HExS – 6.0.0.0
- Added license tools to allow license removal for users with an active maintenance plan.
- Added Download button in the Check for Updates window to enable automated updates to the latest version for users with an active maintenance plan.
COMMON FOR ALL SUB MODULES ————————–
- Added/Update error log viewer for all sub modules. The log now issue messages that includes the following types:
ERROR: This type of messages is used for errors in input or results, the software will stop until errors are fixed by the user
WARNING: This type of message is used for warning when parameters are exceeded, the software will continue buy some results may be invalid
MESSAGE: This type of message is used for general software informative messages
INFO: This type of message is used to provide additional information and guidance during operation
ACHex Updated——————-
ACHEX – v3.0.0.0
- Error log view enhancement as described above
CnD Updated——————-
CnD – v1.9.0.0
- Added option to specify coolant-side heat transfer coefficient
Users can now override the calculated coolant-side heat transfer coefficient with a user-defined value.
This allows greater flexibility when modelling cases where standard correlations may not be applicable, including non-standard coolant conditions.
The specified value is used in the overall heat transfer coefficient calculation, while all other calculations remain unchanged.
DHex Updated——————-
DHex – v6.0.0.0
- Minor optimisation to code
- Error log view enhancement as described above
HCHex Updated——————
HCHex – v4.0.0.0
- Bug Fix during loading file => Prandtl number on shell and tube sides now recalculated on every load if checked for calculation
- Added calculations
|_ Overall heat transfer coefficient (Clean)
|_ Overdesign
|_ Safety Factor
|_ Area calculation renamed to “Required Area (based on fouled U)”
|_ Available Area (coil external surface) - Updated calculation summary
- Error log view enhancement as described aboveinclude the following types:
KRD Updated——————–
KRD V6.0.0.0
- Major interface update
- Error log view enhancement as described above
- Bug fix – detected during saved file loading
PHex Updated——————–
PHex – v11.0.0.0
- Error log view enhancement as described above
- Input consistancy check implemented to warn users when incorrect decimal point format is used
✨ New Feature: Advanced User-Defined Correlations (Nusselt & Fanning Friction Factor) - Added support for advanced user-defined Nusselt number correlations using custom mathematical expressions.
- Introduced a new Advanced Correlations interface, allowing users to define correlations based on:
|- Reynolds number (Re)
|- Prandtl number (Pr)
|- Fluid viscosity (μ)
|- Wall viscosity (μw) - Added support for custom Fanning friction factor correlations for channel pressure drop calculations.
|- These can be enabled via the Advanced Options tab.
|- Allows fine control of pressure drop predictions for specialised cases. - Implemented validity range checking for all advanced correlations:
|- Users can define Re and Pr limits.
|- Warnings are issued when calculations fall outside these limits. - Added automatic fallback to software correlations when:
|- Selected advanced correlation is outside its validity range
|- Optional behaviour controlled via checkbox - Improved correlation handling:
|- Separation between standard, user, and advanced correlations
|- Ensures backward compatibility with existing projects - Exit Pressure calculation on Hot and Cold sides
- Added support for user-defined heat transfer coefficients on both hot and cold sides.
This allows advanced users to override internal correlations and apply custom or experimentally
derived values where required. - Added an alternative thermal design method allowing a user-defined margin to be applied to the
clean overall heat transfer coefficient when fouling factors are not used.
The resulting design coefficient is then used in duty and area calculations.
S&THex Updated——————-
S&THex – v6.0.0.0
- Added alternative geometric bundle diameter estimation for non-standard tube pitch configurations.
The default standard tube-count correlation method remains unchanged. - Added license tools to allow license removal for users with an active maintenance plan.
- Added Download button in the Check for Updates window to enable automated updates to the latest version for users with an active maintenance plan.
- Fixed issue when reading settings file at the start of design mode.
🔧 Shell-Side Baffle Calculation Enhancements - Added support for Disc & Doughnut shell-side calculation modes:
|- Approximate
|- Geometry - Added support for Orifice shell-side calculation modes:
|- Approximate
|- Open Area Based - Added support for Segmental and Strip shell-side calculation modes:
|- Approximate (user-defined correction factor)
|- Strip Corrected (sealing-strip-based bypass correction) - Added Number of Sealing Strip Pairs input for Segmental and Strip baffle type.
- Added optional automatic estimation of sealing strip pairs based on effective tube rows crossed.
