		return polytropicFluidHead;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicExponent</code>.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getPolytropicExponent() {
-		return polytropicExponent;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicHeadMeter</code>.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getPolytropicHeadMeter() {
-		return polytropicHeadMeter;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>polytropicHeadMeter</code>.
-	 * </p>
-	 *
-	 * @param polytropicHeadMeter a double
-	 */
-	public void setPolytropicHeadMeter(double polytropicHeadMeter) {
-		this.polytropicHeadMeter = polytropicHeadMeter;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>outTemperature</code>.
-	 * </p>
-	 *
-	 * @return a double
-	 */
-	public double getOutTemperature() {
-		if (useOutTemperature)
-			return outTemperature;
-		else
-			return getThermoSystem().getTemperature();
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>outTemperature</code>.
-	 * </p>
-	 *
-	 * @param outTemperature a double
-	 */
-	public void setOutTemperature(double outTemperature) {
-		useOutTemperature = true;
-		this.outTemperature = outTemperature;
-	}
-
-	/**
-	 * <p>
-	 * useOutTemperature.
-	 * </p>
-	 *
-	 * @param useOutTemperature a boolean
-	 */
-	public void useOutTemperature(boolean useOutTemperature) {
-		this.useOutTemperature = useOutTemperature;
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>numberOfCompresorCalcSteps</code>.
-	 * </p>
-	 *
-	 * @return a int
-	 */
-	public int getNumberOfCompresorCalcSteps() {
-		return numberOfCompresorCalcSteps;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>numberOfCompresorCalcSteps</code>.
-	 * </p>
-	 *
-	 * @param numberOfCompresorCalcSteps a int
-	 */
-	public void setNumberOfCompresorCalcSteps(int numberOfCompresorCalcSteps) {
-		this.numberOfCompresorCalcSteps = numberOfCompresorCalcSteps;
-	}
-
-	/**
-	 * <p>
-	 * isUseRigorousPolytropicMethod.
-	 * </p>
-	 *
-	 * @return a boolean
-	 */
-	public boolean isUseRigorousPolytropicMethod() {
-		return useRigorousPolytropicMethod;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>useRigorousPolytropicMethod</code>.
-	 * </p>
-	 *
-	 * @param useRigorousPolytropicMethod a boolean
-	 */
-	public void setUseRigorousPolytropicMethod(boolean useRigorousPolytropicMethod) {
-		this.useRigorousPolytropicMethod = useRigorousPolytropicMethod;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public void setPressure(double pressure) {
-		setOutletPressure(pressure);
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>pressure</code>.
-	 * </p>
-	 *
-	 * @param pressure a double
-	 * @param unit     a {@link java.lang.String} object
-	 */
-	public void setPressure(double pressure, String unit) {
-		setOutletPressure(pressure);
-		pressureUnit = unit;
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public double getEntropyProduction(String unit) {
-		return outStream.getThermoSystem().getEntropy(unit) - inletStream.getThermoSystem().getEntropy(unit);
-	}
-
-	/** {@inheritDoc} */
-	@Override
-	public double getExergyChange(String unit, double sourrondingTemperature) {
-		return outStream.getThermoSystem().getExergy(sourrondingTemperature, unit)
-				- inletStream.getThermoSystem().getExergy(sourrondingTemperature, unit);
-	}
-
-	/**
-	 * <p>
-	 * Getter for the field <code>polytropicMethod</code>.
-	 * </p>
-	 *
-	 * @return a {@link java.lang.String} object
-	 */
-	public String getPolytropicMethod() {
-		return polytropicMethod;
-	}
-
-	/**
-	 * <p>
-	 * Setter for the field <code>polytropicMethod</code>.
-	 * </p>
-	 *
-	 * @param polytropicMethod a {@link java.lang.String} object
-	 */
-	public void setPolytropicMethod(String polytropicMethod) {
-		this.polytropicMethod = polytropicMethod;
-	}
-
-	public boolean isUseGERG2008() {
-		return useGERG2008;
-	}
-
-	public void setUseGERG2008(boolean useGERG2008) {
-		this.useGERG2008 = useGERG2008;
-	}
+    private static final long serialVersionUID = 1000;
+    static Logger logger = LogManager.getLogger(Compressor.class);
+    public SystemInterface thermoSystem;
+    public StreamInterface inletStream;
+    public StreamInterface outStream;
+    private double outTemperature = 298.15;
+    private boolean useOutTemperature = false;
+    public double dH = 0.0;
+    public double inletEnthalpy = 0;
+    public double pressure = 0.0;
+    private int speed = 3000;
+    public double isentropicEfficiency = 1.0, polytropicEfficiency = 1.0;
+    public boolean usePolytropicCalc = false;
+    public boolean powerSet = false;
+    private CompressorChartInterface compressorChart = new CompressorChart();
+    private AntiSurge antiSurge = new AntiSurge();
+    private double polytropicHead = 0;
+    private double polytropicFluidHead = 0, polytropicHeadMeter = 0.0;
+    private double polytropicExponent = 0;
+    private int numberOfCompressorCalcSteps = 40;
+    private boolean useRigorousPolytropicMethod = false;
+    private boolean useGERG2008 = false;
+    private String pressureUnit = "bara";
+    private String polytropicMethod = "detailed";
+
+    /**
+     * <p>
+     * Constructor for Compressor.
+     * </p>
+     */
+    public Compressor() {
+        mechanicalDesign = new CompressorMechanicalDesign(this);
+    }
+
+    /**
+     * <p>
+     * Constructor for Compressor.
