Simulation On Separation Ration Model Of Main Components In PUREX Process And Bench Test

The reprocessing of spent fuel always plays an important role in the nuclear fuel cycle industry.PUREX process,which have come into service since 1950 s,is the most popular process in the world.From then on,the research and development of PUREX has become a continuous hotspot.With the development of computer modeling technology,the simulation on PUREX exerts a tremendous influence on the reprocessing of spent nuclear fuel.Thanks to a set of simulation software with high precision and reliability,researchers could design and develop the PUREX process more efficient,safety and with a low cost.The study aims at building the models of distribution ratio on Uranium,Plutonium,Zirconium,Ruthenium,Nitrite Acid and Nitrous Acid based on extensive literature research on computer modeling of PUREX process.A model of extraction process,where the Stage Efficiency has been taken into account,has been built during the study,and Fixed Point Iteration has been used during the calculation.In order to ensure the maintainability and the further researches,the software is programed on a modularized way.At the end of the study,the software has been tested by comparing with some Bench Test data.It has been proved that the model is accurate and credible enough.