Expected environments for a defense high-level waste repository in salt
Expected environments for a defense high-level waste (DHLW) repository in salt have been predicted analogously to previous analyses for spent fuel (SF) and reprocessed commercial high-level wastes (CHLW). Environments predicted include near-field and far-field temperatures, fluid, pressure, and nuclear radiation fields. Some sensitivity studies have also been performed. The main results of the calculations reported here include the following: (1) rock temperatures, canister wall temperatures, and waste temperatures do not exceed 86, 94, and 101/sup 0/C, respectively; (2) the maximum brine inflow rate to an emplacement hole is 0.015 L/yr, occurring in the first 30 yr after emplacement. The total accumulation of brine migrating to the emplacement hole after 1000 yr is < 0.5 L; (3) gas pressures encountered by the waste package do not exceed 0.36 MPa prior to mine closure. After this time, it is conceivable that stress on the canister could approach the lithostatic rock stresses; (4) maximum dose rates in the salt are < 1400 rads/h.
- Research Organization:
- Science Applications, Inc., Oak Ridge, TN (USA); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6628140
- Report Number(s):
- ORNL/TM-7597; TRN: 81-004618
- Country of Publication:
- United States
- Language:
- English
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Typical repository conditions for generic commercial and defense high-level nuclear waste and spent fuel repositories in crystalline rock
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Related Subjects
54 ENVIRONMENTAL SCIENCES
BRINES
DIFFUSION
RADIOACTIVE WASTE DISPOSAL
HIGH-LEVEL RADIOACTIVE WASTES
SALT DEPOSITS
RADIATION EFFECTS
CONTAINERS
INCLUSIONS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
RADIATION DOSES
ROCKS
TEMPERATURE MEASUREMENT
UNDERGROUND DISPOSAL
DOSES
GEOLOGIC DEPOSITS
MANAGEMENT
MATERIALS
POLLUTANTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
510500 - Environment
Terrestrial- Site Resource & Use Studies- (-1989)