+     * </p>
+     *
+     * @param inletStream a {@link neqsim.processSimulation.processEquipment.stream.StreamInterface}
+     *        object
+     */
+    public Compressor(StreamInterface inletStream) {
+        this();
+        setInletStream(inletStream);
+    }
+
+    /**
+     * <p>
+     * Constructor for Compressor.
+     * </p>
+     *
+     * @param name a {@link java.lang.String} object
+     * @param inletStream a {@link neqsim.processSimulation.processEquipment.stream.StreamInterface}
+     *        object
+     */
+    public Compressor(String name, StreamInterface inletStream) {
+        this();
+        this.name = name;
+        setInletStream(inletStream);
+    }
+
+    /**
+     * <p>
+     * Constructor for Compressor.
+     * </p>
+     *
+     * @param interpolateMapLookup a boolean
+     */
+    public Compressor(boolean interpolateMapLookup) {
+        this();
+        if (interpolateMapLookup) {
+            compressorChart = new CompressorChartAlternativeMapLookup();
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void setInletStream(StreamInterface inletStream) {
+        this.inletStream = inletStream;
+        try {
+            this.outStream = inletStream.clone();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * <p>
+     * solveAntiSurge.
+     * </p>
+     */
+    public void solveAntiSurge() {
+        if (getAntiSurge().isActive()) {
+            // ....
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void setOutletPressure(double pressure) {
+        this.pressure = pressure;
+    }
+
+    /**
+     * <p>
+     * setOutletPressure.
+     * </p>
+     *
+     * @param pressure a double
+     * @param unit a {@link java.lang.String} object
+     */
+    public void setOutletPressure(double pressure, String unit) {
+        this.pressure = pressure;
+        this.pressureUnit = unit;
+    }
+
+    /**
+     * <p>
+     * getOutletPressure.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getOutletPressure() {
+        return pressure;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public double getEnergy() {
+        return getTotalWork();
+    }
+
+    /**
+     * <p>
+     * getPower.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getPower() {
+        return getTotalWork();
+    }
+
+    /**
+     * <p>
+     * getPower.
+     * </p>
+     *
+     * @param unit a {@link java.lang.String} object
+     * @return a double
+     */
+    public double getPower(String unit) {
+        double conversionFactor = 1.0;
+        if (unit.equals("MW")) {
+            conversionFactor = 1.0 / 1.0e6;
+        } else if (unit.equals("kW")) {
+            conversionFactor = 1.0 / 1.0e3;
+        }
+        return conversionFactor * getPower();
+    }
+
+    /**
+     * <p>
+     * setPower.
+     * </p>
+     *
+     * @param p a double
+     */
+    public void setPower(double p) {
+        powerSet = true;
+        dH = p;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public StreamInterface getOutStream() {
+        return outStream;
+    }
+
+    /**
+     * <p>
+     * getInStream.
+     * </p>
+     *
+     * @return a {@link neqsim.processSimulation.processEquipment.stream.StreamInterface} object
+     */
+    public StreamInterface getInStream() {
+        return inletStream;
+    }
+
+    /**
+     * Calculates polytropic or isentropic efficiency
+     *
+     * @param outTemperature a double
+     * @return a double
+     */
+    public double solveEfficiency(double outTemperature) {
+        double funk = 0.0, funkOld = 0.0;
+        double newPoly;
+        double dfunkdPoly = 100.0, dPoly = 100.0, oldPoly = outTemperature;
+        useOutTemperature = false;
+        run();
+        useOutTemperature = true;
+        int iter = 0;
+        boolean useOld = usePolytropicCalc;
+        // usePolytropicCalc = true;
+        // System.out.println("use polytropic " + usePolytropicCalc);
+        do {
+            iter++;
+            funk = getThermoSystem().getTemperature() - outTemperature;
+            dfunkdPoly = (funk - funkOld) / dPoly;
+            newPoly = polytropicEfficiency - funk / dfunkdPoly;
+            if (iter <= 1) {
+                newPoly = polytropicEfficiency + 0.01;
+            }
+            oldPoly = polytropicEfficiency;
+            polytropicEfficiency = newPoly;
+            isentropicEfficiency = newPoly;
+            dPoly = polytropicEfficiency - oldPoly;
+            funkOld = funk;
+            useOutTemperature = false;
+            run();
+            useOutTemperature = true;
+            // System.out.println("temperature compressor " +
+            // getThermoSystem().getTemperature() + " funk " + funk + " polytropic " +
+            // polytropicEfficiency);
+        } while ((Math.abs((getThermoSystem().getTemperature() - outTemperature)) > 1e-5
+                || iter < 3) && (iter < 50));
+        usePolytropicCalc = useOld;
+        return newPoly;
+    }
+
+    /**
+     * <p>
+     * findOutPressure.
