Fast Reactors and Accelerator Driven Systems Knowledge Base

Conference Article: RAPSODIE core mock-up seismic analyses by FINDS code

Itoh, K. (Mitsubishi Atomic Power Industries, Yokohama (Japan)); Sato, T.; Aizawa, I. (Nuclear Development Corp., Tokai, Ibaraki (Japan))

Abstract

FINDS code which has capabilities of PWR and LMR cores deflection and colliding behaviors under earthquake conditions has been applied to the RAPSODIE core mock-up test data analyses to confirm the code capabilities to simulate LMR core seismic behaviors, succeeding PEC core seismic analyses, the results of which were presented at the former CRP meeting held in Vienna 1993. The RAP087 AX01 wave test case in air condition was selected for the calculation where 19 assemblies of one array are modeled. In addition the RAPZIMME32 wave test in water condition was selected where whole assemblies composing the RAPSODIE three dimensional mockup are modeled in the FINDS calculations. Then it was assured that the RAPSODIE displacements data can be reproduced by the FINDS code model for both one row and three dimensional cases, and three dimensional movements are recognized by the graphical presentations, although,:-slight discrepancy exists in neutronic shield elements displacements.

view the full text of this article (42 pages, format: PDF, size= 1399kB)

key words: f codes; mockup; rapsodie reactor; reactor cores; seismic effects; simulation
Reference:
Research co-ordination meeting on intercomparison of liquid metal fast reactor seismic analysis codes. Vienna (Austria). 26-28 Sep 1994
International Atomic Energy Agency, Vienna (Austria)
IAEA-TECDOC--829, pp:37-78