Study on Offsite Emergency Preparedness for the Industry Application of HTR-PM

Abstract

The offsite consequence study on High Temperature Gas Cooled Reactor Pebble-bed Module (HTR-PM) shows that its emergency planning zone (EPZ) for whether plume exposure pathway or ingestion exposure pathway can both be limited within the exclusion area boundary (EAB) of nuclear power plant (NPP), which is about a few hundred meters away from the reactor. This conclusion provides theoretical basis and strong technical support for potential industrial applications of HTR-PM. By this premise, the coupling risk for the industrial application of HTR-PM is quantitatively evaluated in this paper. The results indicate that the risk increments for both HTR-PM and industrial facility due to the colocation on one site could ensure they still meet their corresponding risk criteria. On this basis, the current proper management mode is recommended for the ally of HTR-PM and industrial facilities from technical perspective, which is the onsite of this HTR-PM-industry ally can adopt the mode of separated management, while the offsite co-management. Further, the final suggestions on offsite emergency preparedness for this HTR-PM-industry ally are also given out co-considering the current policy, practice and public acceptability. This work will also support the industrial application of other advanced reactors with inherent safety features.