+     * </p>
+     *
+     * @param hinn a double
+     * @param hout a double
+     * @param polytropicEfficiency a double
+     * @return a double
+     */
+    public double findOutPressure(double hinn, double hout, double polytropicEfficiency) {
+        double entropy = getThermoSystem().getEntropy();
+        getThermoSystem().setPressure(getThermoSystem().getPressure() + 1.0, pressureUnit);
+
+        // System.out.println("entropy inn.." + entropy);
+        ThermodynamicOperations thermoOps = new ThermodynamicOperations(getThermoSystem());
+        thermoOps.PSflash(entropy);
+
+        double houtGuess = hinn + dH / polytropicEfficiency;
+        thermoOps.PHflash(houtGuess, 0);
+        System.out.println("TEMPERATURE .." + getThermoSystem().getTemperature());
+        return getThermoSystem().getPressure();
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void run() {
+        thermoSystem = inletStream.getThermoSystem().clone();
+        ThermodynamicOperations thermoOps = new ThermodynamicOperations(getThermoSystem());
+        thermoOps = new ThermodynamicOperations(getThermoSystem());
+        getThermoSystem().init(3);
+        getThermoSystem().initPhysicalProperties("density");
+        double presinn = getThermoSystem().getPressure();
+        double hinn = getThermoSystem().getEnthalpy();
+        double densInn = getThermoSystem().getDensity();
+        double entropy = getThermoSystem().getEntropy();
+
+        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+            double[] gergProps;
+            gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+            hinn = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+            entropy = gergProps[8] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+        }
+
+        inletEnthalpy = hinn;
+        boolean surgeCheck = false;
+        double orginalMolarFLow = thermoSystem.getTotalNumberOfMoles();
+        double fractionAntiSurge = 0.0;
+        double kappa = 0.0;
+        if (useOutTemperature) {
+            if (useRigorousPolytropicMethod) {
+                solveEfficiency(outTemperature);
+                polytropicHead = getPower() / getThermoSystem().getFlowRate("kg/sec") / 1000.0
+                        * getPolytropicEfficiency();
+                polytropicFluidHead = polytropicHead;
+                polytropicHeadMeter =
+                        polytropicFluidHead * 1000.0 / ThermodynamicConstantsInterface.gravity;
+                return;
+            } else {
+                double MW = thermoSystem.getMolarMass();
+                thermoSystem.setPressure(getOutletPressure(), pressureUnit);
+                thermoOps.PSflash(entropy);
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    thermoOps.PSflashGERG2008(entropy);
+                }
+                thermoSystem.initPhysicalProperties("density");
+                double densOutIsentropic = thermoSystem.getDensity("kg/m3");
+                double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    double[] gergProps;
+                    gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                    densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
+                    enthalpyOutIsentropic =
+                            gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                }
+                thermoSystem.setTemperature(outTemperature);
+                thermoOps.TPflash();
+                thermoSystem.init(2);
+                thermoSystem.initPhysicalProperties("density");
+                double outEnthalpy = thermoSystem.getEnthalpy();
+                double densOut = thermoSystem.getDensity("kg/m3");
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    double[] gergProps;
+                    gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                    outEnthalpy =
+                            gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                    densOut = getThermoSystem().getPhase(0).getDensity_GERG2008();
+                }
+                dH = outEnthalpy - inletEnthalpy;
+                // System.out.println("total power " +
+                // dH/getThermoSystem().getFlowRate("kg/sec"));
+
+                double n = Math.log(getOutletPressure() / presinn) / Math.log(densOut / densInn);
+                double CF =
+                        (enthalpyOutIsentropic - inletEnthalpy) / thermoSystem.getFlowRate("kg/sec")
+                                / (n / (n - 1.0) * (getOutletPressure() * 1e5 / densOutIsentropic
+                                        - presinn * 1e5 / densInn));
+
+                double F1 = thermoSystem.getTotalNumberOfMoles();
+                double polytropicPower = F1 * MW * (n / (n - 1.0)) * CF * presinn * 1e5 / densInn
+                        * (Math.pow((getOutletPressure() / presinn), (n - 1.0) / n) - 1.0);
+                // System.out.println("polytropic power " +
+                // polytropicPower/getThermoSystem().getFlowRate("kg/sec"));
+                polytropicEfficiency = polytropicPower / getThermoSystem().getFlowRate("kg/sec")
+                        / (dH / getThermoSystem().getFlowRate("kg/sec"));
+                isentropicEfficiency = (enthalpyOutIsentropic - inletEnthalpy) / dH;
+
+                // isentropicEfficiency = (getThermoSystem().getEnthalpy() - hinn) / dH;
+
+                double k = Math.log(getOutletPressure() / presinn)
+                        / Math.log(densOutIsentropic / densInn);
+                double term1 = Math.pow(getOutletPressure() / presinn, (n - 1.0) / n) - 1.0;
+                double term2 = n / (n - 1.0) * (k - 1.0) / k;
+                double term3 = Math.pow(getOutletPressure() / presinn, (k - 1.0) / k) - 1.0;
+                double polyPow = term1 * term2 / term3 * isentropicEfficiency;
+                polytropicEfficiency = polyPow;
+                polytropicPower = dH * polytropicEfficiency;
+                // System.out.println("polytropic eff " + polytropicEfficiency);
+                // System.out.println("isentropic eff " + isentropicEfficiency);
+                polytropicFluidHead =
+                        polytropicPower / getThermoSystem().getFlowRate("kg/sec") / 1000.0;
+                polytropicHeadMeter = polytropicFluidHead * 1000.0 / 9.81;
+                polytropicHead = polytropicFluidHead;
+                if (getCompressorChart().isUseCompressorChart()) {
+                    if (getCompressorChart().getHeadUnit().equals("meter")) {
+                        polytropicHead = polytropicHeadMeter;
+                    } else {
+                        polytropicHead = polytropicFluidHead;
+                    }
+                }
+                outStream.setThermoSystem(getThermoSystem());
+
+                return;
+            }
+        }
+        if (compressorChart.isUseCompressorChart()) {
+            do {
+                double actualFlowRate = thermoSystem.getFlowRate("m3/hr");
+                double z_inlet = thermoSystem.getZ();
+                double MW = thermoSystem.getMolarMass();
+
+                if (getCompressorChart().useRealKappa()) {
+                    kappa = thermoSystem.getGamma();
+                } else {
+                    kappa = thermoSystem.getGamma2();
+                }
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    double[] gergProps;
+                    gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                    actualFlowRate *= gergProps[1] / z_inlet;
+                    kappa = gergProps[14];
+                }
+
+                double polytropEff =
+                        getCompressorChart().getPolytropicEfficiency(actualFlowRate, getSpeed());
+                setPolytropicEfficiency(polytropEff / 100.0);
+                polytropicHead = getCompressorChart().getPolytropicHead(actualFlowRate, getSpeed());
+                double temperature_inlet = thermoSystem.getTemperature();
+                double n = 1.0 / (1.0 - (kappa - 1.0) / kappa * 1.0 / (polytropEff / 100.0));
+                polytropicExponent = n;
+                if (getCompressorChart().getHeadUnit().equals("meter")) {
+                    polytropicFluidHead = polytropicHead / 1000.0 * 9.81;
+                    polytropicHeadMeter = polytropicHead;
+                } else {
+                    polytropicFluidHead = polytropicHead;
+                    polytropicHeadMeter = polytropicHead * 1000.0 / 9.81;
+                }
+                double pressureRatio = Math.pow(
+                        (polytropicFluidHead * 1000.0
+                                + (n / (n - 1.0) * z_inlet * 8.314 * (temperature_inlet) / MW))
+                                / (n / (n - 1.0) * z_inlet * 8.314 * (temperature_inlet) / MW),
+                        n / (n - 1.0));
+                setOutletPressure(thermoSystem.getPressure() * pressureRatio);
+                if (getAntiSurge().isActive()) {
+                    logger.info("surge flow "
+                            + getCompressorChart().getSurgeCurve().getSurgeFlow(polytropicHead)
+                            + " m3/hr");
+                    surgeCheck = isSurge(polytropicHead, actualFlowRate);
+                }
+                if (getCompressorChart().getStoneWallCurve().isActive()) {
+                    // logger.info("stone wall? " + isStoneWall(polytropicHead,
+                    // thermoSystem.getFlowRate("m3/hr")));
+                }
+                if (surgeCheck && getAntiSurge().isActive()) {
+                    thermoSystem.setTotalNumberOfMoles(getAntiSurge().getSurgeControlFactor()
+                            * thermoSystem.getTotalNumberOfMoles());
+                    thermoSystem.init(3);
+                    fractionAntiSurge =
+                            thermoSystem.getTotalNumberOfMoles() / orginalMolarFLow - 1.0;
+                    getAntiSurge().setCurrentSurgeFraction(fractionAntiSurge);
+                }
+
+                powerSet = true;
+                dH = polytropicFluidHead * 1000.0 * thermoSystem.getMolarMass()
+                        / getPolytropicEfficiency() * thermoSystem.getTotalNumberOfMoles();
+            } while (surgeCheck && getAntiSurge().isActive());
+        }
+
+        if (usePolytropicCalc) {
+            if (powerSet) {
+                double hout = hinn * (1 - 0 + fractionAntiSurge) + dH;
+                thermoSystem.setPressure(pressure, pressureUnit);
+                thermoOps = new ThermodynamicOperations(getThermoSystem());
+                thermoOps.PHflash(hout, 0);
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    thermoOps.PHflashGERG2008(hout);
+                }
+            } else {
+                if (polytropicMethod.equals("detailed")) {
+                    int numbersteps = numberOfCompressorCalcSteps;
+                    double dp = (pressure - getThermoSystem().getPressure()) / (1.0 * numbersteps);
+                    for (int i = 0; i < numbersteps; i++) {
+                        entropy = getThermoSystem().getEntropy();
+                        hinn = getThermoSystem().getEnthalpy();
+                        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                            double[] gergProps;
+                            gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                            hinn = gergProps[7]
+                                    * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                            entropy = gergProps[8]
+                                    * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                        }
+                        getThermoSystem().setPressure(getThermoSystem().getPressure() + dp,
+                                pressureUnit);
+                        thermoOps = new ThermodynamicOperations(getThermoSystem());
+                        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                            thermoOps.PSflashGERG2008(entropy);
+                        } else {
+                            thermoOps.PSflash(entropy);
+                        }
+                        double newEnt = getThermoSystem().getEnthalpy();
+                        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                            double[] gergProps;
+                            gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                            newEnt = gergProps[7]
+                                    * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                        }
+                        double hout = hinn + (newEnt - hinn) / polytropicEfficiency;
+                        thermoOps.PHflash(hout, 0);
+                        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                            thermoOps.PHflashGERG2008(hout);
+                        }
+                    }
