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Mixing in Large Scale Tanks: Part IV — Cleaning Nuclear Waste From Tanks

[+] Author Affiliations
Michael J. Augeri, Michael Hubbard, Jonathan L. Thomas

Westinghouse Savannah River Company, Aiken, SC

Paper No. HT-FED2004-56333, pp. 79-87; 9 pages
doi:10.1115/HT-FED2004-56333
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 4
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4693-8 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

The prototypical Advanced Design Mixer Pump (ADMP) was installed in the center of a nuclear waste tank to suspend settled solids, allowing removal of the solids from the tank with a separate transfer pump. Traditional waste removal methods use multiple (up to four) long shaft vertical pumps for suspending the waste solids. A combination of Computational Fluid Dynamic (CFD) modeling, scale modeling, and equipment testing was used to predict the capability of a single mixer pump to suspend radioactive waste solids in liquid using a forty mile per hour discharge jet velocity. Modeling and testing predicted the cleaning effectiveness of the mixer pump to ensure that the majority of waste solids throughout the tank would be suspended for removal to the extent technically and economically practical. In spite of unexpected field conditions and pump phenomena that hindered performance, observation showed that the pump performed as predicted by the modeling and testing.

Copyright © 2004 by ASME

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