Honeywell's UniSim Design Suite is a process simulator capable of running both steady-state and dynamic plant models. Cranium and Synapse can generate UniSim input files. These input files contain both physical property data and parameters for physical property models. Once these files are generated, commands within UniSim can be used to load the contained physical property values into UniSim databases.

Cranium and Synapse create a UniSim formatted database containing eleven tables. Examples of the tables generated by Cranium and Synapse are shown here (note that only the first 250 records of each file are shown):

1. Open a Knowledge Base using either Cranium or Synapse.
2. Click on the File menu and select the Export Values command.
3. The application will activate the KB Export Dialog.
4. Select 'UniSim Format' from the Output File Format list and press the Export button. The Create a UniSim Database dialog is activated.

   1	Browse button for entering the name of the export file.
   2	List of chemicals selected to be exported.
   3	Commands for: Select All: select all listed chemicals Select None: select no listed chemicals Use Bkmrk: use a bookmark to select chemicals Find: Use the Find Chemical dialog to find a chemical by its name, synonym, chemical formula, etc. Detail: shows details, e.g., structure and properties, about the selected chemicals
   4	Export button

5. Press the Browse button to select the file into which the exported values will be written.
6. Select one or more chemicals from the central list. Use the Use Bkmrk (Use Bookmark), Detail and Find buttons to facilitate your selection.
7. Finally press the dialog's Export button. Cranium or Synapse will compile and estimate the required physical properties, regress these properties into models if needed and write these values and parameters into the named UniSim datbase file.

The following example database was generated by exporting seven chemicals (acetic acid, cyclohexanol, ethanol, ethyl acetate, n-hexane, toluene and vinyl chloride) and several estimation technique parameter sets. The export options were set to export all internal references but only export explicitly selected chemicals.

Example File	Description
UniSimExportDB.mdb	A Microsoft Access database file containing values for physical properties and estimation technique parameters.
UniSimExportDB.xlog	A the log file generated by Cranium and Synapse documenting the data values and estimation methods used to generate the values written to the newly created database file.

Topic	Description
Estimating Chemical Properties	a short video demonstrating how to estimate the physical properties of pure chemical using either Synapse or Cranium.
Estimating Mixture Properties	a short video demonstrating how to estimate the physical properties of mixtures using either Synapse or Cranium.
Getting Started using Cranium	provides a quick tour of Cranium's capabilities including physical property estimation and a discussion of structure editing.
Getting Started using Synapse	provides a quick tour of Synapse's capabilities including examples of chemical product design.