Sensitivity study of waste rollover using probabilistic finite element analysis

Arshad Alfoqaha, William Cofer, M. A. Khaleel

Research output: Contribution to conferencePaper

Abstract

Stratification of nuclear wastes in many of the Hanford storage tanks has resulted in sludge layers which are capable of retaining gases. As the gas is produced, the mechanisms of gas storage evolve until the resulting buoyancy in the sludge leads to instability. At this point, a significant volume of gas is suddenly released. Probabilistic finite element analysis has been performed to predict the likelihood of sludge rollover over time on the basis of sludge strength. The results showed that the probability of sludge rollover increased and the reliability diminished over time. The reliability of the system was shown to be most sensitive to the supernatant density and, to a lesser degree, to the reference pressure within the tank.

Original languageEnglish
Pages914-917
Number of pages4
Publication statusPublished - 1 Jan 1996
EventProceedings of the 1996 7th Specialty Conference on Probabilistic Mechanics and Structural Reliability - Worcester, MA, USA
Duration: 7 Aug 19969 Aug 1996

Other

OtherProceedings of the 1996 7th Specialty Conference on Probabilistic Mechanics and Structural Reliability
CityWorcester, MA, USA
Period7/8/969/8/96

    Fingerprint

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Alfoqaha, A., Cofer, W., & Khaleel, M. A. (1996). Sensitivity study of waste rollover using probabilistic finite element analysis. 914-917. Paper presented at Proceedings of the 1996 7th Specialty Conference on Probabilistic Mechanics and Structural Reliability, Worcester, MA, USA, .