Class PumpChartAlternativeMapLookupExtrapolate

java.lang.Object

neqsim.process.equipment.compressor.CompressorChart

neqsim.process.equipment.compressor.CompressorChartAlternativeMapLookup

neqsim.process.equipment.compressor.CompressorChartAlternativeMapLookupExtrapolate

neqsim.process.equipment.pump.PumpChartAlternativeMapLookupExtrapolate

All Implemented Interfaces:

Serializable, Cloneable, CompressorChartInterface, PumpChartInterface

public class PumpChartAlternativeMapLookupExtrapolate
extends CompressorChartAlternativeMapLookupExtrapolate
implements PumpChartInterface

CompressorChartAlternativeMapLookupExtrapolate class.

Author:

ESOL

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static org.apache.logging.log4j.Logger	logger	Logger object for class.
private static final long	serialVersionUID	Serialization version UID.
(package private) boolean	usePumpChart

Constructor Summary

Constructors

Constructor	Description
PumpChartAlternativeMapLookupExtrapolate()

Method Summary

Modifier and Type	Method	Description
void	calculateViscosityCorrection(double viscosity, double flowBEP, double headBEP, double speed)	Calculate viscosity correction factors using the Hydraulic Institute (HI) method.
double	getBestEfficiencyFlowRate()	Get the flow rate at best efficiency point (BEP).
double	getCorrectedEfficiency(double flow, double speed, double actualViscosity)	Get efficiency with viscosity correction applied.
double	getCorrectedHead(double flow, double speed, double actualDensity)	Get density-corrected head for a given flow, speed, and actual fluid density.
double	getEfficiency(double flow, double speed)	Get method for efficiency from reference curves.
double	getEfficiencyCorrectionFactor()	Get the current efficiency correction factor (Cη).
double	getFlowCorrectionFactor()	Get the current flow correction factor (Cq).
double	getFullyCorrectedHead(double flow, double speed, double actualDensity, double actualViscosity)	Get head with both viscosity and density corrections applied.
double	getHead(double flow, double speed)	Get method for polytropic head from reference curves.
double	getHeadCorrectionFactor()	Get the current head correction factor (Ch).
double	getNPSHRequired(double flow, double speed)	Get NPSH required at specified flow and speed.
String	getOperatingStatus(double flow, double speed)	Check operating status at given flow and speed.
double	getReferenceDensity()	Get the reference density used for calculations.
double	getReferenceViscosity()	Get the reference viscosity.
double	getSpecificSpeed()	Calculate pump specific speed at BEP.
boolean	hasDensityCorrection()	Check if density correction is enabled.
boolean	hasNPSHCurve()	Check if NPSH curve data is available.
boolean	isUsePumpChart()	Checks if set to use compressor chart for compressor calculations (chart is set for compressor).
boolean	isUseViscosityCorrection()	Check if viscosity correction is enabled.
void	setNPSHCurve(double[][] npshRequired)	Set NPSH (Net Positive Suction Head) required curve.
void	setReferenceDensity(double referenceDensity)	Set the reference density for power and pressure ratio calculations.
void	setReferenceViscosity(double referenceViscosity)	Set the reference viscosity for viscosity correction.
void	setUsePumpChart(boolean usePumpChart)	Set compressor calculations to use compressor chart.
void	setUseViscosityCorrection(boolean useViscosityCorrection)	Enable or disable viscosity correction.

Methods inherited from class CompressorChartAlternativeMapLookupExtrapolate

getClosestRefSpeeds, getPolytropicEfficiency, getPolytropicHead

Methods inherited from class CompressorChartAlternativeMapLookup

addCurve, addCurve, addSurgeCurve, bisect_left, bisect_left, checkStoneWall, checkSurge1, checkSurge2, getChartConditions, getChartValues, getCurveAtRefSpeed, getFlow, getFlows, getGearRatio, getHeads, getHeadUnit, getMaxSpeedCurve, getMinSpeedCurve, getPolytropicEfficiencies, getSpeed, getSpeeds, getSpeedValue, getStoneWallCurve, getSurgeCurve, isUseCompressorChart, main, plot, polytropicEfficiency, prettyPrintChartValues, setCurves, setCurves, setGearRatio, setHeadUnit, setReferenceConditions, setStoneWallCurve, setSurgeCurve, setUseCompressorChart, setUseRealKappa, useRealKappa

