The CSIRO-Monash Thermochemistry System Version 1, developed at Monash University Department of Chemical Engineering, was released in 1992. Version 2, also developed at Monash University, was colour enhanced and initially developed in 1995 but never generally released.

MONASH THERMOCHEMISTRY System Version 1 and 2
Additional Features over CSIRO Thermochemistry System Version 5.1

ALL PROGRAMS

1. On-line help
   No help is given if not required. Information is given in return for a "?" input or given automatically if requested. On-line menus are available to operate the programs interactively. A description is provided of each input. The required format of the input is described. Examples of input are provided from the HELP files. The information required to define a system is listed. Command names can either be entered in full or truncated.
2. Output mode control
   Output may be regulated by time or by page for fast computers or may be left unregulated.
3. Recall buffer
   Output lost off the screen during interactive operation may be recalled from a buffer.
4. Optional case sensitivity in formula input
   Mixed upper and lower case input may be optionally used to provide more natural input of chemical formulae.
5. New element symbols check
   Element symbols are checked after each formula is input so that a complete system does not have to be re-entered after a simple error. Non-standard element symbols are available to be defined as macros.
6. Pseudo-element macros
   Frequently used chemical formula groupings, such as ligands, may be replaced by macros.
7. Thermodynamic components basis
   The component basis is now automatically calculated by the programs. This eliminates a major cause of program failure in equilibrium and phase diagram calculation and reaction balancing.
8. System storage
   The chemical system currently in memory may be saved in input file form for future use, thus allowing an interactive session to be suspended then restarted.
9. In program calculator
   A mathematical calculator is now accessible by the programs. The user is given access to selected program variables through the calculator. The calculator also allows the input of mathematical expressions rather the constant values in many program options, thus allowing almost infinite program flexibility.
10. Units modification
    Alternate default units may be stored so that the programs automatically use preferred units. Additional energy and temperature units have been added.
11. Editor modification
    Substitute command added to line editor.
12. Additional documentation for new users
    A task related index and other new documentation is provided.
13. Hardware Flexibility
    The programs will operate in DOS on computers with extended memory.
14. Comments
    In-line comments can be placed after the " ; " symbol
15. Data types
    Five new data set types are available:
    
    USGS (type CPA)
    Yaws/JANAF (type CPB)
    Berman/Brown (type CPC)
    Criss-Cobble/Helgeson (type CCH)
    DIPPR (type DIP)
    This allows direct data entry or creation of data banks by the user from many published compilations.
16. Appending Data
    The data currently in memory may be appended to data files from all programs.
17. Plot Display
    Graphical output may now be directly displayed without additional software.
18. Plot data storage / Spreadsheet interface
    Plot points may be stored in an ASCII file for use by spreadsheet or other programs
19. Improved output formats
    Output formats have been improved by eliminating leading and trailing zeros in floating format eliminating trailing decimal points centring or left justifying numbers where appropriate
20. Old-file backup
    Old files are saved as backups if an attempt is made to over-write them.
21. Key-stroke Efficiency
    Unnecessary keystrokes have been eliminated from program input.
22. Additional examples
    Extra examples of the use of the system have been added.

1. Mass (weight) distribution
   The mass distribution of species in the equilibrium system can be calculated.
2. Volume distribution
   The volume distribution between phases and species and the density of the equilibrium system can be calculated.
3. New activity coefficient models
   General Activity Coefficient Model (user defined expressions) Redlich-Kwong-Soave and Peng-Robinson Equations of State
4. Alternate system definition
   A system may be defined by specifying its chemical elements.
5. System alteration
   A System may be altered by adding or deleting phases and species.
6. Staged reactor
   The staged reactor option now allows different stage temperatures.
7. Non-equilibrium option
   Non-Equilibrium calculations are now possible.
8. K-value calculation
   The K-values of species between phases may be calculated.
9. Incompatible phases
   The user is warned of potentially incompatible phase combinations.
10. Non-independent constraints
    The user is warned if impossible constraints are placed on a system.

Program SYSTEM

1. Incompatible axes species
   The user is warned if incompatible axes species are chosen.
2. Overlay lines
   Overlay lines may be optionally truncated and the overlay line labelling is now optional
3. Point activities
   The activities of all species may be calculated for given ordinate and abscissa values.

Programs REACT and FILER

1. Reaction properties may be calculated on a mole or mass basic for any key species of element.
2. Automatic balancing of reactions has been improved.
3. Additional Search Key: The NOT key has been added to the SEARCH command

DATABANKS

A Gibbs energy databank of 3132 data sets for aqueous, gaseous, liquid and solid species at a temperature of 25 C has been created from NBS publications. The data may be searched by name as well as by chemical formula.

A number of additional databank heat capacity relation formats are available. These allow the user to directly incorporate much of the data available in the published literature.

Click here to return to top of page.

Copyright Austherm Pty Ltd 1997-2004 All rights reserved