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Multiple Tier Fuel Cycle Studies for Waste Transmutation

[+] Author Affiliations
R. N. Hill, T. A. Taiwo, J. A. Stillman, D. J. Graziano

Argonne National Laboratory, Argonne, IL

D. R. Bennett, H. Trellue

Los Alamos National Laboratory, Los Alamos, NM

M. Todosow

Brookhaven National Laboratory, Upton, NY

W. G. Halsey

Lawrence Livermore Laboratory, Livermore, CA

A. Baxter

General Atomics, Los Alamos, NM

Paper No. ICONE10-22575, pp. 1003-1011; 9 pages
doi:10.1115/ICONE10-22575
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 2
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3596-0 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

As part of the U.S. Department of Energy Advanced Accelerator Applications Program, a systems study was conducted to evaluate the transmutation performance of advanced fuel cycle strategies. Three primary fuel cycle strategies were evaluated: dual-tier systems with plutonium separation, dual-tier systems without plutonium separation, and single-tier systems without plutonium separation. For each case, the system mass flow and TRU consumption were evaluated in detail. Furthermore, the loss of materials in fuel processing was tracked including the generation of new waste streams. Based on these results, the system performance was evaluated with respect to several key transmutation parameters including TRU inventory reduction, radiotoxicity, and support ratio. The importance of clean fuel processing (∼0.1% losses) and inclusion of a final tier fast spectrum system are demonstrated. With these two features, all scenarios capably reduce the TRU and plutonium waste content, significantly reducing the radiotoxicity; however, a significant infrastructure (at least 1/10 the total nuclear capacity) is required for the dedicated transmutation system.

Copyright © 2002 by ASME
Topics: Fuels , Cycles

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