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FY 2007 LDRD Director's R&D Progress SummaryProposal Title: Developing a Science Base for Fuel Reprocessing Separations in the Global Nuclear Energy Program

Description: This work is aimed at developing an experimentally validated computational capability for understanding the complex processes governing the performance of solvent extraction devices used for separations in nuclear fuel reprocessing. These applications pose a grand challenge due to the combination of complicating factors in a three-dimensional, turbulent, reactive, multicomponent, multiphase/interface fluid flow system. The currently limited process simulation and scale-up capabilities provides uncertainty in the ability to select and design the separations technology for the demonstration plan of the Global Nuclear Energy Partnership (GNEP) program. We anticipate the development of science-based models for technology development and design. This project will position ORNL to address the emerging opportunity by creating an expandable process model validated experimentally. This project has three major thrusts, namely, a prototype experimental station, a continuum modeling and simulation effort, and molecular modeling and kinetics support. Excellent progress has been made in corresponding activities in this first year in: (1) defining, assembling, and operating a relevant prototype system for model validation; (2) establishing a mathematical model for fluid flow and transport; (3) deploying sub-scale molecular modeling.
Date: January 1, 2011
Creator: de Almeida, Valmor F; Tsouris, Costas; Birdwell Jr, Joseph F; D'Azevedo, Ed F; Jubin, Robert Thomas; DePaoli, David W et al.
Partner: UNT Libraries Government Documents Department

Multilateral Development Banks: U.S. Contributions FY2000-FY2011

Description: This report shows in tabular form how much the Administration has requested and how much Congress has appropriated for U.S. payments to the multilateral development banks (MDBs) since 2000. It also provides a brief description of the MDBs and the ways they fund their operations.
Date: January 24, 2011
Creator: Sanford, Jonathan E.
Partner: UNT Libraries Government Documents Department

Multilateral Development Banks: U.S. Contributions FY2000-FY2011

Description: This report shows in tabular form how much the Administration has requested and how much Congress has appropriated for U.S. payments to the multilateral development banks (MDBs) since 2000. It also provides a brief description of the MDBs and the ways they fund their operations.
Date: March 11, 2011
Creator: Nelson, Rebecca M.
Partner: UNT Libraries Government Documents Department

Multilateral Development Banks: U.S. Contributions FY2000-FY2011

Description: This report shows in tabular form how much the Administration has requested and how much Congress has appropriated for U.S. payments to the multilateral development banks (MDBs) since 2000. It also provides a brief description of the MDBs and the ways they fund their operations. It will be updated periodically as annual appropriation figures are known.
Date: March 11, 2011
Creator: Nelson, Rebecca M.
Partner: UNT Libraries Government Documents Department