Honeywell UniSim Design Suite R520: Process Simulation Software

UniSim Design Suite R520 is a major release of Honeywell’s process simulation software for steady-state and dynamic modeling of oil & gas, refining, and chemical processes. This version introduces an AI-assisted property package recommender, enhanced distillation capabilities, new ammonia reactor modeling, EO emergency relief improvements, and expanded interoperability with Aspen HYSYS .

Key New Features in R520

Core Simulation & Unit Operations

Category New Capabilities
Distillation Multiple fluid packages per column environment; rate-based distillation models; enhanced sparse solver framework for VLLE three-phase distillation
Ammonia Reactor New unit operation for Haber-Bosch process modeling, tailored for fertilizer and chemical plant simulations
EO Blowdown Multi-outlet relief support; fire-case piping calculations for emergency depressurization scenarios

Thermodynamics & Property Packages

  • Property Package Assistant: Decision tree algorithm for automatic thermophysical property method recommendations, reducing setup time and improving accuracy for less experienced users

  • Electrolyte Model Enhancements: eNRTL improvements for aqueous systems

  • New Equations of State: UMR-PRU and additional mixing rules

  • Phase Stability Analysis Tool: For thermodynamic consistency verification

  • Freezing Point Calculation: New utility for solid-phase predictions

  • Calsep PVTsim Nova Integration: Enhanced support for JSON file exchange

User Experience & Productivity

  • Smart Copy Naming: Automated naming conventions when duplicating objects

  • PFD Color Legend: Visual customization for flowsheet clarity

  • Sidebar Automation Manager: Streamlined access to automation tools

  • Multi-Monitor Support: Enhanced display configuration for extended workspaces

  • Instant Font Preferences: Immediate application of font setting changes

  • Assay Definition Enhancements: Expanded oil characterization capabilities

Extensibility & Integration

  • UniSim Connect: Extended programmatic interface for custom automation and third-party integration

  • Heat Tracing Calculations: Pipe heat transfer enhancements for tracing systems

  • Safety Relief Valve: API method updates for pressure relief device sizing