A three-dimensional transient neutronics routine for the TRAC-PF1 reactor thermal hydraulic computer code

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No present light water reactor accident analysis code employs both high state of the art neutronics and thermal-hydraulics computational algorithms. Adding a modern three-dimensional neutron kinetics model to the present TRAC-PFI/MOD2 code would create a fully up to date pressurized water reactor accident evaluation code. After reviewing several options, it was decided that the Nodal Expansion Method would best provide the basis for this multidimensional transient neutronic analysis capability. Steady-state and transient versions of the Nodal Expansion Method were coded in both three-dimensional Cartesian and cylindrical geometries. In stand-alone form this method of solving the few group neutron diffusion equations ... continued below

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290 p.

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Bandini, B.R. May 1, 1990.

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No present light water reactor accident analysis code employs both high state of the art neutronics and thermal-hydraulics computational algorithms. Adding a modern three-dimensional neutron kinetics model to the present TRAC-PFI/MOD2 code would create a fully up to date pressurized water reactor accident evaluation code. After reviewing several options, it was decided that the Nodal Expansion Method would best provide the basis for this multidimensional transient neutronic analysis capability. Steady-state and transient versions of the Nodal Expansion Method were coded in both three-dimensional Cartesian and cylindrical geometries. In stand-alone form this method of solving the few group neutron diffusion equations was shown to yield efficient and accurate results for a variety of steady-state and transient benchmark problems. The Nodal Expansion Method was then incorporated into TRAC-PFl/MOD2. The combined NEM/TRAC code results agreed well with the EPRI-ARROTTA core-only transient analysis code when modelling a severe PWR control rod ejection accident.

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290 p.

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INIS; OSTI as DE95007620

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  • Other Information: TH: Thesis (Ph.D.)

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  • Other: DE95007620
  • Report No.: LA-SUB--95-21
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/80751 | External Link
  • Office of Scientific & Technical Information Report Number: 80751
  • Archival Resource Key: ark:/67531/metadc740570

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Office of Scientific & Technical Information Technical Reports

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  • May 1, 1990

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  • Oct. 18, 2015, 6:40 p.m.

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  • July 28, 2016, 7:42 p.m.

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Bandini, B.R. A three-dimensional transient neutronics routine for the TRAC-PF1 reactor thermal hydraulic computer code, thesis or dissertation, May 1, 1990; New Mexico. (digital.library.unt.edu/ark:/67531/metadc740570/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.