+                } else if (polytropicMethod.equals("schultz")) {
+                    double schultzX = thermoSystem.getTemperature() / thermoSystem.getVolume()
+                            * thermoSystem.getdVdTpn() - 1.0;
+                    double schultzY = -thermoSystem.getPressure() / thermoSystem.getVolume()
+                            * thermoSystem.getdVdPtn();
+                    thermoSystem.setPressure(getOutletPressure(), pressureUnit);
+                    thermoOps.PSflash(entropy);
+                    thermoSystem.initProperties();
+                    double densOutIsentropic = thermoSystem.getDensity("kg/m3");
+                    double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
+                    if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                        thermoOps.PSflashGERG2008(entropy);
+                        double[] gergProps;
+                        gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                        densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
+                        enthalpyOutIsentropic = gergProps[7]
+                                * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                    }
+                    double isenthalpicvolumeexponent = Math.log(getOutletPressure() / presinn)
+                            / Math.log(densOutIsentropic / densInn);
+                    double nV = (1.0 + schultzX) / (1.0 / isenthalpicvolumeexponent
+                            * (1.0 / polytropicEfficiency + schultzX)
+                            - schultzY * (1.0 / polytropicEfficiency - 1.0));
+                    double term = nV / (nV - 1.0);
+                    double term2 =
+                            1e5 * (getOutletPressure() / densOutIsentropic - presinn / densInn);
+                    double term3 = isenthalpicvolumeexponent / (isenthalpicvolumeexponent - 1.0);
+                    double CF = (enthalpyOutIsentropic - inletEnthalpy) / (term2 * term3);
+                    dH = term * CF * 1e5 * presinn / densInn
+                            * (Math.pow(getOutletPressure() / presinn, 1.0 / term) - 1.0)
+                            / polytropicEfficiency;
+                    double hout = hinn + dH;
+                    thermoOps = new ThermodynamicOperations(getThermoSystem());
+                    thermoOps.PHflash(hout, 0);
+                    if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                        thermoOps.PHflashGERG2008(hout);
+                    }
+                } else {
+                    thermoSystem.setPressure(getOutletPressure(), pressureUnit);
+                    thermoOps.PSflash(entropy);
+                    thermoSystem.initProperties();
+                    double densOutIsentropic = thermoSystem.getDensity("kg/m3");
+                    double enthalpyOutIsentropic = thermoSystem.getEnthalpy();
+                    if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                        thermoOps.PSflashGERG2008(entropy);
+                        double[] gergProps;
+                        gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                        densOutIsentropic = getThermoSystem().getPhase(0).getDensity_GERG2008();
+                        enthalpyOutIsentropic = gergProps[7]
+                                * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                    }
+                    double isenthalpicvolumeexponent = Math.log(getOutletPressure() / presinn)
+                            / Math.log(densOutIsentropic / densInn);
+                    double term = isenthalpicvolumeexponent / (isenthalpicvolumeexponent - 1.0)
+                            * (polytropicEfficiency);
+                    double term2 =
+                            1e5 * (getOutletPressure() / densOutIsentropic - presinn / densInn);
+                    double CF = (enthalpyOutIsentropic - inletEnthalpy) / (term * term2);
+                    dH = term * CF * 1e5 * presinn / densInn
+                            * (Math.pow(getOutletPressure() / presinn, 1.0 / term) - 1.0);
+                    double hout = hinn + dH;
+                    thermoOps = new ThermodynamicOperations(getThermoSystem());
+                    thermoOps.PHflash(hout, 0);
+                    if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                        thermoOps.PHflashGERG2008(hout);
+                    }
+                }
+            }
+        } else {
+            getThermoSystem().setPressure(pressure, pressureUnit);
+            // System.out.println("entropy inn.." + entropy);
+            thermoOps = new ThermodynamicOperations(getThermoSystem());
+            thermoOps.PSflash(entropy);
+            if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                thermoOps.PSflashGERG2008(entropy);
+            }
+            // double densOutIdeal = getThermoSystem().getDensity();
+            double newEnt = getThermoSystem().getEnthalpy();
+            if (!powerSet) {
+                dH = (getThermoSystem().getEnthalpy() - hinn) / isentropicEfficiency;
+                if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                    double[] gergProps;
+                    gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+                    newEnt = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+                    dH = (newEnt - hinn) / isentropicEfficiency;
+                }
+            }
+            double hout = hinn + dH;
+            isentropicEfficiency = (newEnt - hinn) / dH;
+            dH = hout - hinn;
+            thermoOps = new ThermodynamicOperations(getThermoSystem());
+            thermoOps.PHflash(hout, 0);
+            if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+                thermoOps.PHflashGERG2008(hout);
+            }
+        }
+        // thermoSystem.display();
+
+        if (getCompressorChart().isUseCompressorChart() && getAntiSurge().isActive()) {
+            thermoSystem.setTotalNumberOfMoles(orginalMolarFLow);
+            thermoSystem.init(3);
+        }
+        thermoSystem.initProperties();
+        outStream.setThermoSystem(getThermoSystem());
+
+        polytropicFluidHead = getPower() / getThermoSystem().getFlowRate("kg/sec") / 1000.0
+                * getPolytropicEfficiency();
+        polytropicHeadMeter = polytropicFluidHead * 1000.0 / 9.81;
+    }
+
+    /**
+     * <p>
+     * generateCompressorCurves.
