Optimization of Dissolved Hydrogen Concentration for Control of Primary Coolant Radiolysis in Pressurized Water Reactors

スポンサーリンク

概要

• 論文の詳細を見る

• Optimization of the dissolved hydrogen concentration in primary coolant of pressurized water reactors has several potential advantages in material integrity and dose reduction. To assess the threshold value of dissolved hydrogen for reducing condition, in-pile loop experiments and radiolysis model calculations were performed. Both experiments and model calculations indicate that the threshold value of dissolved hydrogen for radiolysis is much less than the present control level in pressurized water reactors, and the in-core region is more easily affected by reduced dissolved hydrogen level than the out-of-core region. The measurement of electrochemical corrosion potential of structural material, while varying dissolved hydrogen levels, is desirable in the future to compensate for the uncertainty of the model calculation. For this purpose, electrochemical corrosion potential of stainless steel at the top-of-core, in which the reference electrode could be inserted, was estimated based on the correlation between the experiments and the modeling for the loop.

• 社団法人 日本原子力学会の論文
• 2004-05-25

著者

• TAKIGUCHI Hideki

  The Japan Atomic Power Co.

• Uchida Shunsuke

  Tohoku University

• Takiguchi Hideki

  The Japan Atomic Power Company

• ULLBERG Mats

  Studsvik Nuclear AB

関連論文

• Hydrogen and Hydrazine Co-injection to Mitigate Stress Corrosion Cracking of Structural Materials in Boiling Water Reactors, (VI) The Effect of Ammonia on Intergranular Stress Corrosion Cracking
• Hydrazine and Hydrogen Co-injection to Mitigate Stress Corrosion Cracking of Structural Materials in Boiling Water Reactors (IV) : Reaction Mechanism and Plant Feasibility Analysis
• Hydrazine and Hydrogen Co-injection to Mitigate Stress Corrosion Cracking of Structural Materials in Boiling Water Reactors (V) Effects of Hydrazine and Dissolved Oxygen on Flow Accelerated Corrosion of Carbon Steel
• Hydrazine and Hydrogen Co-injection to Mitigate Stress Corrosion Cracking of Structural Materials in Boiling Water Reactors, (III) Effects of Adding Hydrazine on Zircaloy-2 Corrosion
• Hydrazine and Hydrogen Co-injection to Mitigate Stress Corrosion Cracking of Structural Materials in Boiling Water Reactors, (II) : Reactivity of Hydrazine with Oxidant in High Temperature Water under Gamma-irradiation
• Water Chemistry Data Acquisition, Processing, Evaluation and Diagnostic Systems in Light Water Reactors
• Evaluation of Effectiveness of Hydrogen Water Chemistry for Different Types of Boiling Water Reactors
• ICONE11-36144 DOSE REDUCTION MEASURES AT TSURUGA UNITS 3 AND 4
• Optimization of Dissolved Hydrogen Concentration for Control of Primary Coolant Radiolysis in Pressurized Water Reactors

スポンサーリンク