Aerosol Resuspension Model for MELCOR for Fusion and Very High Temperature Reactor Applications

Merrill, B.J.

Idaho National Laboratory

关键词: Particle Resuspension;    Dusts;    Aerosols;    Thermonuclear Reactors;    Aerosol;   

DOI  :  10.2172/1009161
RP-ID  :  INL/EXT-10-19683
RP-ID  :  DE-AC07-05ID14517
RP-ID  :  1009161

美国|英语

来源: UNT Digital Library

【 摘 要 】

Dust is generated in fusion reactors from plasma erosion of plasma facing components within the reactor’s vacuum vessel (VV) during reactor operation. This dust collects in cooler regions on interior surfaces of the VV. Because this dust can be radioactive, toxic, and/or chemically reactive, it poses a safety concern, especially if mobilized by the process of resuspension during an accident and then transported as an aerosol though out the reactor confinement building, and possibly released to the environment. A computer code used at the Idaho National Laboratory (INL) to model aerosol transport for safety consequence analysis is the MELCOR code. A primary reason for selecting MELCOR for this application is its aerosol transport capabilities. The INL Fusion Safety Program (FSP) organization has made fusion specific modifications to MELCOR. Recent modifications include the implementation of aerosol resuspension models in MELCOR 1.8.5 for Fusion. This paper presents the resuspension models adopted and the initial benchmarking of these models.