Final Report on ITER Task Agreement 81-08

[摘要] As part of an ITER Implementing Task Agreement (ITA) between the ITER US Participant Team (PT) and the ITER International Team (IT), the INL Fusion Safety Program was tasked to provide the ITER IT with upgrades to the fusion version of the MELCOR 1.8.5 code including a beryllium dust oxidation model. The purpose of this model is to allow the ITER IT to investigate hydrogen production from beryllium dust layers on hot surfaces inside the ITER vacuum vessel (VV) during in-vessel loss-of-cooling accidents (LOCAs). Also included in the ITER ITA was a task to construct a RELAP5/ATHENA model of the ITER divertor cooling loop to model the draining of the loop during a large ex-vessel pipe break followed by an in-vessel divertor break and compare the results to a simular MELCOR model developed by the ITER IT. This report, which is the final report for this agreement, documents the completion of the work scope under this ITER TA, designated as TA 81-08.

[发布日期] 2008-03-01

[学科分类] 原子、分子光学和等离子物理

[关键词] ACCIDENTS;BERYLLIUM;DIVERTORS;DUSTS;HYDROGEN PRODUCTION;OXIDATION;SAFETY Beryllium Dust Oxidation Model;MELCOR;RELAP5/ATHENA