The recent release focuses on accuracy and the energy transition:

Meets OSHA PSM and EPA RMP requirements.

For flammable releases, Phast tracks the Lower Flammable Limit (LFL) and Upper Flammable Limit (UFL). The software marks the regions where the vapor cloud is within these boundaries, identifying the exact zone vulnerable to delayed ignition and subsequent flash fires. Step 5: Generating Reports and Mapping Spatial Overlays

DNV provides a tiered training structure to help users progress from basic modeling to advanced risk analysis:

For materials denser than air (like Chlorine or cold LNG vapors). Passive Dispersion: For neutrally buoyant clouds.

The official tutorial manual provides an excellent, step-by-step workflow. Here is a summary of what you will learn:

Define the vessel type (atmospheric storage tank, pressurized vessel).

The modern Phast interface relies on a standard ribbon-based workspace designed for an intuitive, top-to-bottom workflow. The Study Tree