Document Details


Title:
Seventh Weekly Progress Report on Oak Ridge National Laboratory Waste Disposal
Author(s):
Subject Terms:
particles, isotope, ORNL; progress report; slug, pile, decontamination; waste disposal, filters
Document Location:
DOE INFORMATION CENTER 1 Science.gov Way, Oak Ridge, TN 37831; Eva Butler; Phone: 865-241-4780; Toll-Free: 800-382-6938, Option 6; FAX: 865-574-3521; Email: doeic@oro.doe.gov
Document Categories:
Health, Safety and Environment\Waste Management
Document Type:
REPORT
Publication Date:
1948 Nov 08
Declassification Date:
1997 Oct 20
Declassification Status:
Declassified
Document Pages:
12
Accession Number:
ORF65756
Document Number(s):
CF-48-11-108, Copy 6
Originating Research Org.:
Oak Ridge National Laboratory
OpenNet Entry Date:
1998 Jun 16
Description/Abstract:
This memorandum summarizes the work accomplished during the past week on the waste disposal work of the Laboratory. The construction of the building to house filters to clean the pile exit cooling air is 90 percent complete. Work has continued on the study of the reduction in air flow from the isotope and pilot plant areas. Effort was directed at obtaining information about the cause of blistering of slugs used in Oak Ridge National Laboratory Pile, and experiments were carried out. On the basis of inconclusive evidence, highly tentative conclusions were: heating of Oak Ridge slugs to temperatures of 350 degrees Celsius and higher produces interaction of can and slug resulting in blisters on the cans; intimate contact of can and slug while heated at elevated temperature is necessary for blister formation; two distinct types of ruptures appear in Oak Ridge slugs heated in the range of 450 degrees Celsius to 550 degrees Celsius (1) one or two large blisters form quickly, and rupture occurs at one of the blisters within a short period; and (2) many blisters form on the slug and reach maxium size within a short period, and after an extended period, rupture occurs at one of the blisters. In the case of (1), it is felt that rupture is a direct result of gas pressure, and shows no evidence of UA1-3 formation, and in case (2), it is thought that gradual reduction in thickness of the can wall by formation of UA1-3 produces failure by rupture. On the basis of a small number of tests, it would appear that Class 2 Oak Ridge slugs when heated to temperatures of 450 degrees Celsius to 550 degrees Celsius show considerably more instances of cans being bulged out by gas pressue within the can than do Class 1 slugs. Further work is needed to substantiate these findings. Photographs and charts are included.


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