Petro-SIM 7.2 Changes to Tools

New Emissions Utility


  • This is brand new Utility, and has the ability to calculate CO, NOx, PM and VOC emissions from burning fuel gas or liquid fuels using emission factors.



New Emissions Utility

CO2 freeze out envelope in the Lab Analysis utility


  • Using Multiflash to determine the CO2 freeze out envelope in a phase diagram



New phase envelope

Improvements to LP Utility


  • Regression Set-up.The LP Utility now has the new Regression tab. The Setup page allows you to manage regressions done by the LP Utility for any variables selected in the Deltas or Coefficients matrices if they have not been generated via stepped variables. It will then display the regressed equations and allows you to plot any regressed variables against observed values and examine statistical information on the regressions.
  • LP Utility Plots. The User to have the ability to save the set of user-created plots with the purpose to import the entire set into another simulation case.
  • LP QC Report. This report contains plots for comparison, parity plots and report grid.
  • Observables page export data to Excel.
  • Parity comparison of the LPU vs. Petro-SIM results.



New QC Report page

Improvements to Base Delta Object


  • Support BIAS column in the Base Delta Table.
  • A modified way the Base Delta Solver solves with multiple base columns. Enable the interpolated calculation method for the single base designation as highlighted below in red or give the user the option to have it calculate that way (check box or something if you want it to use it that way).


New fire models in the Depressuring Utility


  • The equation for heat absorption for vessels containing liquids (Equation (6) in API 521 7th Edition) is now available.Petro-SIM can now calculate wetted areas.
  • The generic equation to estimate the ehat absorbed for surfaces exposed to fire (Equation (A.1) in API 521 7th Edition) is also available.
  • The user can also specify the geometry of a vessel with non-flat heads.



API 521 Equation (6) model



API 521 Equation (A.1) model



Non-flat headed vessel set up