Class TEMAStandard

java.lang.Object

neqsim.process.mechanicaldesign.heatexchanger.TEMAStandard

public class TEMAStandard
extends Object

TEMA (Tubular Exchanger Manufacturers Association) standard designations for shell and tube heat exchangers.

TEMA uses a three-letter designation to specify heat exchanger configuration:

• First letter: Front head type (stationary)
• Second letter: Shell type
• Third letter: Rear head type

Example: "AES" means A-type front head, E-type shell, S-type rear head.

Common TEMA Designations

Common TEMA heat exchanger designations and applications

Type	Application
AES	Most common type, removable tube bundle
BEM	Fixed tubesheet, clean fluids
AEU	U-tube, thermal expansion handling
AKT	Kettle reboiler

References

• TEMA Standards, 10th Edition (2019)
• ASME Section VIII, Division 1

Version:

1.0

Author:

NeqSim Development Team

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	TEMAStandard.BaffleType	Baffle types per TEMA.
static enum	TEMAStandard.FrontHeadType	TEMA front head types (stationary head).
static enum	TEMAStandard.RearHeadType	TEMA rear head types.
static enum	TEMAStandard.ShellType	TEMA shell types.
static enum	TEMAStandard.StandardTubeSize	Standard tube sizes per TEMA.
static enum	TEMAStandard.TEMAClass	TEMA class for construction standards.
static class	TEMAStandard.TEMAConfiguration	Represents a complete TEMA configuration.
static enum	TEMAStandard.TubePitchPattern	Standard tube pitches per TEMA.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Map<String, TEMAStandard.TEMAConfiguration>	COMMON_CONFIGURATIONS

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TEMAStandard()

Method Summary

Modifier and Type	Method	Description
static double	calculateMinTubePitch(double tubeOD, TEMAStandard.TubePitchPattern pattern)	Calculates minimum tube pitch per TEMA standards.
static TEMAStandard.TEMAConfiguration	createConfiguration(char frontHead, char shell, char rearHead)	Creates a custom TEMA configuration.
static int	estimateTubeCount(double shellID, double tubeOD, double tubePitch, TEMAStandard.TubePitchPattern pattern, int tubePasses)	Calculates estimated tube count for given shell diameter.
static Map<String, TEMAStandard.TEMAConfiguration>	getCommonConfigurations()	Gets all common TEMA configurations.
static TEMAStandard.TEMAConfiguration	getConfiguration(String designation)	Gets a common TEMA configuration by designation.
static double	getMaxBaffleSpacing(double shellID)	Gets maximum baffle spacing per TEMA.
static double	getMaxUnsupportedSpan(double tubeOD, String tubeMaterial)	Gets maximum allowable unsupported tube span per TEMA.
static double	getMinBaffleSpacing(double shellID, TEMAStandard.TEMAClass temaClass)	Calculates minimum baffle spacing per TEMA.
static String	recommendConfiguration(boolean needsCleanable, boolean hasLargeTemperatureDifference, boolean isHighPressure, boolean isHazardous)	Recommends TEMA configuration based on application.

Methods inherited from class Object

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

Field Details

COMMON_CONFIGURATIONS

private static final Map<String, TEMAStandard.TEMAConfiguration> COMMON_CONFIGURATIONS

Constructor Details

TEMAStandard

private TEMAStandard()

Method Details

getConfiguration

public static TEMAStandard.TEMAConfiguration getConfiguration(String designation)

Gets a common TEMA configuration by designation.

Parameters:

designation - TEMA designation (e.g., "AES")

Returns:

configuration or null if not found

getCommonConfigurations

public static Map<String, TEMAStandard.TEMAConfiguration> getCommonConfigurations()

Gets all common TEMA configurations.

Returns:

map of designations to configurations

createConfiguration

public static TEMAStandard.TEMAConfiguration createConfiguration(char frontHead,
 char shell,
 char rearHead)

Creates a custom TEMA configuration.

Parameters:

frontHead - front head type letter (A, B, C, N, D)

shell - shell type letter (E, F, G, H, J, K, X)

rearHead - rear head type letter (L, M, N, P, S, T, U, W)

Returns:

new configuration

Throws:

IllegalArgumentException - if any letter is invalid

recommendConfiguration

public static String recommendConfiguration(boolean needsCleanable,
 boolean hasLargeTemperatureDifference,
 boolean isHighPressure,
 boolean isHazardous)

Recommends TEMA configuration based on application.

Parameters:

needsCleanable - true if shell side needs mechanical cleaning

hasLargeTemperatureDifference - true if large temperature differential

isHighPressure - true if high-pressure application

isHazardous - true if hazardous fluid involved

Returns:

recommended TEMA designation

calculateMinTubePitch

public static double calculateMinTubePitch(double tubeOD,
 TEMAStandard.TubePitchPattern pattern)

Calculates minimum tube pitch per TEMA standards.

Parameters:

tubeOD - tube outer diameter in mm

pattern - tube pitch pattern

Returns:

minimum tube pitch in mm

estimateTubeCount

public static int estimateTubeCount(double shellID,
 double tubeOD,
 double tubePitch,
 TEMAStandard.TubePitchPattern pattern,
 int tubePasses)

Calculates estimated tube count for given shell diameter.

Parameters:

shellID - shell inside diameter in mm

tubeOD - tube outer diameter in mm

tubePitch - tube pitch in mm

pattern - tube layout pattern

tubePasses - number of tube passes

Returns:

estimated tube count

getMaxUnsupportedSpan

public static double getMaxUnsupportedSpan(double tubeOD,
 String tubeMaterial)

Gets maximum allowable unsupported tube span per TEMA.

Parameters:

tubeOD - tube outer diameter in mm

tubeMaterial - tube material (CARBON_STEEL, STAINLESS, etc.)

Returns:

maximum unsupported span in mm

getMinBaffleSpacing

public static double getMinBaffleSpacing(double shellID,
 TEMAStandard.TEMAClass temaClass)

Calculates minimum baffle spacing per TEMA.

Parameters:

shellID - shell inside diameter in mm

temaClass - TEMA class

Returns:

minimum baffle spacing in mm

getMaxBaffleSpacing

public static double getMaxBaffleSpacing(double shellID)

Gets maximum baffle spacing per TEMA.

Parameters:

shellID - shell inside diameter in mm

Returns:

maximum baffle spacing in mm