BWR Improved Refueling Patterns; Reduction in Gadolinia Residual; Axial-Blanket Optimization; Improved Initial-Core Design

摘要

Four of the alternatives evaluated as part of the DOE/TVA/GE Phase I Improved Uranium Utilization (IUU) Program, were: improved refueling patterns, reduction of gadolinia residual, axial blanket optimization, and improved initial core design. This report is a topical summary of the evaluations. The first three evaluations were focused on a selected operating reference reactor, the TVA Browns Ferry-3 Station. The fourth evaluation was for a BWR/6 reactor. The primary objectives of the evaluations were to determine to what extent the alternatives could be used to reduce BWR uranium and separative work requirements, to increase discharge burnup, to decrease fuel cycle cost and to improve plant capacity factors. Impact on overall reactor performance also was evaluated. (ERA citation 07:053715)