FLACS Effects Software
A Gexcon X Suite Product

Advanced, easy-to-use consequence analysis

A loss-of-containment scenario in the (petro)chemical industry can be devastating, for both property and human life. EFFECTS is easy-to-use, affordable software that helps safety professionals calculate and analyze the effects of these scenarios and develop the right prevention or containment protocols. In just a few easy clicks, you can determine the precise consequences of any scenario, and share your findings with all relevant stakeholders.

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Analysis of Scenarios

Analysis of Scenarios

With EFFECTS, you can model the behaviour of toxic or flammable gases, liquefied gases or liquids from initial release to effects kilometres away. You’ll be able to simulate the effects of accidental releases under all process conditions and weather types.


EFFECTS calculates heat radiation from fire, over-pressures from explosions, toxic concentrations and toxic doses from dispersion, and much more. Of course, EFFECTS also allows you to calculate the consequence to human life (lethality) and structure damage.

Take Comprehensive Control

Take Comprehensive Control

EFFECTS contains more than 2200 known chemical components from the DIPPR® chemical database. It also lets you define customised chemicals and mixtures, specific to your own organisation.


Use the more than 70 models in EFFECTS to calculate accident scenarios including, but not limited to:

  • leaks and ruptures in pipelines, pressure valves, vessels and storage tanks
  • confined gas explosions
  • BLEVEs
  • drifting toxic clouds
  • jet, pool, rim, bund, or rooftop fires
Accuracy and Usability

Accuracy and Usability

Accurate calculations require realistic visualisations. So EFFECTS allows you to use your own maps, drawings or aerial photography, or you can link to online maps to create realistic scenario settings.

The system allows seamless integration with Microsoft Office™, Google Earth® and dedicated GIS software, so you can drag and drop images, copy/paste reports, and create professional presentations in just minutes.

Trust the Transparency

Trust the Transparency

The “Coloured Books” are used around the world as valuable standard reference material in safety studies. They were used as the basis for the software programs EFFECTS and RISKCURVES and still are the reference for most of the models in this software. The studies were initiated by the Dutch Government in the 1990’s.

The models used in EFFECTS are described in detail in the ‘Yellow Book’ and the ‘Green Book’

EFFECTS: Advanced, easy-to-use consequence analysis

Software that streamlines safety analysis

Free FLACS-EFFECTS software download

You can download a free version to view already-calculated projects. To save projects, make calculations and gain access to the extended chemical database, flexible licensing is available

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