Planning Tools Supporting High Level Waste Processing at the Savannah River Site

摘要

Abstract: The Savannah River Site (SRS) High Level Waste (HLW) complex consists of several large facilities producing various final waste forms, plus other front-end and interface processes linking the facilities. The entire complex will need to operate for several decades. Over this long time span, our intent is to operate the complex in a manner which minimizes and prevents pollution of the environment, and simultaneously incurs the lowest life cycle costs to the taxpayer. The complexity of such a planning task has led us to the development of two computational tools to guide the planner. The first is a novel and fast running Production Planning Model (ProdMod) which will be the routine planning analysis tool. ProdMod is a pseudo-dynamic simulation model which, for computational speed, is cast in the form of algebraic equations. The initial version of ProdMod has been used to support HLW System Plan analyses for 30-70 year scenarios. The second tool (the Integrated Flowsheet Model) is a much more detailed, truly dynamic simulation model of the entire HLW complex which will serve to validate the much- simplified process models in ProdMod: it will provide confirmation of short-term predictions by ProdMod. We are in the process of taking advantage of ProdMod's linear equation form to create automatic optimization algorithms which will greatly reduce the planner's need for trial- and-error solutions.