COBRA-SFS. Thermal Hydraulic Analysis of Spent Fuel Casks
- Pacific Northwest Lab., Richland, WA (United States)
COBRA-SFS (Spent Fuel Storage) is a code for thermal-hydraulic analysis of multi-assembly spent fuel storage and transportation systems. It uses a lumped parameter finite difference approach to predict flow and temperature distributions in spent fuel storage systems and fuel assemblies, under forced and natural convection heat transfer conditions. Derived from the COBRA family of codes, which have been extensively evaluated against in-pile and out-of-pile data, COBRA-SFS retains all the important features of the COBRA codes for single phase fluid analysis, and extends the range application to include problems with two-dimensional radiative and three-dimensional conductive heat transfer. COBRA-SFS has been used to analyze various single- and multi-assembly spent fuel storage systems containing unconsolidated and consolidated fuel rods, with a variety of fill media, including air, helium and vacuum. Cycle 0 of COBRA-SFS was released in 1986. Subsequent applications of the code led to development of additional capabilities, which resulted in the release of Cycle 1 in February 1989. Since then, the code has undergone an independent technical review as part of a submittal to the Nuclear Regulatory Commission for a generic license to apply the code to spent fuel storage system analysis. Modifications and improvements to the code have been combined to form the latest release of the code, Cycle 2.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 649358
- Report Number(s):
- ESTSC-000135MLTPL00
- Resource Relation:
- Other Information: DN: COBRA-SFS expects the input file to be a local file named `input`. Optional grey body view factors are read from local file `tape10`. Optional restart input is read from local file `tape8`. Code results are written to local file `output`. Optional output for later restart is written to local file `tape8`. Optional plotting information is written to local file `tape7`.; PBD: 1 Sep 1995
- Country of Publication:
- United States
- Language:
- English
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Thermal Hydraulic Analysis of Spent Fuel Casks
COBRA-SFS (Spent Fuel Storage): A thermal-hydraulic analysis computer code: Volume 3, Validation assessments