Study of the Multivent Effects in a Large Scale Boiling Water Reactor Pressure Suppression System

摘要

Using the results from 5 of the GKSS pressure suppression tests, the chugging stage boundary load data (peak pressures and spectral power) have been evaluated for 'sparse' pool response (one and two vents in the three vent pool) and for 'full' pool response (one, two, or three vent pools of constant wetwell pool area per vent). The 'sparse' pool results indicate the pool-system, chug event boundary loads are strongly dependent on wetwell pool area per vent, with the load increasing with decreasing area. The 'full' pool results show a substantial increase in the pool-system, chug event boundary loads in changing from single cell to double cell operation; only minor change occurs in going from double to triple cell operation. (ERA citation 10:018412)