PHEBUS F.P. : A Severe Accident Research Programme for Current and Advanced Light Water Reactors
The ongoing PHEBUS FP programme is the centrepiece of an international cooperation investigating, through a series of integral in-pile experiments, key phenomena involved in the progression of a postulated severe accident in a light water reactor (LWR). The dedicated PHEBUS facility offers the capability to study actual core material degradation from the early phase of cladding oxidation and hydrogen production up to the late phase of melt progression and molten pool formation. The subsequent fission product and structural material release is also experimentally studied, including their physical-chemical interactions, their transport in the cooling system and their behaviour in the containment. The revolatilization of iodine, in particular, due to radiochemical effects in the water of the sump and the amount of low volatility fission products and transuranium elements reaching the containment are receiving a special interest, owing to the large uncertainties related to their modelling.
Bibliographic Reference: Article : Nuclear Engineering and Design (1996)
Record Number: 199610783 / Last updated on: 1996-08-16
Original language: en
Available languages: en