[2E15-18] LWR performance duirng an accident 2

[2E15] Study on molten core coolability under precautionary water injection into containment vessel

(1)Total Plan

*Akitoshi Hotta¹, Miyuki Akiba¹, Akinobu Morita¹ (1.Regulatory Standard and Research DepartmentSecretariat of Nuclear Regulation Authority (S/NRA/R))

Keywords:Molten core, Debris coolability

An accident management of precautionary water injection into the containment vessel has been adopted in Japanese LWRs. In order to clarify underlying mechanisms of debris bed morphology and cooling under completely or partially submerged conditions, a series of experimental and analytical research works have been started.