Open AccessRadiological and toxicological consequences of a worst-case spray leak related to project W-320
Author(s) -
D.A. Himes
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/362609
Subject(s) - leak , spark plug , radiological weapon , block (permutation group theory) , cover (algebra) , line (geometry) , engineering , environmental science , forensic engineering , environmental engineering , mechanical engineering , medicine , surgery , mathematics , geometry
An analysis was performed of radiological and toxicological consequences of a worst-case leak from a 2-inch diameter flush connection in a pit over tank AY-102. The unmitigated (without controls) flush line spray leak assumes that the blank connector and the removable plug in the pit cover block have been removed so that the maximum system flow is directed out of the open 2-inch line vertically into the air above the pit. The mitigated (with controls) spray scenario assumes the removable plug is in place and the flow is directed against the underside of the pit cover block. The unmitigated scenario exceeded both onsite and offsite risk guidelines for an anticipated accident. For the mitigated case all consequences are well within guidelines and so no additional controls are needed beyond the existing control of having all pit covers and removable plugs in place during any waste transfer