Coupling a transient solvent extraction module with the separations and safeguards performance model.

DePaoli, David W. (Oak Ridge National Laboratory, Oak Ridge, TN) ; Birdwell, Joseph F. (Oak Ridge National Laboratory, Oak Ridge, TN) ; Gauld, Ian C. (Oak Ridge National Laboratory, Oak Ridge, TN) ; Cipiti, Benjamin B. ; de Almeida, Valmor F. (Oak Ridge Natio

关键词: DESIGN;    EVALUATION;    FUNCTIONALS;    MONITORING;    ORNL;    PERFORMANCE;    PUREX PROCESS;    RECOMMENDATIONS;    SAFEGUARDS;    SIMULATION;    SOLUTES;    SOLVENT EXTRACTION;    SWITCHES;    TRANSIENTS;   

DOI  :  10.2172/1028946
RP-ID  :  SAND2009-6307
PID  :  OSTI ID: 1028946
Others  :  TRN: US1200011

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

A number of codes have been developed in the past for safeguards analysis, but many are dated, and no single code is able to cover all aspects of materials accountancy, process monitoring, and diversion scenario analysis. The purpose of this work was to integrate a transient solvent extraction simulation module developed at Oak Ridge National Laboratory, with the Separations and Safeguards Performance Model (SSPM), developed at Sandia National Laboratory, as a first step toward creating a more versatile design and evaluation tool. The SSPM was designed for materials accountancy and process monitoring analyses, but previous versions of the code have included limited detail on the chemical processes, including chemical separations. The transient solvent extraction model is based on the ORNL SEPHIS code approach to consider solute build up in a bank of contactors in the PUREX process. Combined, these capabilities yield a more robust transient separations and safeguards model for evaluating safeguards system design. This coupling and initial results are presented. In addition, some observations toward further enhancement of separations and safeguards modeling based on this effort are provided, including: items to be addressed in integrating legacy codes, additional improvements needed for a fully functional solvent extraction module, and recommendations for future integration of other chemical process modules.