CRITICALITY STUDY FOR THE POST-ACCIDENT HEAT REMOVAL (PAHR) PROBLEM IN LIQUID METAL COOLED FAST BREEDER REACTORS
The work documented in this report has been performed in the frame of a study contract concluded between INTERATOM and the Commission of the European Communities (ECI-1054-B-7221-83-D). A map of effective multiplication factors k-eff and the corresponding critical masses for debris beds of different fuel, steel and sodium compositions and arrangements are given in form of tables, curves and analytical expressions. The following parameters have been varied : 1. Structure: four different states are considered: - debris bed saturated with liquid sodium - dry debris bed with sodium vapour - mixture of granulated fuel and molten steel - molten fuel covered with the corresponding steel fraction. 2. Composition: two different fractions of fuel and steel, typical for small (about 300 MWE) and large (about 1300 MWE) fast breeder reactor cores were chosen : - small breeder : V-fuel : V-ss = 35 : 20 (case A) - large breeder : V-fuel : V-ss = 45 : 15 (case B)
Bibliographic Reference: EUROPEAN APPLIED RESEARCH REPORTS + NUCLEAR SCIENCE AND TECHNOLOGY SECTION, VOL. 6 (1985), NO. 3, PP. 533-630, (EUR 9465 EN).
Availability: Can be ordered online
Record Number: 1989123094100 / Last updated on: 1987-01-01
Available languages: en