Methods inherited from class CompressorChart

equals, fitReducedCurve, generateStoneWallCurve, generateSurgeCurve, getDischargeTemperatures, getGamma, getInletPressure, getInletTemperature, getPolytropicExponent, getPowers, getPressureRatios, getStoneWallFlowAtSpeed, getStoneWallHeadAtSpeed, getSurgeFlowAtSpeed, getSurgeHeadAtSpeed, hashCode, setGamma, setInletPressure, setInletTemperature, setMaxSpeedCurve, setMinSpeedCurve, setPolytropicExponent

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface CompressorChartInterface

equals, generateStoneWallCurve, generateSurgeCurve, getDischargeTemperatures, getGamma, getInletPressure, getInletStream, getInletTemperature, getOperatingMW, getPolytropicExponent, getPowers, getPressureRatios, getRatioToMaxSpeed, getRatioToMinSpeed, getStoneWallFlowAtSpeed, getStoneWallHeadAtSpeed, getSurgeFlowAtSpeed, getSurgeHeadAtSpeed, hashCode, isHigherThanMaxSpeed, isLowerThanMinSpeed, isSpeedWithinRange, setGamma, setInletPressure, setInletStream, setInletTemperature, setOperatingMW, setPolytropicExponent

Methods inherited from interface PumpChartInterface

addCurve, getHeadUnit, getSpeed, plot, setCurves, setHeadUnit, setReferenceConditions, setUseRealKappa, useRealKappa

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

logger

static org.apache.logging.log4j.Logger logger

Logger object for class.

usePumpChart

boolean usePumpChart

Constructor Details

PumpChartAlternativeMapLookupExtrapolate

public PumpChartAlternativeMapLookupExtrapolate()

Method Details

getHead

public double getHead(double flow,
 double speed)

Get method for polytropic head from reference curves.

Specified by:

getHead in interface PumpChartInterface

Parameters:

flow - [m3/h], speed in [rpm].

speed - a double

Returns:

polytropic head in unit [getHeadUnit]

isUsePumpChart

public boolean isUsePumpChart()

Checks if set to use compressor chart for compressor calculations (chart is set for compressor).

Specified by:

isUsePumpChart in interface PumpChartInterface

Returns:

a boolean

getEfficiency

public double getEfficiency(double flow,
 double speed)

Get method for efficiency from reference curves.

Specified by:

getEfficiency in interface PumpChartInterface

Parameters:

flow - [m3/h], speed in [rpm].

speed - a double

Returns:

efficiency [%].

setUsePumpChart

public void setUsePumpChart(boolean usePumpChart)

Set compressor calculations to use compressor chart.

Specified by:

setUsePumpChart in interface PumpChartInterface

Parameters:

usePumpChart - a boolean

getBestEfficiencyFlowRate

public double getBestEfficiencyFlowRate()

Get the flow rate at best efficiency point (BEP).

Specified by:

getBestEfficiencyFlowRate in interface PumpChartInterface

Returns:

flow rate at BEP in m³/hr

getSpecificSpeed

public double getSpecificSpeed()

Calculate pump specific speed at BEP.

Specified by:

getSpecificSpeed in interface PumpChartInterface

Returns:

specific speed (dimensionless)

getOperatingStatus

public String getOperatingStatus(double flow,
 double speed)

Check operating status at given flow and speed.

Specified by:

getOperatingStatus in interface PumpChartInterface

Parameters:

flow - flow rate in m³/hr

speed - pump speed in rpm

Returns:

operating status string

setNPSHCurve

public void setNPSHCurve(double[][] npshRequired)

Set NPSH (Net Positive Suction Head) required curve.

Specified by:

setNPSHCurve in interface PumpChartInterface

Parameters:

npshRequired - 2D array of NPSH values [speed][flow] in meters

getNPSHRequired

public double getNPSHRequired(double flow,
 double speed)

Get NPSH required at specified flow and speed.

Specified by:

getNPSHRequired in interface PumpChartInterface

Parameters:

flow - flow rate in m³/hr

speed - pump speed in rpm

Returns:

NPSH required in meters

hasNPSHCurve

public boolean hasNPSHCurve()

Check if NPSH curve data is available.

Specified by:

hasNPSHCurve in interface PumpChartInterface

Returns:

true if NPSH curve is available

getReferenceDensity

public double getReferenceDensity()

Get the reference density used for calculations.

