Preliminary Analysis of Loss of Vacuum Events in ARIES-RS

12/4/99


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Table of Contents

Preliminary Analysis of Loss of Vacuum Events in ARIES-RS

The risk dominant events based on ITER experience are those associated with bypass of radiological confinement barriers

Loss of Vacuum Event Scenario

Assumptions

Other cases were studied to determine sensitivities

MELCOR was used to analyze this event MELCOR is a fully integrated, engineering-level computer code that models the progression of accidents in light water reactor (LWR) nuclear power plants, including reactor cooling system and containment fluid flow, heat transfer, and aerosol transport. (Developed by Sandia National Laboratory)

Thermal Hydraulic Results

Radiological Results

Results compare favorably to no-evacuation release limits for tungsten

Summary of Findings

Future Work

Author: Mark Tillack

Email: mtillack@ucsd.edu

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