Cask Size and Weight Reductions Through the Use of DUO -Steel Cermet Materials 2 Dr. Les Dole, Dr. Juan Ferrada, C. H. Mattus, and Chad Hasbrouck Russian–American Workshop on Use of Depleted Uranium and Review of International Science and Technology Center (ISTC) Projects October 18–21, 2004 Moscow, Russia Oak Ridge National Laboratory P.O. Box 2008, Oak Ridge, Tennessee 37831-6166 United States of America E-mail: [email protected] Outline • Background of U.S. and DUCRETE Program • Update laboratory DUAGG exposure testing • Update preconceptual design and costing of DUCRETE cask fabrication OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Consumption in Storage/Transport Casks for projected Commercial SNF Potential Use of UO in SNF Storage for 24 PWR 2 and 61 BWR Assemblies per Storage Silo 500,000 400,000 e n n 300,000 o t , 2 200,000 O U 100,000 BWR 0 2 4 0 6 0 8 BPWWRR 20 20 200 200 2010 012 014 16 18 0 2 0 2 2 0 2 0 Year 2 Total tonnes 2 OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Yearly Rate of Spent Fuel Assemblies (no inventory included) 180 160 r 140 a e Y er 120 p s e i 100 bl PWR m e BWR s 80 s A f o 60 r e b m 40 u N 20 0 Year OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Yearly Rate of Spent Fuel Storage/Transport Casks (no inventory included) 8 7 r 6 a e y r e 5 p s PWR k s 4 a BWR c f o 3 r e b m 2 u N 1 0 Year OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Hypothetical Number of Casks for the Accumulated PWR and BWR Assemblies (including inventory) 6000 s 5000 s k s a c d 4000 e t a ul PWR m 3000 u BWR c c a f 2000 o r e b m 1000 u N 0 2 4 6 8 0 2 4 6 8 0 0 0 0 0 1 1 1 1 1 2 0 0 0 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2 2 2 Year OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Design Capacity of the Plant • Plant produces 50 storage/transport casks per year, operating in one 8-hr shift • Operates for 25 years • Casks will store the equivalent to about 25% the inventory of PWR inventory or could store the equivalent to about 45% of BWR inventory OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY DUCRETE Casks are Considerably Smaller and Lighter than Casks Constructed of Ordinary Concrete CCaasskk LLiidd AAiirr OOuuttlleett The DUCRETE cask is 35 tons lighter and 100 cm smaller in diameter than casks made from ordinary concrete. MMuullttiippuurrppoossee SSeeaalleedd BBaasskkeett ((SShheellll WWaallll)) SSNNFF FFuueell AAsssseemmbblliieess CCoonnccrreettee CCaasskk LLiinneerr CCoonnccrreettee AAiirr IInnlleett DDuucctt Comparison of conventional and DUCRETE spent-fuel dry storage casks/silos AAiirr EEnnttrraannccee OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Substitute DUCRETE in GNB CONSTOR Cask and Optimize Design • Reduce size and weight • Allow higher thermal loads • Meet technical and economic performance criteria • Comply with regulatory requirements and standards OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY