Multivent effects in a large scale boiling water reactor pressure suppression system

Conference · Fri Jul 06 04:00:00 EDT 1984

OSTI ID:6797424

McCauley, E W; Aust, E; Schwan, H

The steam-driven GKSS pressure suppression test facility, which contains 3 full scale vent pipes, has been used for 5 years to investigate the postulated loss-of-coolant accident in a Mark II and Type 69 boiling water reactor. Using the results from several of these tests, wetwell boundary load data (peak pressures and spectral power) during the chugging stage, 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 operation in 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 upon a change from single cell to double cell operation; only minor change occurs in going from double to triple cell operation.

• Research Organization: Lawrence Livermore National Lab., CA (USA); GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany, F.R.)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6797424
• Report Number(s): UCRL-91369; CONF-840914-5; ON: DE84016228
• Country of Publication: United States
• Language: English

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