PWRのLi濃度制御方式に関する研究 : 一次冷却系のLi濃度制御

概要

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The primary coolant in a PWR Plant contains boric acid to control the excess reactivity and Lithium-7 to reduce the induced reactivity of corrosion products. Li-7 which is produced by B-10(η, α) Li-7 reaction is necessary to be removed by cation demineralizer in order to avoid the accumulation of it. Recently, to reduce the solubility of corrosion products and the radiation level from radioactive corrosion products, it is recommended that the concentrations of boron and Li-7 in reactor coolant are controlled within the appropriate ranges. In this paper, the simulation analysis to determine Li-7, B and Cs-137 concentrations and the operation procedure to control Li-7 and B concentrations are studied, and an optimum operation procedure is proposed.
一般社団法人日本機械学会の論文
1989-03-25