Specified by:

getReferenceDensity in interface CompressorChartInterface

Specified by:

getReferenceDensity in interface PumpChartInterface

Overrides:

getReferenceDensity in class CompressorChart

Returns:

the reference density in kg/m3, or NaN if not set

setReferenceDensity

public void setReferenceDensity(double referenceDensity)

Set the reference density for power and pressure ratio calculations.

Specified by:

setReferenceDensity in interface CompressorChartInterface

Specified by:

setReferenceDensity in interface PumpChartInterface

Overrides:

setReferenceDensity in class CompressorChart

Parameters:

referenceDensity - the reference gas density in kg/m3

hasDensityCorrection

public boolean hasDensityCorrection()

Check if density correction is enabled.

Specified by:

hasDensityCorrection in interface PumpChartInterface

Returns:

true if reference density is set and correction will be applied

getCorrectedHead

public double getCorrectedHead(double flow,
 double speed,
 double actualDensity)

Get density-corrected head for a given flow, speed, and actual fluid density.

Specified by:

getCorrectedHead in interface PumpChartInterface

Parameters:

flow - flow rate in m³/hr

speed - pump speed in rpm

actualDensity - actual fluid density in kg/m³

Returns:

corrected head in the unit specified by getHeadUnit()

calculateViscosityCorrection

public void calculateViscosityCorrection(double viscosity,
 double flowBEP,
 double headBEP,
 double speed)

Calculate viscosity correction factors using the Hydraulic Institute (HI) method.

Specified by:

calculateViscosityCorrection in interface PumpChartInterface

Parameters:

viscosity - kinematic viscosity in cSt (centistokes)

flowBEP - flow at best efficiency point in m³/hr

headBEP - head at best efficiency point in meters

speed - pump speed in rpm

getFullyCorrectedHead

public double getFullyCorrectedHead(double flow,
 double speed,
 double actualDensity,
 double actualViscosity)

Get head with both viscosity and density corrections applied.

Specified by:

getFullyCorrectedHead in interface PumpChartInterface

Parameters:

flow - flow rate in m³/hr

speed - pump speed in rpm

actualDensity - actual fluid density in kg/m³

actualViscosity - actual kinematic viscosity in cSt

Returns:

fully corrected head

getCorrectedEfficiency

public double getCorrectedEfficiency(double flow,
 double speed,
 double actualViscosity)

Get efficiency with viscosity correction applied.

Specified by:

getCorrectedEfficiency in interface PumpChartInterface

Parameters:

flow - flow rate in m³/hr

speed - pump speed in rpm

actualViscosity - actual kinematic viscosity in cSt

Returns:

corrected efficiency in percent

setReferenceViscosity

public void setReferenceViscosity(double referenceViscosity)

Set the reference viscosity for viscosity correction.

Specified by:

setReferenceViscosity in interface PumpChartInterface

Parameters:

referenceViscosity - reference kinematic viscosity in cSt (typically 1.0 for water)

getReferenceViscosity

public double getReferenceViscosity()

Get the reference viscosity.

Specified by:

getReferenceViscosity in interface PumpChartInterface

Returns:

reference viscosity in cSt

setUseViscosityCorrection

public void setUseViscosityCorrection(boolean useViscosityCorrection)

Enable or disable viscosity correction.

Specified by:

setUseViscosityCorrection in interface PumpChartInterface

Parameters:

useViscosityCorrection - true to enable viscosity correction

isUseViscosityCorrection

public boolean isUseViscosityCorrection()

Check if viscosity correction is enabled.

Specified by:

isUseViscosityCorrection in interface PumpChartInterface

Returns:

true if viscosity correction is active

getFlowCorrectionFactor

public double getFlowCorrectionFactor()

Get the current flow correction factor (Cq).

Specified by:

getFlowCorrectionFactor in interface PumpChartInterface

Returns:

flow correction factor

getHeadCorrectionFactor

public double getHeadCorrectionFactor()

Get the current head correction factor (Ch).

Specified by:

getHeadCorrectionFactor in interface PumpChartInterface

Returns:

head correction factor

getEfficiencyCorrectionFactor

public double getEfficiencyCorrectionFactor()

Get the current efficiency correction factor (Cη).

Specified by:

getEfficiencyCorrectionFactor in interface PumpChartInterface

Returns:

efficiency correction factor