LMFBR Loss of Flow Simulations in the Sodium Loop Safety Facility

[+] Author and Article Information
W. A. Ragland

Sodium Loop Safety Facility, Reactor Analysis and Safety Div., Argonne National Laboratory, Argonne, Ill.

J. Eng. Power 103(4), 605-611 (Oct 01, 1981) (7 pages) doi:10.1115/1.3230782 History: Received April 21, 1980; Online September 28, 2009


A series of three LMFBR unprotected loss of flow (LOF) accidents has been simulated in the Sodium Loop Safety Facility (SLSF). The results of these in-reactor experiments verify that the dynamics of sodium voiding are, in general, well represented by current single channel slug expulsion models. Some refinement in the models in the very early stages of voiding would be desirable to account for minor two dimensional effects. However, cladding motion is not as well understood and current modeling does not accurately predict all of the aspects of blockage formation. Two of the three experiments produced partial rather than complete upper blockages as had been predicted. Predictions of time of fuel melting appear relatively accurate. In general, the sequence of events is correctly predicted and the timing of these events is relatively accurate. Reactivity measurements and post-test examinations indicate that no significant fuel compaction occurred. This behavior would prevent an energetic recriticality in an LOF accident.

Copyright © 1981 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In