Skip to content

Process Calculations in NeqSim

Even Solbraa edited this page Aug 20, 2025 · 8 revisions

Examples of process simulations using NeqSim are given in these examples and the process tests.

A stream is created using the stream object:

Stream stream_1 = new Stream("Stream1", testSystem);

A separartor is added using the following method

Separator separator = new Separator("Separator 1", stream_1);

More unit operations can be seen in the process equipment package.

To run a process simulation, all uit operations are added to a process operations object

neqsim.processSimulation.processSystem.ProcessSystem operations = new neqsim.processSimulation.processSystem.ProcessSystem(); operations.add(stream_1);

Finally to run the calculations we call:

operations.run();

to display the results we call:

operations.displayResult();

πŸš€ Getting Started

Wiki:

  1. Getting started with NeqSim and GitHub
  2. Getting started as a NeqSim developer
  3. The NeqSim parameter database

Docs:


πŸ§ͺ Thermodynamics

Wiki: 4. Setting up a fluid and flash calculations 5. Select EOS and mixing rule 6. Flash and phase envelope calculations 7. Thermodynamic and physical properties

Docs - Fundamentals:

Docs - Equations of State:

Docs - Flash & Operations:


πŸ›’οΈ Fluid Characterization

Wiki: 8. Oil Characterization 9. Aqueous fluids 10. Electrolytes

Docs:


πŸ”¬ Physical Properties

Docs - Overview:

Docs - Specific Models:


βš™οΈ Process Simulation

Wiki: 11. Process Calculations

Docs - Fundamentals:

Docs - Advanced Process Logic:


πŸ”§ Equipment Models

Compressors & Turbomachinery:

Pumps:

Separation:

Heat Transfer:

Valves & Flow Control:

Tanks & Storage:

Streams & Mixers:

Reactors:

Wells:

Energy & Special Equipment:


🌊 Pipeline & Multiphase Flow

Docs - Overview:

Docs - Single Phase Flow:

Docs - Two-Phase & Multiphase:

Docs - Pressure Drop & Friction:

Docs - Heat & Mass Transfer:

Docs - Transient Flow:


πŸ“Š PVT & Black Oil

Docs - PVT Simulation:

Docs - Black Oil:

Docs - Gas Quality:


🧊 Flow Assurance

Docs - Asphaltene:


⚑ Dynamic & Transient Simulation

Wiki: 18. Dynamic process simulations

Docs:


πŸ›‘οΈ Safety & Relief Systems

Docs - Overview:

Docs - Relief & Blowdown:

Docs - HIPPS:

Docs - Safety Systems:


πŸ“ Standards & Quality

Docs:


πŸ“ˆ Statistics & Parameter Fitting

Docs:


πŸ”Œ Integration & APIs

Wiki: 15. How to make a NeqSim API

Docs - Overview:

Docs - AI/ML:

Docs - MPC & Control:

Docs - Risk & Safety:


🏭 Optimization & Planning

Docs:


πŸ› οΈ Extending NeqSim

Wiki: 12. Adding a thermodynamic model 13. Adding a viscosity model 14. Adding a unit operation

Docs:


⚑ Performance & Deployment

Wiki: 16. Create native image using GraalVM 17. Profiling calculations


πŸ“š Examples & Tutorials

Jupyter Notebooks:

Java Examples:

External:


πŸ”— Quick Links

Clone this wiki locally