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U.S. Department of Energy
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Safety and licensing analysis of 471 MWt PRISM reactor module

Conference ·
OSTI ID:5486912
;  [1]; ;  [2]
  1. Brookhaven National Lab., Upton, NY (United States)
  2. Nuclear Regulatory Commission, Washington, DC (United States)

Independent analyses of unscrammed events postulated for the 471 MW PRISM reactor module, as performed by Brookhaven National Laboratory for the US Nuclear Regulatory Commission, are discussed. Peak fuel, cladding, and sodium temperatures for several postulated events were compared against current temperatures limits. For the postulated unscrammed loss of flow (ULOF) events, the newly added Gas Expansion Modules (GEMs), have improved the passive shutdown response. For the unscrammed transient over-power (UTOP) events, uncertainties with respect to the behavior of ternary metal fuel leave unresolved the issue of how large a UTOP initiator (between 20 and 40 cents) may be acceptable. 8 refs., 4 figs.

Research Organization:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Organization:
NRC; Nuclear Regulatory Commission, Washington, DC (United States)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
5486912
Report Number(s):
BNL-NUREG-46512; CONF-911001--4; ON: DE91017470
Country of Publication:
United States
Language:
English