+     * </p>
+     */
+    public void generateCompressorCurves() {
+        double flowRef = getThermoSystem().getFlowRate("m3/hr");
+        double factor = flowRef / 4000.0;
+        double[] chartConditions = new double[] {0.3, 1.0, 1.0, 1.0};
+        double[] speed = new double[] {12913, 12298, 11683, 11098, 10453, 9224, 8609, 8200};
+        double[][] flow = new double[][] {
+                {2789.1285, 3174.0375, 3689.2288, 4179.4503, 4570.2768, 4954.7728, 5246.0329,
+                        5661.0331},
+                {2571.1753, 2943.7254, 3440.2675, 3837.4448, 4253.0898, 4668.6643, 4997.1926,
+                        5387.4952},
+                {2415.3793, 2763.0706, 3141.7095, 3594.7436, 4047.6467, 4494.1889, 4853.7353,
+                        5138.7858},
+                {2247.2043, 2799.7342, 3178.3428, 3656.1551, 4102.778, 4394.1591, 4648.3224,
+                        4840.4998},
+                {2072.8397, 2463.9483, 2836.4078, 3202.5266, 3599.6333, 3978.0203, 4257.0022,
+                        4517.345},
+                {1835.9552, 2208.455, 2618.1322, 2940.8034, 3244.7852, 3530.1279, 3753.3738,
+                        3895.9746},
+                {1711.3386, 1965.8848, 2356.9431, 2685.9247, 3008.5154, 3337.2855, 3591.5092},
+                {1636.5807, 2002.8708, 2338.0319, 2642.1245, 2896.4894, 3113.6264, 3274.8764,
+                        3411.2977}};
+
+        for (int i = 0; i < flow.length; i++) {
+            for (int j = 0; j < flow[i].length; j++) {
+                flow[i][j] *= factor;
+            }
+        }
+
+        double[][] head = new double[][] {
+                {80.0375, 78.8934, 76.2142, 71.8678, 67.0062, 60.6061, 53.0499, 39.728},
+                {72.2122, 71.8369, 68.9009, 65.8341, 60.7167, 54.702, 47.2749, 35.7471},
+                {65.1576, 64.5253, 62.6118, 59.1619, 54.0455, 47.0059, 39.195, 31.6387},
+                {58.6154, 56.9627, 54.6647, 50.4462, 44.4322, 38.4144, 32.9084, 28.8109},
+                {52.3295, 51.0573, 49.5283, 46.3326, 42.3685, 37.2502, 31.4884, 25.598},
+                {40.6578, 39.6416, 37.6008, 34.6603, 30.9503, 27.1116, 23.2713, 20.4546},
+                {35.2705, 34.6359, 32.7228, 31.0645, 27.0985, 22.7482, 18.0113},
+                {32.192, 31.1756, 29.1329, 26.833, 23.8909, 21.3324, 18.7726, 16.3403},};
+
+        for (int i = 0; i < head.length; i++) {
+            for (int j = 0; j < head[i].length; j++) {
+                head[i][j] *= factor / 5.0;
+            }
+        }
+        double[][] polyEff = new double[][] {
+                {77.2452238409573, 79.4154186459363, 80.737960012489, 80.5229826589649,
+                        79.2210931638144, 75.4719133864634, 69.6034181197298, 58.7322388482707},
+                {77.0107837113504, 79.3069974136389, 80.8941189021135, 80.7190194665918,
+                        79.5313242980328, 75.5912622896367, 69.6846136362097, 60.0043057990909},
+                {77.0043065299874, 79.1690958847856, 80.8038169975675, 80.6543975614197,
+                        78.8532389102705, 73.6664774270613, 66.2735600426727, 57.671664571658},
+                {77.0716623789093, 80.4629750233093, 81.1390811169072, 79.6374242667478,
+                        75.380928428817, 69.5332969549779, 63.7997587622339, 58.8120614497758},
+                {76.9705872525642, 79.8335492585324, 80.9468133671171, 80.5806471927835,
+                        78.0462158225426, 73.0403707523258, 66.5572286338589, 59.8624822515064},
+                {77.5063036680357, 80.2056198362559, 81.0339108025933, 79.6085962687939,
+                        76.3814534404405, 70.8027503005902, 64.6437367160571, 60.5299349982342},
+                {77.8175271586685, 80.065165942218, 81.0631362122632, 79.8955051771299,
+                        76.1983240929369, 69.289982774309, 60.8567149372229},
+                {78.0924334304045, 80.9353551568667, 80.7904437766234, 78.8639325223295,
+                        75.2170936751143, 70.3105081673411, 65.5507568533569, 61.0391468300337}};
+
+        getCompressorChart().setCurves(chartConditions, speed, flow, head, polyEff);
+        getCompressorChart().setHeadUnit("kJ/kg");
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void displayResult() {
+        DecimalFormat nf = new DecimalFormat();
+        nf.setMaximumFractionDigits(5);
+        nf.applyPattern("#.#####E0");
+
+        JDialog dialog = new JDialog(new JFrame(), "Results from TPflash");
+        Container dialogContentPane = dialog.getContentPane();
+        dialogContentPane.setLayout(new FlowLayout());
+
+        getThermoSystem().initPhysicalProperties();
+        String[][] table = new String[50][5];
+        String[] names = {"", "Phase 1", "Phase 2", "Phase 3", "Unit"};
+        table[0][0] = "";
+        table[0][1] = "";
+        table[0][2] = "";
+        table[0][3] = "";
+        StringBuffer buf = new StringBuffer();
+        FieldPosition test = new FieldPosition(0);
+
+        for (int i = 0; i < getThermoSystem().getNumberOfPhases(); i++) {
+            for (int j = 0; j < getThermoSystem().getPhases()[0].getNumberOfComponents(); j++) {
+                table[j + 1][0] = getThermoSystem().getPhases()[0].getComponents()[j].getName();
+                buf = new StringBuffer();
+                table[j + 1][i + 1] =
+                        nf.format(getThermoSystem().getPhases()[i].getComponents()[j].getx(), buf,
+                                test).toString();
+                table[j + 1][4] = "[-]";
+            }
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][0] = "Density";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][i + 1] =
+                    nf.format(getThermoSystem().getPhases()[i].getPhysicalProperties().getDensity(),
+                            buf, test).toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 2][4] = "[kg/m^3]";
+
+            // Double.longValue(thermoSystem.getPhases()[i].getBeta());
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][0] =
+                    "PhaseFraction";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][i + 1] =
+                    nf.format(getThermoSystem().getPhases()[i].getBeta(), buf, test).toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 3][4] = "[-]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][0] = "MolarMass";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][i + 1] =
+                    nf.format(getThermoSystem().getPhases()[i].getMolarMass() * 1000, buf, test)
