Development of Fuel Product Barrier Monitoring System Based on State Functions in State-Oriented Emergency Operating Procedure

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">State functions</td><td class="align_center">Safety functions</td><td class="align_center">Parameters</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Subcriticality (S/K)</td><td class="align_center">Reactivity</td><td class="align_center">Intermediate range detector (IRD)</td></tr><tr><td class="align_left">Residual heat removal [WR (P, T)]</td><td class="align_center">Core cooling</td><td class="align_center">RCS pressure (P RCS), subcooling margin (ΔTsat), and temperature at core outlet (T RIC)</td></tr><tr><td class="align_left">Primary water inventory (IE<sub>P</sub>)</td><td class="align_center"> </td><td class="align_center">Reactor pressure vessel water level (RPVL)</td></tr><tr><td class="align_left">Secondary water inventory (IE<sub>S</sub>)</td><td class="align_center"> </td><td class="align_center">SG water level wide range (L SG WR)</td></tr><tr><td class="align_left">Secondary integrity (INT<sub>S</sub>)</td><td class="align_center">Containment</td><td class="align_center">Steam line pressure and SG activity channels</td></tr><tr><td class="align_left">Containment integrity (INT<sub>E</sub>)</td><td class="align_center"> </td><td class="align_center">Containment pressure (Pcont) and containment dose rate (DRcont)</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Science and Technology of Nuclear Installations

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Table 1

Table 1: Development of Fuel Product Barrier Monitoring System Based on State Functions in State-Oriented Emergency Operating Procedure 