Affiliation:
1. Indira Gandhi Centre for Atomic Research Kalpakkam Tamilnadu 603102 India
2. Training school complex, Homi Bhabha National Institute Anushakthinagar, Mumbai 400094 India
Abstract
AbstractMetallic alloy fuels from fast reactors will be reprocessed by a non‐aqueous electrochemical technique known as electrorefining. Electrorefining of spent metal fuel results in the accumulation of heat‐generating fission products, especially 137Cs in the eutectic salt. These fission products need to be removed from the salt so as to reduce the decay heat load and contamination. The melt crystallization technique is a simple separation process being pursued for the separation of fission products. This is a single‐step process that utilizes the difference in solubility of fission products in the solid and liquid phase. This process is also less energy intensive. Crystallization involves the purification of a substance from a liquid mixture by solidification of the desired component. Since separation is based on selective solidification, which involves phase change, it is essential to evaluate the transient solidification pattern, liquid fraction distribution, solute distribution, and separation time and efficiency. Numerical modeling of the separation of CsCl from a LiCl‐KCl eutectic mixture has been carried out using Ansys Fluent (19.2). The effect of crystallizer geometry and cooling rates on the separation of CsCl has been numerically simulated.
Reference22 articles.
1. Development of Pyrochemical Reprocessing for Spent Metal Fuels
2. L. S.Chow J. K.Basco J. P.Ackerman T. R.Johnson Proc. of GLOBAL '93 Seattle Washington November1993.
3. M. F.Simpson INL/EXT‐12‐25124 2012. DOI:https://doi.org/10.2172/1044209.
4. C.Periera B. D.Babcock Fission Product Removal from Molten Salt Using Zeolite 2nd Int. Symp. on Extraction and Processing for the Treatment and Minimization of Wastes Arizona October1996.
5. Carbonate Reaction of Alkaline-Earth Element by Carbonate Agent Injection Method