⚙️ Calculation Improvements - Implemented mode-dependent shell-side flow area calculations (Step 9) for advanced baffle types.
- Implemented mode-dependent shell-side pressure-drop calculations for:
|- Calculation Method 1 (Frank-based)
|- Calculation Method 2 (Kern-based) - Introduced geometry-based and open-area-based correction models for Disc & Doughnut and Orifice baffles.
- Introduced Bell–Delaware-inspired bypass correction for Segmental and Strip baffles using sealing strip ratio.
⚠️ Validation & Usability Enhancements - Added validation and warnings for:
|- Disc & Doughnut geometry inputs
|- Orifice open area inputs
|- Segmental and Strip sealing strip configuration - Added intelligent guidance messages for:
|- sealing strip estimation
|- geometry ranges
|- applicability of baffle cut - Added New Feature: Advanced User-Defined Nusselt Correlations
This feature provides advanced flexibility for expert users while maintaining
compatibility with existing correlation workflows.
|- Added a new Advanced Correlation Builder for defining custom Nusselt correlations
|- Supports full mathematical expressions using:
-> Re, Pr, μ, μw
-> Standard operators and functions (log, ln, sqrt, power, exp)
|- Includes:
-> Expression validation
-> Built-in testing tool
-> Optional applicability limits (Re, Pr)
-> Reference field for documentation
|- Advanced correlations are stored separately and accessed via a dedicated tab
|- Automatic calculation of Nusselt number upon selection
|- Warnings are logged when operating outside defined correlation limits
|- Improved stability and consistency of selection behavior across all correlation types
VTD Updated——————–
VTD – v4.0.0.0
Error log view enhancement as described aboveHeat Exchanger Suite (HExS) version history
HExS – 5.0.0.0
S&THex Updated——————-
S&THex – v5.1.0.1
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
S&THex – v5.1.0.0
- Bug fix to address saving and loading of multi-case scenario simulation
- bug fix in FSerializor.dll that affects saving and loading cultures like South Korea.
- Enhanced material thermal conductivities database and added more material thermal conductvities.
HCHex Updated——————-
HCHex – v3.0.0.2
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Added Water and Steam Properties Tool
HCHex – v3.0.0.1
- Update to saving and loading feature to address a bug in loading files
- Updated FSerializor.dll with new load and save functions to fix issues with saving files from different cultures locations i.e South Korea
- Expand the material thermal conductivity database
- Added physical properties PProps internal database containing 500 fluids
- Added new setting to check for software updates on start
CnD Updated———————
CnD – v1.8.0.1
- Enhanced material thermal conductivities database and added more material thermal conductivities.
CnD – v1.8.0.0
- Expand the material thermal conductivity database
- Added internal physical properties database containing 500 fluids
- Support Calculation for outlet pressures for shell and tube sides
- Enhanced the calculation tracker to include differences that appear (added/removed/changed),
the change difference is also calculated and displayed with change indicator. - Option to set the number of decimals added for results number formatting
- Option to allow the input of Heat Duty
- Add the ability to calculate the hot side vapor temperature and condensate outlet temperature <- Activated based on scenarios below:
if the vapor is superheated the inlet temperature of vapor can be calculated providing all input variables of calculation are entered
if the condensate is subcooled the outlet temperature of condensate can be calculated providing all input variables of calculation are entered - Added new setting to check for software updates on start
- Update error log viewer, the software will now issue messages in the error log that
include the following types:
ERROR: This type of messages is used for errors in input or results, the software will stop until errors are fixed by the user
WARNING: This type of message is used for warning when parameters are exceeded, the software will continue buy some results may be invalid
MESSAGE: This type of message is used for general software informative messages
INFO: This type of message is used to provide additional information and guidance during operation
UPDATE: This message is issues if a new version of the software is detected - Interface update – Hide and View error log and button panels
- Interface update – Project Inputs screen
- Interface update – Enhanced results display
- Enhance design summary report
- update to report viewer internal library
- bug fixes and code optimisation
ACHex Updated——————-
ACHEX – v2.2.0.0
- Enhanced material thermal conductivities database and added more material thermal conductivities.
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Added physical properties PProps internal database containing 500 fluids
- Added new setting to check for software updates on start
DHex Updated———————
DHex – v5.0.0.0
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Enhanced material thermal conductivities database and added more material thermal conductivities.
