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Look out for our fortnightly "Software Tip" which provides some useful tips that could potentially
save you time and produce unexpected results at your fingertips. Contest details below.

Tip 8: Quick Way to Check Various Balances in Petro-SIM™


Would you like to examine the balances (mass, volume, molar, and heat or even elemental) around one (or more) unit operation in the PFD from within Petro-SIM without needing to setup manual calculation spreadsheets?


Petro-SIM has a Flowsheet Report utility which allows you to quickly examine the balances (mass, volume, molar, heat, and elemental) on one (or more) unit operations. It is very easy to use and generates a report within Petro-SIM which is easy to visualise.


  1. Select objects in the PFD (by highlighting them using your mouse) to define the objects of interest.

  2. Right-click in the PFD, select Send To, and then choose Flowsheet Report.

  3. A Flowsheet Report utility will automatically be created. The boundary streams (feed and product streams) are determined by the selected objects and automatically added to the report.

  4. On the left hand menu, click on Balance and it will take you to the sheet where you can examine the overall balances. It will also report any imbalances, both absolute and relative imbalance.

  5. In the Balance Type box, you can choose the type of balance you would like to examine: Mass, Volume, Mole, or Heat.

  6. You can also examine the elemental balance (e.g. sulphur, hydrogen, etc.) by changing the Balance Type from Overall to Element.

We will be checking on how well you do by asking some simple questions in June. Three lucky winners will be picked and receive KBC exclusive prizes. Do keep a look out for our periodic email.

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