Thermal analysis of the drywell for the Nuclear Material Storage Facility

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Description

The Nuclear Materials Storage Facility Renovation Project has a conceptual design for the facility to store nuclear materials in containers inside drywells with passive cooling for long-term storage. The CFX thermal-hydraulic computer program was used to analyze internal heat-transfer processes by conduction, convection, and radiation with natural circulation of air by hydraulic buoyancy with turbulence and thermal stratification (TS) evaluated. A vertical drywell was modeled with 14 containers on support plates at 12-in. intervals. The TS of bay air outside the drywell increased the container maximum temperature by 0.728 F for each 1.0 F of bay-air TS from the bottom ... continued below

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34 p.

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Steinke, R.G. February 1, 1997.

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Description

The Nuclear Materials Storage Facility Renovation Project has a conceptual design for the facility to store nuclear materials in containers inside drywells with passive cooling for long-term storage. The CFX thermal-hydraulic computer program was used to analyze internal heat-transfer processes by conduction, convection, and radiation with natural circulation of air by hydraulic buoyancy with turbulence and thermal stratification (TS) evaluated. A vertical drywell was modeled with 14 containers on support plates at 12-in. intervals. The TS of bay air outside the drywell increased the container maximum temperature by 0.728 F for each 1.0 F of bay-air TS from the bottom to the top of the drywell. The drywell outer-surface peak heat flux was shifted downward because of the effect of bay-air TS. An equivalent model was evaluated by the nodal-network conduction, convection, and radiation heat-transfer computer program (Thermal System Analysis Program) TSAP. The TSAP results are in good agreement with the CFX-model results, with the difference in results understood based on the approximations of each model.

Physical Description

34 p.

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INIS; OSTI as DE97003286

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  • Other Information: PBD: [1997]

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  • Other: DE97003286
  • Report No.: LA-UR--97-118
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/441682 | External Link
  • Office of Scientific & Technical Information Report Number: 441682
  • Archival Resource Key: ark:/67531/metadc676499

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Feb. 29, 2016, 7:52 p.m.

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Steinke, R.G. Thermal analysis of the drywell for the Nuclear Material Storage Facility, report, February 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc676499/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.