FRS - RAD

FRS – RAD

During a scenario resulting in the loss of fission product barriers, radioisotope transport calculations can be integrated into FRS to provide real-time evaluation into potential radiation exposures both internal to the facility and offsite.  Radioisotope transport model inputs are integrated into FRS based on the accident scenarios and displayed on detailed room drawings within the plant. Offsite dispersion modeling can also be integrated into FRS based on source term and meteorological conditions.  All modeled parameters can be updated in real time during an EP drill.

FRS provides customized modules to assist personnel with the ability to quickly visualize and understand current operating status, equipment unavailability, and/or failures.  This allows for timelier implementation of focused mitigation strategies for incident resolution.

The RAD module is an interactive tool which uses either external radioisotope transport data or built-in models to provide real time or projected time at the click of a button based on other plant conditions that exist specific to the event or drill.

Radiation Field Intensity Estimation
Input the original start time of the event and estimate the radiation field intensity or dose at specified locations. A timer is initiated and provides real time updates based on actual time since the start of the event or drill. Based on known failures and the state of plant systems, FRS displays existing model information to assist operators with understanding radiation levels that may impact mitigation strategies.

 

Radioisotope inventory
Radioisotope inventory starts accumulating as recirculation mode for reactor core cooling is established. Estimate the radiation level over a specific period of time in an area which needs to be accessed while executing mitigation procedures. Estimates are provided for predefined points or in-plant detectors.

 

Estimated levels
During an actual event, FRS would aid in providing estimated radiation levels due to radioisotopes in piping systems based on plant designed models of similar scenarios. Actual levels would be collected by field or installed radiation detectors. Detector information can be updated inside FRS using a “Manual Update” which would refine radiation estimates based on actual plant conditions.

FRS-RAD is built to estimate specific plant radiological conditions based on location and pipe routings.  The complex logic updates instantly to provide plant conditions.  Adding RAD to an already complex system makes an FRS tool that provides risk insights to different departments at a facility.
 
Recovery procedures may be time-based on mechanical limits (e.g. 6 hours to deplete a cooling water storage tank); use FRS to estimate radiation intensity and potential operator dose and update procedures to minimize potential hazards

PFP - nuclear facility

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Depicts system and equipment status in user-familiar formats.

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FRS brochure

FRS brochure

Download the Facility Response Simulation (FRS) brochure.

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Symbols and layouts can be customized to meet user preferences.

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Planning, engineering, rad protection, operations and security.

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Mitigation strategies for beyond-design-basis external events.

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Defines a threshold to place the plant in an emergency classification level.

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Develop and document safe shutdown fire area strategies.

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