D9 experiment: heat removal from stratified UO/sub 2/ debris

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Description

The D9 experiment investigated the coolability of a shallow (77 mm), stratified urania bed in sodium. The bed was fission heated in the Annular Core Research Reactor (ACRR) at Sandia National Laboratories to simulate the effects of radioactive decay heating. It was the first stratified debris bed experiment to use an extended UO/sub 2/ particle size distribution (0.038 to 4.0 mm). Dryout occurred at powers ranging from 0.10 to 0.58 W/g, which was close to the incipient boiling power and before channels penetrated the subcooled zone in the bed, even with subcoolings as low as 80/sup 0/C. Channel penetration was ... continued below

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Pages: 70

Creation Information

Ottinger, C A; Mitchell, G W; Lipinski, R J & Kelly, J E April 1, 1985.

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Description

The D9 experiment investigated the coolability of a shallow (77 mm), stratified urania bed in sodium. The bed was fission heated in the Annular Core Research Reactor (ACRR) at Sandia National Laboratories to simulate the effects of radioactive decay heating. It was the first stratified debris bed experiment to use an extended UO/sub 2/ particle size distribution (0.038 to 4.0 mm). Dryout occurred at powers ranging from 0.10 to 0.58 W/g, which was close to the incipient boiling power and before channels penetrated the subcooled zone in the bed, even with subcoolings as low as 80/sup 0/C. Channel penetration was observed after dryout began, but the bed became only moderately more coolable. All these observations agree with current models.

Physical Description

Pages: 70

Notes

NTIS, PC A04/MF A01 - GPO.

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  • Other: TI85014238
  • Report No.: NUREG/CR-2951
  • Report No.: SAND-84-1838
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5497413 | External Link
  • Office of Scientific & Technical Information Report Number: 5497413
  • Archival Resource Key: ark:/67531/metadc1087903

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • April 1, 1985

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

Description Last Updated

  • May 18, 2018, 12:59 p.m.

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Ottinger, C A; Mitchell, G W; Lipinski, R J & Kelly, J E. D9 experiment: heat removal from stratified UO/sub 2/ debris, report, April 1, 1985; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1087903/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.