Dynamic Process Simulation using Aspen HYSYS

Mastering Time-Dependent Simulation for Process and Operation Engineers.

What you’ll learn
✓ Learn the step-by-step workflow to convert a static HYSYS case into a dynamic environment.
✓ Understand the impact of vessel volumes and tray geometry on pressure-flow calculations.
✓ Master the pressure-flow solver and how to properly define boundary conditions to avoid model divergence.
✓ Configure and tune PID, On-Off, and Split-Range controllers.
✓ Implement Ratio Control and Cascade Control for precise process management.
✓ Gain an introductory understanding of Model Predictive Control (MPC) and how it handles multi-variable constraints.
✓ Model compressors using head and efficiency curves.
✓ Identify the surge line and implement automated Anti-Surge Control loops to prevent mechanical failure.
✓ Configure pump curves and minimum flow recycle lines to ensure stable operation during low-demand periods.
✓ Use the Column Internals tool to model tray-by-tray liquid holdup and pressure drops.
✓ Build rigorous overhead systems.
✓ Automate sequences like plant startups, shutdowns, or what-if disturbance scenarios.
✓ Build a Cause & Effect Matrix (CEM) to simulate emergency shutdowns and relief valve lifting during overpressure.
✓ Use the Aspen Simulation Workbook (ASW) to link HYSYS data to Excel for professional engineering reports and performance tracking.

Requirements
● Steady-state simulation experience, Aspen HYSYS

Description
In the modern oil, gas, and petrochemical industries, static snapshots are no longer sufficient for ensuring operational safety and efficiency. This intensive training program is designed to bridge the gap between steady-state design and real-world, time-dependent plant behavior. Participants will move beyond the limitations of static modeling to master the complexities of process dynamics, equipment sizing, and advanced regulatory control.

The curriculum provides a deep dive into the pressure-flow solver, teaching engineers how to configure rigorous models that account for equipment geometry and valve characteristics. You will learn to manage rotating equipment through performance curves and implement automated anti-surge control to protect critical assets. Additionally, the course covers detailed column dynamics using specialized internals tools for tray-by-tray hydraulic analysis and overhead system balancing.

A major focus is placed on automation and safety. You will learn to configure the event scheduler to perform tasks at pre-determined times, based on logical expressions, or when variables stabilize within set tolerances. This tool is essential for modeling pressure relief scenarios and emergency shutdowns. Furthermore, you will implement the cause and effect (C&E) matrix to replicate safety systems used in HAZOP analysis, determining how equipment should shut down based on specific safety thresholds. The C&E Matrix processes binary inputs (causes) to return specific outputs (effects), such as shutting down equipment based on healthy or tripped indicators. By the end of this course, you will be equipped to validate control strategies, simulate complex fire scenarios, and generate professional reports via the Aspen Simulation Workbook (ASW).

Who this course is for
■ Process engineers
■ Energy efficiency engineers
■ R&D engineers
■ Operation engineers
■ Oil refinery engineers
■ Chemical engineers
■ Petrochemical engineers
■ Gas processing engineers
■ Water treatment engineers

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