This week CRA Consultant, Bernat Cirera, is attending the “First Research Coordination Meeting on the Development of Approaches, Methodologies and Criteria for Determining the Technical Basis for Emergency Planning Zone for Small Modular Reactor Deployment” at the International Atomic Energy Agency (IAEA) in Vienna.
This four day meeting, that commenced on Monday 14 May 2018, will involve the opinion of experts from across the globe (around 15 countries) to find common ground for determining the Emergency Planning Zone (EPZ) size for Small Modular Reactors (SMRs). CRA will participate in this research group with IAEA for a duration of three years.
SMRs, with electrical power up to 300 MW per module, have specific design, safety and siting features. Two of the main issues requiring resolution for SMRs deployment is adequate Emergency Preparedness and Response (EPR) arrangements, particularly the size of designated Emergency Planning Zones (EPZs). EPR is one of the elements in the development of a national infrastructure for nuclear power, while EPZ is one of the specific regulatory aspects.
About the IAEA Meeting*
The key objective of this Coordinated Research Project (CRP) is to develop approaches and methodologies for determining the appropriate size of EPZs. This work will include assessment of relevant design and safety features of SMRs and the extent of necessary offsite arrangements, by comparing design and site-specific technical basis, provided by SMR developers, nuclear regulators, emergency planners and users/utilities. Specifically:
1. Formulate criteria for the events and technical aspects to be considered for defining EPR arrangements for SMR, focusing on EPZ sizing. This should be based on the results of the research and implementation of defence-in-depth in the design of SMRs, including small power, smaller source term, increased safety margin, enhanced engineered safety system, smaller fission product release, and consequent reduced potential for radiation exposure to population in the vicinity of the plant;
2. Develop approaches and methodologies which enable relating safety features of SMRs with the extent of offsite arrangements needed, particularly the size of EPZ, by comparing design- and site-specific technical basis to be provided by SMR developers, nuclear regulators, emergency planners and users/utilities;
3. Provide suitable technical basis, as an input into the development of IAEA technical guidance (EPR series report) on EPR arrangements for SMRs. Also, additional input into new guidance regarding source term definition and assessment could be derived on that basis, as appropriate.
For more information about CRA’s SMR capabilities, contact Bernat Cirera – firstname.lastname@example.org
*CRP overview sourced from IAEA website.