+                            .toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 4][4] = "[kg/kmol]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][0] = "Cp";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][i + 1] = nf
+                    .format((getThermoSystem().getPhases()[i].getCp()
+                            / getThermoSystem().getPhases()[i].getNumberOfMolesInPhase() * 1.0
+                            / getThermoSystem().getPhases()[i].getMolarMass() * 1000), buf, test)
+                    .toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 5][4] = "[kJ/kg*K]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][0] = "Viscosity";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][i + 1] = nf.format(
+                    (getThermoSystem().getPhases()[i].getPhysicalProperties().getViscosity()), buf,
+                    test).toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 7][4] = "[kg/m*sec]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][0] = "Conductivity";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][i + 1] = nf.format(
+                    getThermoSystem().getPhases()[i].getPhysicalProperties().getConductivity(), buf,
+                    test).toString();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 8][4] = "[W/m*K]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][0] = "Pressure";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][i + 1] =
+                    Double.toString(getThermoSystem().getPhases()[i].getPressure());
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 10][4] = "[bar]";
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][0] = "Temperature";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][i + 1] =
+                    Double.toString(getThermoSystem().getPhases()[i].getTemperature());
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 11][4] = "[K]";
+            Double.toString(getThermoSystem().getPhases()[i].getTemperature());
+
+            buf = new StringBuffer();
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][0] = "Stream";
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][i + 1] = name;
+            table[getThermoSystem().getPhases()[0].getNumberOfComponents() + 13][4] = "-";
+        }
+
+        JTable Jtab = new JTable(table, names);
+        JScrollPane scrollpane = new JScrollPane(Jtab);
+        dialogContentPane.add(scrollpane);
+        dialog.pack();
+        dialog.setVisible(true);
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public String[][] getResultTable() {
+        return thermoSystem.getResultTable();
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * <p>
+     * getTotalWork.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getTotalWork() {
+        if (useGERG2008 && thermoSystem.getNumberOfPhases() == 1) {
+            double[] gergProps;
+            gergProps = getThermoSystem().getPhase(0).getProperties_GERG2008();
+            double enth = gergProps[7] * getThermoSystem().getPhase(0).getNumberOfMolesInPhase();
+            return enth - inletEnthalpy;
+        } else
+            return getThermoSystem().getEnthalpy() - inletEnthalpy;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void runTransient() {}
+
+    /** {@inheritDoc} */
+    @Override
+    public double getIsentropicEfficiency() {
+        return isentropicEfficiency;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void setIsentropicEfficiency(double isentropicEfficientcy) {
+        this.isentropicEfficiency = isentropicEfficientcy;
+    }
+
+    /**
+     * <p>
+     * usePolytropicCalc.
+     * </p>
+     *
+     * @return the usePolytropicCalc
+     */
+    public boolean usePolytropicCalc() {
+        return usePolytropicCalc;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>usePolytropicCalc</code>.
+     * </p>
+     *
+     * @param usePolytropicCalc the usePolytropicCalc to set
+     */
+    public void setUsePolytropicCalc(boolean usePolytropicCalc) {
+        this.usePolytropicCalc = usePolytropicCalc;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public double getPolytropicEfficiency() {
+        return polytropicEfficiency;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void setPolytropicEfficiency(double polytropicEfficiency) {
+        this.polytropicEfficiency = polytropicEfficiency;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public SystemInterface getThermoSystem() {
+        return thermoSystem;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>compressorChart</code>.
+     * </p>
+     *
+     * @return a
+     *         {@link neqsim.processSimulation.processEquipment.compressor.CompressorChartInterface}
+     *         object
+     */
+    public CompressorChartInterface getCompressorChart() {
+        return compressorChart;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>compressorChart</code>.
+     * </p>
+     *
+     * @param compressorChart a
+     *        {@link neqsim.processSimulation.processEquipment.compressor.CompressorChart} object
+     */
+    public void setCompressorChart(CompressorChart compressorChart) {
+        this.compressorChart = compressorChart;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public AntiSurge getAntiSurge() {
+        return antiSurge;
+    }
+
+    /**
+     * <p>
+     * isSurge.
+     * </p>
+     *
+     * @param flow a double
+     * @param head a double
+     * @return a boolean
+     */
+    public boolean isSurge(double flow, double head) {
+        getAntiSurge().setSurge(getCompressorChart().getSurgeCurve().isSurge(flow, head));
+        return getAntiSurge().isSurge();
+    }
+
+    /**
+     * <p>
+     * isStoneWall.
+     * </p>
+     *
+     * @param flow a double
+     * @param head a double
+     * @return a boolean
+     */
+    public boolean isStoneWall(double flow, double head) {
+        return getCompressorChart().getStoneWallCurve().isStoneWall(flow, head);
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>antiSurge</code>.
+     * </p>
+     *
+     * @param antiSurge a {@link neqsim.processSimulation.processEquipment.compressor.AntiSurge}
+     *        object
+     */
+    public void setAntiSurge(AntiSurge antiSurge) {
+        this.antiSurge = antiSurge;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>speed</code>.
+     * </p>
+     *
+     * @return a int
+     */
+    public int getSpeed() {
+        return speed;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>speed</code>.
+     * </p>
+     *
+     * @param speed a int
+     */
+    public void setSpeed(int speed) {
+        this.speed = speed;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicHead</code>.
