OG90
Course Contents
Module 1: Introduction to Aspen HYSYS and Process Simulation Fundamentals
Key Topics
- Overview of Aspen HYSYS interface and simulation environment
- Role of Aspen HYSYS in process design, operation and optimisation
- Steady-state vs dynamic simulation in HYSYS
- Process data requirements and simulation basis definition
- Material and energy balance setup in HYSYS
- Stream properties, property packages and fluid characterisation
- Common modelling errors and simulation best practices
Module 2: Thermodynamics, Property Packages and Flowsheet Development in HYSYS
Key Topics
- Selecting thermodynamic models in Aspen HYSYS (Peng-Robinson, SRK, etc.)
- Phase equilibrium, flash calculations and property estimation
- Building process flowsheets in Aspen HYSYS
- Stream connections, specifications and degrees of freedom
- Recycle loops, tear streams and convergence techniques
- Sensitivity analysis and case comparison tools in HYSYS
- Documentation of assumptions and model configuration
Module 3: Steady-State Equipment Modelling in Aspen HYSYS
Key Topics
- Modelling separators, three-phase drums and flash vessels
- Pumps, compressors, expanders and pressure control equipment
- Heat exchangers, heaters, coolers and utility systems
- Distillation columns: setup, convergence and performance analysis
- Reactor models and conversion/kinetic approaches in HYSYS
- Pressure drop, hydraulics and equipment constraints
- Identifying bottlenecks and performance limitations using simulation
Module 4: Dynamic Simulation and Control in Aspen HYSYS Dynamics
Key Topics
- Introduction to Aspen HYSYS Dynamics environment
- Converting steady-state models to dynamic simulation cases
- Defining holdups, volumes and pressure-flow relationships
- Control valves, controllers and instrumentation setup
- Start-up, shutdown and transition scenario simulation
- Process disturbances and transient response analysis
- Stability, operability and safety considerations in dynamic models
Module 5: Model Validation, Optimisation and Industrial Applications
Key Topics
- Calibrating Aspen HYSYS models using plant data
- Comparing simulation results with actual operating performance
- Sensitivity analysis and uncertainty evaluation
- Process optimisation and energy efficiency studies
- What-if scenarios for troubleshooting and decision support
- Introduction to digital twin concepts using Aspen HYSYS
- Final integrated case study: build, validate and analyse a full process model (steady-state + dynamic)