STUDY OF REWETTING AND QUENCH PHENOMENA BY SINGLE PIN OUT-OF-PILE EXPERIMENTS, WITH SPECIAL EMPHASIS ON THE EFFECTS OF PIN COMPOSITION
A series of comparative experiments with single electrically heated fuel pin simulators of different compositions is performed under identical boundary conditions simulating emergency core cooling by reflooding. Three types of pins are used. A hollow tube heated directly by Joule heating, an indirectly heated rod with an internal heater and the space between the heater and the cladding filled with alumina powder, and finally another indirectly heated rod with the space filled with UO-2 ring pellets, simulating very closely a real fuel rod. The experimental results have been compared to calculations with the computer code NORCOOL-II. A rather good agreement have been achieved between experiments and calculations for a wide range of parameters, i.e. rod composition, flow rate, system pressure.
Bibliographic Reference: EUR 10075 EN (1985) MF, 81 P., BFR 150, BLOW-UP COPY BFR 405, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123115600 / Last updated on: 1987-01-01
Available languages: en