BWR program at ORNL - MELRPI code

Since 1980, a series of accident studies concerning the Boiling Water Reactor (BWR) - MARK I containment plant design have been conducted by the Severe Accident Sequence Analysis (SASA) program at the Oak Ridge National Laboratory (ORNL). The SASA program is sponsored by Containment Systems Research Branch, Division of Accident Evaluation, United States Nuclear Regulatory Commission (USNRC). The program performs analysis in three major areas: plant response to operator actions before core uncovery; events from the onset of core uncovery through core melting, reactor vessel failure, and containment failure; and fission product release pathways, and the timing and magnitude of the releases. Analytical tools include the BWR-LTAS, MARCON2.OB, CORCON, TRENDS, Secondary Containment Model (SCM), and MELRPI computer codes. 2 refs., 2 figs