Convection and thermal radiation analytical models applicable to a nuclear waste repository room
Time-dependent temperature distributions in a deep geologic nuclear waste repository have a direct impact on the physical integrity of the emplaced canisters and on the design of retrievability options. This report (1) identifies the thermodynamic properties and physical parameters of three convection regimes - forced, natural, and mixed; (2) defines the convection correlations applicable to calculating heat flow in a ventilated (forced-air) and in a nonventilated nuclear waste repository room; and (3) delineates a computer code that (a) computes and compares the floor-to-ceiling heat flow by convection and radiation, and (b) determines the nonlinear equivalent conductivity table for a repository room. (The tables permit the use of the ADINAT code to model surface-to-surface radiation and the TRUMP code to employ two different emissivity properties when modeling radiation exchange between the surface of two different materials.) The analysis shows that thermal radiation dominates heat flow modes in a nuclear waste repository room.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6323636
- Report Number(s):
- UCID-18103; TRN: 79-012163
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
RADIOACTIVE WASTE DISPOSAL
GEOLOGIC DEPOSITS
RADIOACTIVE WASTE FACILITIES
HEAT TRANSFER
A CODES
COMPUTER CODES
T CODES
THERMAL RADIATION
THERMODYNAMIC PROPERTIES
UNDERGROUND DISPOSAL
UNDERGROUND SPACE
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
MANAGEMENT
NUCLEAR FACILITIES
PHYSICAL PROPERTIES
RADIATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
052002* - Nuclear Fuels- Waste Disposal & Storage