Corium melt quenching tests at low pressure and subcooled water in FARO
The first two corium melt quenching tests in subcooled water performed in the FAT FCI vessel of the FARO facility are described. The tests, referenced as L-29 and L-31, involved 39kg and 92 kg of 80w% UO2 +20 w% ZrO2 melt, respectively. The molten material was poured in a 1.5-m-depth pool of water at 0.2MPa and ambient temperature. No spontaneous steam explosion occurred. The quenching process was different between the two tests, producing a conglomerate debris bed in L-29 and a particulate debris bed in L-31, with higher thermal load in L-29 than in L-31. A difference in the melt initial temperature is believed to be the cause of this dissimilarity.
Bibliographic Reference: Paper presented: Ninth International Topical Meeting on Nuclear Thermal Reactor Hydraulics, California (US)
Availability: Available free of charge from Public Relations and Publications Unit, Ispra (IT)
Record Number: 199911675 / Last updated on: 1999-12-24
Original language: en
Available languages: en