Below is a version history for Double Pipe Heat Exchanger Design (DHex) software:

DHex v6.0.0.0

  1. Added license tools to allow license removal for users with an active maintenance plan.
  2. Added Download button in the Check for Updates window to enable automated updates to the latest version for users with an active maintenance plan.
  3. 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
  4. Minor optimisation to code

DHex v5.0.0.0

  1. Internal code refining for Heat Exchanger Suite (HExS) publish automation
  2. Enhanced material thermal conductivitues database and added more material thermal conductvities.
  3. Added new setting to check for software updates on start
  4. Added physical properties PProps internal database containing 500 fluids

DHex v4.0.0.0

  1. Maintenance release addressing software licensing on new activation server

DHex v3.1.05

  1. Maintenance release
  2. fixed bug to address failing to calculate the thermal capacity ratio
  3. fixed bug to address failing to calculate the number of transfer unit
  4. fixed bug to address failing to calculate pressure drop in annulus side

DHex v3.1.0.4

  1. Maintenance release

DHex v3.1.0.3

  1. Added used hydraulic diameter for Nusselt number calculation. This feature can be accessed through the software setting screen
  2. Minor fixes to interface

DHex v3.1.0.2

  1. Software upgrade to Microsoft dot Net 4.8 Framework
  2. Fixed bug affecting retrieving film heat transfer coefficient user database entries
  3. Added water and steam properties
  4. Added check for software update

DHex v3.1.0.1

  1. Fixed bug affecting retrieving Nusselt user correlations when user is using comma for decimal point separator

DHex v3.1.0.0

  1. Maintenance release addressing software licensing on new activation server
  2. Added license information screen can be accessed from Help menu

DHex v3.0.0.3

  1. Maintenance release addressed software digital signature and end user license agreement

DHex v3.0.0.2

  1. Ability to designate Nusselt user correlations to inner pipe or outer pipe side
  2. Plot temperature profile for hot and cold sides, check temperature cross chart
  3. Multi case feature will now save cases in a case list and reload a case upon request during run time. 

DHex v3.0.0.1

  1. Maintenance release

DHex v3.0.0.0

  1. Software upgrade to Microsoft dot Net 4.6 Framework
  2. New user interface
  3. Added pumping power calculation
  4. Add your own Nusselt correlations to use in software calculations
  5. Added Unit converter includes 23 measurements units with 200-unit conversion
  6. Added Input Consistency check – to reduce input errors related to decimal point separator
  7. Some enhancement to results display
  8. Added Re-Save feature faster saving for edited files
  9. Added ability to enter heat transfer coefficient on both inner pipe side and outer pipe side
  10. Ability to enter Heat Duty
  11. Ability to calculate unknown exit temperatures on both sides or any two temperatures on both sides.
  12. Ability to add multiple cases to one results grid.
  13. Ability to add heat transfer coefficients in a user database table and load it during calculation.
  14. Added the following Nusselt number correlations:
  15. – Petukhov and Popov
  16. – Sleicher and Rouse
  17. – Gnielinski
  18. – Prandtl
  19. – Modified Dittus-Boelter
  20. Pressure drop friction factor chart under finned tube option has been removed and calculation of this friction factor is now done by the software
  21. Enhance summary of results presentation

DHex v2.1.0.0

  1. Added Ability to export results to Engineering Datasheet format (To Microsoft Excel)

DHex v2.0.0.0

  1. Enhanced User Interface
  2. Added support for WeBBusterZ Physical properties database
  3. Added fouling factors
  4. Fixed some small programming bugs

DHex v1.0.0

  1. First release 
DHex version history