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This paper presents a model for disassembly of the calandria tubes in Pressurized Heavy Water Reactors (PHWR) under severe accident conditions. Such a model gives criteria to decide when under severe accident condition calandria tube will get disassembled. Presently available severe accident codes use simplistic criteria based on a pre defined temperature to predict disassembly of fuel channels. The...
In the aftermath of catastrophes, it is common to find prior indicators, missed signals and missed alerts that if recognized and appropriately managed well in time, the undesirable events can be averted. It has lead to the practice of identifying such indicators, also known as precursors, and carrying out accident sequence precursor analyses. The results of such analyses help significantly in design...
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