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Process Simulation (PET555)

Process Simulation is to predict the output streams from an industrial processing facility, when input streams, energy exchange issues, design- and operational parameters are set. A simulation may represent the analysis stage of a wider, iterative design endeavour.

This course addresses the theory and implementation of the calculation methods involved, as well as the use of commercial process simulation software.

Course description for study year 2022-2023. Please note that changes may occur.

Course code




Credits (ECTS)


Semester tution start


Number of semesters


Exam semester


Language of instruction


  • Introduction to software
  • Thermodynamic relations, equations of state, mixing rules, flash calculation.
  • Numerical solution techniques and implementation strategies.
  • Phase envelope and phase checking.
  • Construction of flow sheets.
  • Semester assignment.
Learning outcome
Upon completion of this course, the student should be able to:
  1. Combine the mathematical expressions that relate the principles of thermodynamics with material models (e.g. equations of state), to produce the sets of equations that link properties of process fluids to their chemical composition.
  2. Apply numerical methods, construct algorithms, and implement computer codes required to solve these sets of equations.
  3. Prepare various technical information to go as input values to process simulations.
  4. Build a simple process simulation model using programming tools, such as Matlab or Python.
  5. Build a more advanced process simulation model using commercial software, such as Unisim.
  6. Address a specific problem description using available tools, and prepare a report discussing the result.
Required prerequisite knowledge

Semester assignment and written exam

Form of assessment Weight Duration Marks Aid
Semester assignment 1/3 Letter grades
Written exam 2/3 4 Hours Letter grades

The final grade is based on a weighted average score between the exam (2/3) end the semester assignment (1/3), provided that the exam result is an E or better.Resit exam will be arranged the following semester, according to normal UiS procedures. Resubmission of the semester assignment will be possible.

Course teacher(s)
Course coordinator: Runar Bøe
Head of Department: Øystein Arild
Method of work
Lectures, exercises, semester assignment, self-tuition
Overlapping courses
Course Reduction (SP)
Natural Gas Processing and Transportation (PET550_1) 10
Open for
Admission to Single Courses at the Faculty of Science and Technology Petroleum Engineering, Master of Science Degree Programme Exchange programme at Faculty of Science and Technology
Course assessment
Form and/or discussion.
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