Experiment Analysis and Summary Report for LOFT (Loss-of-Fluid Test) ATWS (Anticipated Transients without Scram) Experiments L9-3 and L9-4.

摘要

Experiments L9-3 and L9-4 were conducted on April 7, 1983, and September 24, 1983, respectively, in the Loss-of-Fluid Test facility. These experiments simulated a complete loss-of-all-feedwater (Experiment L9-3) and a station-blackout (Experiment L9-4) anticipated transient without scram. This report presents the experimental results and compares the data to postexperiment calculations made using the RELAP5/MOD1 computer code. Conclusions are drawn regarding the inherent ability of the plant to shut down the reactor without operator intervention, the effectiveness of a recovery procedure, and the ability of RELAP5/MOD1 to calculate the dominant phenomena.