DESIGNING OPTIMIZED SHUFFLES WITH SOSA

摘要

SOSA is NRG's software package for design and optimization of fuel shuffles. SOSA is focused on shortening the reload time of the reactor core. By reducing the movements of the refueling machine to a minimum, the reload time can be shortened by as much as 6-8 hours. This paper describes a few of the code's features, such as the way to divide a shuffle into segments or phases, the approach to guarantee sufficient SDM, possibilities for spent fuel pool optimization and SOSA's capability for generating move sheets. Finally, a couple of recently obtained results for different nuclear power plants are summarized.