- Added new setting to check for software updates on start
- Added physical properties PProps internal database containing 500 fluids
KRD Updated———————-
KRD – v5.0.0.0
- Enhanced material thermal conductivities database and added more material thermal conductivities.
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Added new setting to check for software updates on start
- Added physical properties PProps internal database containing 500 fluids
PHex Updated———————-
PHex – v10.0.0.0
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Enhanced material thermal conductivities database and added more material thermal conductivities.
- Added water and Steam Properties
- Added new setting to check for software updates on start
- Added physical properties PProps internal database containing 500 fluids
VTD Updated———————–
VTD – v3.0.0.0
- Internal code refining for Heat Exchanger Suite (HExS) publish automation
- Enhanced material thermal conductivities database and added more material thermal conductvities.
- Added new setting to check for software updates on start
- Added physical properties PProps internal database containing 500 fluids
HExS – 4.0.0.0
- PProps physical properties tool update
|_ Added support to estimation thermal conductivity
|_ Added phase detection - Added check for updates on startup – can be turned off from the check for updates screen
Update to S&THex
- Enhance mechanical calculations
|_ Added Joint weld efficiency input for nozzles design steps mechanical section
|_ Added Error checks for nozzle thickness calculations - Added and approximation fall back method to calculated the bundle diameter
- Added Calculation of fluid outlet pressure for both Shell side and Tube side
- Added support to no baffles scenario calculations
- Added new graphics for drawing summary and improved design summary
- Added a setting to allow users the ability to select the exchanger for the drawing summary representation
- Added new setting to check for software updates on start
- Added PProps Physical Properties containing estimation for 500 fluidsUpdate to DHex
- Bug affecting the export to datasheet function has been identified and fixed
Update to PHex
- Bug affecting the export to datasheet function has been identified and fixed
HExS – 3.0.0.0
- Software licensing on new activation server
HExS – 2.0.0.5
Update to HCHex
- Added support for no core tube design
- Allow the calculation of core tube diameter when Shell inside diameter is defined
- Allow the calculation of Shell inside diameter when core tube diameter is defined
- Allow the calculation of both core tube diameter and Shell inside diameter
- Added new graphics
- Updated summary screens
HExS – 2.0.0.4
Update to DHex
- Maintenance release addressing
fixed bug to address failing to calculate the thermal capacity ratio
fixed bug to address failing to calculate the number of transfer unit
fixed bug to address failing to calculate pressure drop in annulus side
Update to S&THex
- Maintenance release
Added error check in physical properties import feature
HExS – 2.0.0.3
Update to ACHex
- Added condensing service – heat transfer coefficient is required when this service is in use.
only total condensation is currently supported - Added support for subcooling when condensing service is in use
- results interface now can be maximized to fill screen
- Added water and steam properties
HExS – v2.0.0.2
Update to HCHex
- Introduced latent heat input on shell side and tube side
- Added support for phase change.
- Calculate both inlet flow rates when heat duty and temperatures are specified
HExS – v2.0.0.1
Update to DHex
- Added use hydraulic diameter for nusselt number calculation
This feature can be accessed through the software setting screen - Minor fixes to interface
HExS – v2.0.0.0
Update to S&THex
- Update error log viewer, the software will now issue messages in the error log that
include the following types:
ERROR: This type of messages is used for errors in input or results, the software will stop until errors are fixed by the user
WARNING: This type of message is used for warning when parameters are exceeded, the software will continue buy some results may be invalid
MESSAGE: This type of message is used for general software informative messages
INFO: This type of message is used to provide additional information and guidance during operation
New Features: - Added kern tube counts
- Automate multiple cases by simply setting the changing parameters and allowing the software to iterate through these parameters and generate final results.
- Iterate through kern tube counts using the multiple cases feature
Automated mode for multiple case simulation: instead of manually changing values to add a case, this mode
will do the exact without user intervention. The manual mode is still avialable too.
You can now perform a simulation study by changing any of the parameters under the Study scenarios below:
Study parameters 1:
Tube outer diameter, Tube number of passes, Tube length, Number of tubes, Baffle spacing
Study parameters 2:
Uses kern tube counts to iterated between Shell diameters to obtain the number of tubes for a given number of passes.
User can set the study parameters and the software will automate the calculation steps and add the final result to summary screen
where the changes between each can can be detected.
This case study mode will automate the manual input for trial and error to optimise results.
HExS – v1.0.0.1
- correct a bug in warning messages for P Props physical properties database
HExS – v1.0.0.0
- First public release
HExS version history