Phast and Safeti are available in English, Spanish and Chinese.
General requirements
Operating system: 64 bit Windows 8.1, 64 bit Windows 10 or 64 bit Windows 11 or later versions with latest Windows Updates and Windows Security patches.
Display: 1024x768 resolution or higher, 1920x1080 (recommended)
Video card: Any good video card and screen supporting 1920x1080 with latest video driver installed. For Safeti, any CUDA 11 compatible video card recommended with “compute capability 5.0” or higher. See here for more information.
Microsoft Excel: required only if using the Excel import/export functionality
Citrix, Microsoft Hyper-V, Oracle VirtualBox, VMware virtualisation tools are not supported.
Phast requirements
Typical use case: Modelling a small number of scenarios per study (e.g. vent dispersion, emergency scenario modelling, etc)
Requirements: 2 GB RAM, Intel i5 or better CPU with 2 or more cores, 5 GB free hard disk space
Typical use case: Modelling a large number of scenarios per study (e.g. as input to QRA, FERA, etc)
Requirements: 8 GB RAM, Intel i5 or better CPU with 4 or more cores, 10 GB free hard disk space
Typical use case: Running CFD calculations
Requirements: 32-64 GB RAM, Intel i9 or better with 8 or more cores, 50 GB free hard disk space
Safeti requirements
Typical use case: Performing QRA/FERA for small/medium size sites such as LNG terminals gas terminals
Requirements: 8-32 GB RAM, Intel i7 or better with 4 or more cores, 50 GB free hard disk space
Typical use case: Performing QRA/FERA for large sites such as refineries or multiple pipelines
Requirements: 32-64 GB RAM, Intel i9 or better with 8 or more cores, 100 GB free hard disk space
Comments on RAM
Phast and Safeti can use significant amounts of memory especially for large studies. Having more memory reduces the possibility of reaching physical memory as the number of scenarios in your study grows. If you reach physical memory limits you will most likely see slower run times and could see run-time failures.
Comments on hard disk
Phast and Safeti makes a lot of use of the hard disk for storing temporary files when loading, saving and running calculations. There are two main considerations:
The user interface is built using C# WPF targeting .NET Framework 4.8. Risk Results are stored using Microsoft SQL Server. The calculation models are mainly developed in C++ or Fortran.
Yes, DNV offers a wide range of training courses, available here.
All versions of Phast and Safeti can be downloaded via our Knowledge Centre.
The Knowledge Centre also provides release notes, detailing updates to each version.
In the context of consequence modelling, a free-field is an open environment without any obstacles or undulating terrain to affect dispersion, fires or explosions. Consequence calculations in this environment are simpler than those where obstacles or undulating terrain need to be taken into account. The duration of a free-field modelling calculation for a single scenario will typically be of the order seconds.
Where it is important to consider obstacles or undulating terrain, computational fluid dynamics (CFD) is the preferred solution. The duration of the calculations, being significantly more complex, will typically be of the order minutes to hours..
A QRA is a numerical method for predicting the consequences and risk associated with hazardous facilities or operations. More details are provided in this webinar.
Our QRA solutions focus on fatality risk (individual and societal). Our QRA software produces metrics which can also be used to assess environmental risk, asset risk and financial risk.
Phast/Safeti is used typically in the following industries:
Phast/Safeti is used typically for the following asset types:
Our consequence and risk analysis solutions can be used in all stages of an asset's lifecycle. Often, the earlier consequences and risks are understood, the more valuable the insights prove to be.
Phast is typically used in the following applications:
In addition to having the applications of Phast, Safeti is typically used in the following applications:
Phast/Safeti calculates the discharge, dispersion and flammable and toxic effects associated with loss of containment scenarios. It can be used to model pool spreading and evaporation, fires (jet, pool and fireballs), explosions, BLEVE and toxic effects.
For pressure vessels, Phast/Safeti is able to model instantaneous releases (e.g. catastrophic rupture) and continuous releases (e.g. leaks from pipework). For continuous releases, Phast/Safeti can model constant or time-varying release rates, fixed duration releases, short pipe releases (line rupture, disc rupture and relief valve). Further, Phast/Safeti has a user-defined source, giving full control for the users to define the source terms.
In addition to the above, Phast/Safeti can model spills from atmospheric tanks and vent releases from the vapor space.
The Multi-Component extension allows consequence modelling of hazardous multi-component two-phase releases into the atmosphere. To find out more about DNV's approach on two-phase multicomponent modelling, refer to "Modelling the Consequences of Hazardous Multi-Component Two-Phase Releases to the Atmosphere", H. Witlox, M. Harper et al (2005).
Yes, Phast and Safeti can model toxic releases, including modelling of asphyxiation. DNV's Unified Dispersion Model (UDM) is used to determine the dispersion of a toxic material (or in the case of asphyxiation, any inert gas that reduces or displaces the oxygen concentration) over time, which will be used to determine the concentration of a material at a specific location in a given time.
Yes, Phast has the capability to model hydrogen, carbon dioxide, nitrogen and ammonia releases.
Yes, Phast/Safeti can model LNG and LPG releases.
Phast/Safeti can model "in-building" releases, where the build-up of concentration indoors and subsequent dispersion outdoors is modelled. Explosion effects inside the building are also presented.
Testing of the software includes: 1) Verification of the consequence models to ensure that the code correctly solves the associated mathematical model, 2) Validation of the results against experimental data, and 3) Sensitivity analysis by varying a large number of parameters to ensure overall robustness of the code.
DNV has produced a document which describes the verification and validation process for the modelling of flammable and toxic releases. This can be made available upon request.
Phast and Safeti support import of shape files from Google Earth or other GIS. Consequence and risk contours can be exported shapefile (*.shp) for import into Google Earth or other GIS. Our product videos catalog has instructions for getting the most from Phast and Safeti's GIS.
We offer a range of lease / subscription options from 1-day up to 3 years as well as perpetual. Lease / subscription options are available to purchase digitally using credit card or invoicing via our Veracity marketplace.
Lease / subscription and perpetual options are also available by speaking to a sales manager.
We offer the following types of licence:
Phast/Safeti can be installed on your own PC or can be pre-installed on a virtual machine. Please go to our Veracity marketplace for more details.
It is not possible to transfer an individual Phast license from one machine to another. We have other licence types (dongle and network) which support multiple users in an organization.