SCDAP/RELAP5/MOD3.1, an integrated thermal hydraulic analysis code developed primarily to simulate severe accidents in nuclear power plants, was used to predict the progression of core damage during the TMI-2 accident. The version of the code used for the TMI-2 analysis described in this paper includes models to predict core heatup, core geometry changes, and the relocation of molten core debris to the lower plenum of the reactor vessel. This paper describes the TMI-2 input model, initial conditions, boundary conditions, and the results from the best-estimate simulation of Phases 1 to 4 of the TMI-2 accident as well as the results …
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Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
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Idaho Falls, Idaho
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SCDAP/RELAP5/MOD3.1, an integrated thermal hydraulic analysis code developed primarily to simulate severe accidents in nuclear power plants, was used to predict the progression of core damage during the TMI-2 accident. The version of the code used for the TMI-2 analysis described in this paper includes models to predict core heatup, core geometry changes, and the relocation of molten core debris to the lower plenum of the reactor vessel. This paper describes the TMI-2 input model, initial conditions, boundary conditions, and the results from the best-estimate simulation of Phases 1 to 4 of the TMI-2 accident as well as the results from several sensitivity calculations.
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Hohorst, J. K.; Polkinghorne, S. T.; Siefken, L. J.; Allison, C. M. & Dobbe, C. A.TMI-2 analysis using SCDAP/RELAP5/MOD3.1,
report,
November 1, 1994;
Idaho Falls, Idaho.
(https://digital.library.unt.edu/ark:/67531/metadc663865/:
accessed July 1, 2024),
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