nce.equipments

Class HeatExchanger

java.lang.Object

nce.equipments.Equipment

nce.equipments.HeatExchanger

Direct Known Subclasses:

HeatExchangerDoublePipe

public abstract class HeatExchanger
extends Equipment

Version:

201602012

Author:

Carlo Tegano

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HeatExchanger.Locations
static class	HeatExchanger.Unknowns

Constructor Summary

Constructors

Constructor and Description
HeatExchanger(int numSteps)

Method Summary

Methods

Modifier and Type	Method and Description
void	assignColdStreamToShellSide() Sets hot stream to tube side and cold stream to shell side
void	assignColdStreamToTubeSide() Sets hot stream to shell side and cold stream to tube side
void	assignHotStreamToShellSide() Sets hot stream to shell side and cold stream to tube side
void	assignHotStreamToTubeSide() Sets hot stream to tube side and cold stream to shell side
void	defineBundleGeometry(int noPasses, int noTubes, double length, double extTubeDiam, double tubeThick)
void	defineShellGeometry(int noShellsInSeries, int noPasses, double intDiam, double thick)
abstract double	evalHeatTransferArea() Evaluates heat transfer area on the base of the assigned geometry.
void	evalThermalBalance() Closes thermal balance of the heat exchanger.
DomainDecomposition	getColdDomain() Returns the domain decomposition of the shell or of the bundle, depending on hot fluid location
HeatExchangerSide	getColdSide()
double	getDuty()
java.lang.Double	getFoulingFactCold()
java.lang.Double	getFoulingFactHot()
DomainDecomposition	getHotDomain() Returns the domain decomposition of the shell or of the bundle, depending on cold fluid location
HeatExchangerSide	getHotSide()
void	printCalculationGrid() prints the calculation grid (domain)
abstract void	runRating() User level driver to start exchanger rating procedure
void	setColdFluid(Stream coldFluid)
void	setFoulingFactColdSide(java.lang.Double foulingFactCold)
void	setFoulingFactHotSide(java.lang.Double foulingFactHot)
void	setHotFluid(Stream hotFluid)
void	setTubeMaterial(Material m)
void	setUnkThBal(HeatExchanger.Unknowns unkThBal) Specify which variable is unknown in the thermal balance
java.lang.String	tellWhichSideItIs(HeatExchangerSide s) Finds out whether the argument is shell side or tube side

Methods inherited from class nce.equipments.Equipment

getId, getInputRanges, getLabel, setId, setLabel

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HeatExchanger

public HeatExchanger(int numSteps)

Method Detail

runRating

public abstract void runRating()

User level driver to start exchanger rating procedure

assignHotStreamToShellSide

public void assignHotStreamToShellSide()

Sets hot stream to shell side and cold stream to tube side

assignHotStreamToTubeSide

public void assignHotStreamToTubeSide()

Sets hot stream to tube side and cold stream to shell side

assignColdStreamToTubeSide

public void assignColdStreamToTubeSide()

Sets hot stream to shell side and cold stream to tube side

assignColdStreamToShellSide

public void assignColdStreamToShellSide()

Sets hot stream to tube side and cold stream to shell side

evalThermalBalance

public void evalThermalBalance()

Closes thermal balance of the heat exchanger. Evaluates duty and the unknown temperature M * (H2 - H1) + m * (h2 - h1) = 0

defineBundleGeometry

public void defineBundleGeometry(int noPasses,
                        int noTubes,
                        double length,
                        double extTubeDiam,
                        double tubeThick)

defineShellGeometry

public void defineShellGeometry(int noShellsInSeries,
                       int noPasses,
                       double intDiam,
                       double thick)

setTubeMaterial

public void setTubeMaterial(Material m)

evalHeatTransferArea

public abstract double evalHeatTransferArea()

Evaluates heat transfer area on the base of the assigned geometry. Also evaluates and assignes the area of a single step in the calculation grid

setUnkThBal

public void setUnkThBal(HeatExchanger.Unknowns unkThBal)

Specify which variable is unknown in the thermal balance

Parameters:

unkThBal -

getColdDomain

public DomainDecomposition getColdDomain()

Returns the domain decomposition of the shell or of the bundle, depending on hot fluid location

Returns:

DomainDecomposition

getHotDomain

public DomainDecomposition getHotDomain()

Returns the domain decomposition of the shell or of the bundle, depending on cold fluid location

Returns:

DomainDecomposition

getColdSide

public HeatExchangerSide getColdSide()

getHotSide

public HeatExchangerSide getHotSide()

tellWhichSideItIs

public java.lang.String tellWhichSideItIs(HeatExchangerSide s)

Finds out whether the argument is shell side or tube side

Parameters:

s - HeatExchangerSide

Returns:

string "Shell" or "Tube"

printCalculationGrid

public void printCalculationGrid()

prints the calculation grid (domain)

setHotFluid

public void setHotFluid(Stream hotFluid)

setColdFluid

public void setColdFluid(Stream coldFluid)

getFoulingFactHot

public java.lang.Double getFoulingFactHot()

setFoulingFactHotSide

public void setFoulingFactHotSide(java.lang.Double foulingFactHot)

getFoulingFactCold

public java.lang.Double getFoulingFactCold()

setFoulingFactColdSide

public void setFoulingFactColdSide(java.lang.Double foulingFactCold)

getDuty

public double getDuty()