+     * </p>
+     *
+     * @param unit a {@link java.lang.String} object
+     * @return a double
+     */
+    public double getPolytropicHead(String unit) {
+        if (unit.equals("kJ/kg"))
+            return polytropicFluidHead;
+        else if (unit.equals("meter"))
+            return polytropicHeadMeter;
+        else
+            return polytropicHead;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicHead</code>.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getPolytropicHead() {
+        return polytropicHead;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicFluidHead</code>.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getPolytropicFluidHead() {
+        return polytropicFluidHead;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicExponent</code>.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getPolytropicExponent() {
+        return polytropicExponent;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicHeadMeter</code>.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getPolytropicHeadMeter() {
+        return polytropicHeadMeter;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>polytropicHeadMeter</code>.
+     * </p>
+     *
+     * @param polytropicHeadMeter a double
+     */
+    public void setPolytropicHeadMeter(double polytropicHeadMeter) {
+        this.polytropicHeadMeter = polytropicHeadMeter;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>outTemperature</code>.
+     * </p>
+     *
+     * @return a double
+     */
+    public double getOutTemperature() {
+        if (useOutTemperature)
+            return outTemperature;
+        else
+            return getThermoSystem().getTemperature();
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>outTemperature</code>.
+     * </p>
+     *
+     * @param outTemperature a double
+     */
+    public void setOutTemperature(double outTemperature) {
+        useOutTemperature = true;
+        this.outTemperature = outTemperature;
+    }
+
+    /**
+     * <p>
+     * useOutTemperature.
+     * </p>
+     *
+     * @param useOutTemperature a boolean
+     */
+    public void useOutTemperature(boolean useOutTemperature) {
+        this.useOutTemperature = useOutTemperature;
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>numberOfCompressorCalcSteps</code>.
+     * </p>
+     *
+     * @return a int
+     */
+    public int getNumberOfCompressorCalcSteps() {
+        return numberOfCompressorCalcSteps;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>numberOfCompressorCalcSteps</code>.
+     * </p>
+     *
+     * @param numberOfCompressorCalcSteps a int
+     */
+    public void setNumberOfCompressorCalcSteps(int numberOfCompressorCalcSteps) {
+        this.numberOfCompressorCalcSteps = numberOfCompressorCalcSteps;
+    }
+
+    /**
+     * <p>
+     * isUseRigorousPolytropicMethod.
+     * </p>
+     *
+     * @return a boolean
+     */
+    public boolean isUseRigorousPolytropicMethod() {
+        return useRigorousPolytropicMethod;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>useRigorousPolytropicMethod</code>.
+     * </p>
+     *
+     * @param useRigorousPolytropicMethod a boolean
+     */
+    public void setUseRigorousPolytropicMethod(boolean useRigorousPolytropicMethod) {
+        this.useRigorousPolytropicMethod = useRigorousPolytropicMethod;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public void setPressure(double pressure) {
+        setOutletPressure(pressure);
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>pressure</code>.
+     * </p>
+     *
+     * @param pressure a double
+     * @param unit a {@link java.lang.String} object
+     */
+    public void setPressure(double pressure, String unit) {
+        setOutletPressure(pressure);
+        pressureUnit = unit;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public double getEntropyProduction(String unit) {
+        return outStream.getThermoSystem().getEntropy(unit)
+                - inletStream.getThermoSystem().getEntropy(unit);
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public double getExergyChange(String unit, double sourrondingTemperature) {
+        return outStream.getThermoSystem().getExergy(sourrondingTemperature, unit)
+                - inletStream.getThermoSystem().getExergy(sourrondingTemperature, unit);
+    }
+
+    /**
+     * <p>
+     * Getter for the field <code>polytropicMethod</code>.
+     * </p>
+     *
+     * @return a {@link java.lang.String} object
+     */
+    public String getPolytropicMethod() {
+        return polytropicMethod;
+    }
+
+    /**
+     * <p>
+     * Setter for the field <code>polytropicMethod</code>.
+     * </p>
+     *
+     * @param polytropicMethod a {@link java.lang.String} object
+     */
+    public void setPolytropicMethod(String polytropicMethod) {
+        this.polytropicMethod = polytropicMethod;
+    }
+
+    public boolean isUseGERG2008() {
+        return useGERG2008;
+    }
+
+    public void setUseGERG2008(boolean useGERG2008) {
+        this.useGERG2008 = useGERG2008;
+    }
 }
diff --git a/src/test/java/neqsim/processSimulation/util/example/process1.java b/src/test/java/neqsim/processSimulation/util/example/process1.java
index 64c28ee31..2ee64b4b9 100644
--- a/src/test/java/neqsim/processSimulation/util/example/process1.java
+++ b/src/test/java/neqsim/processSimulation/util/example/process1.java
@@ -4,7 +4,9 @@
 import neqsim.thermodynamicOperations.ThermodynamicOperations;
 
 /**
- * <p>process1 class.</p>
+ * <p>
+ * process1 class.
+ * </p>
  *
  * @author asmund
  * @version $Id: $Id
@@ -52,7 +54,7 @@ public static void main(String args[]) {
         compr.setOutletPressure(80.0);
         compr.setOutTemperature(345.0);
         compr.setUsePolytropicCalc(true);
-        // compr.setNumberOfCompresorCalcSteps(10);
+        // compr.setNumberOfCompressorCalcSteps(10);
 
         neqsim.processSimulation.processSystem.ProcessSystem operations =
                 new neqsim.processSimulation.processSystem.ProcessSystem();