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Phast Risk (Software for the Assessment of Flammable, Explosive and Toxic Impact) is by far the most comprehensive quantitative tool available for assessing process plant risks. It is designed to perform all the analytical, data processing and results presentation elements of a QRA within a structured framework. Phast Risk analyses complex consequences from accident scenarios, taking account of local population and weather conditions, to quantify the risks associated with the release of hazardous chemicals.
As a major decision-support tool, Phast Risk can be used during your strategic planning, facility siting and layout, and for detailed risk and safety assessments. It will calculate the risk associated with your installation and produce risk contours, FN curves and rankings of risk contributors. With this information, the safety of an installation against any risk criteria can be assessed and guidance obtained concerning possible mitigation measures, such as changes in design, operation, response or land use planning. Risk results are available graphically and may be overlaid on digitised maps, satellite photos and plant layouts.
Phast Risk is designed to comply with the regulatory requirements of many countries. For example, specific modules have been included to ensure compliance with the Dutch Yellow Book and UK HSE regulations.
Phast Risk contains models tailored for hazard analysis of onshore industrial installations. These include:
Discharge and dispersion models, including DNV's proprietary Unified Dispersion Model (UDM).
Flammable models, including resulting radiation effects, for jet fires, pool fires and BLEVEs.
TNO Explosion model to calculate overpressure and impulse effects.
Models for the toxic hazards of a release including indoor toxic dose calculations
Benefits:
Facilitates cost reduction in terms of losses and insurance.
Risk ranking and hazard zone identification for guidance concerning possible mitigation measures including operation, emergency response or land use planning.
Provides traceability and consistency in calculations.
Generates FN Curves for comparison with legislative or user-defined acceptance criteria.
Incorporates the consequence modelling of the Phast process hazard analysis software.
A DIPPR™ database of over 1500 chemicals.
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