METHOD FOR PLANNING LIGHT-WATER REACTOR OPERATION, METHOD FOR EFFECTIVE USE OF LIGHT-WATER REACTOR FUEL, LIGHT-WATER REACTOR FUEL AGGREGATE, AND LIGHT-WATER REACTOR CORE

To achieve a plurality of recycles of taken-out fuel by improving quality of plutonium left in the taken-out fuel.SOLUTION: A light-water reactor operation method according to the embodiment comprises: a cycle number setting step S11 of setting the number of combustion cycles of a light-water reacto...

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Main Authors SUGITA TSUKASA, WADA REIJI, SAKURAI SHUNGO, YOSHIOKA KENICHI, AIZAWA TOSHIE, HIRAIWA KOJI, KIMURA REI
Format Patent
LanguageEnglish
Japanese
Published 01.08.2019
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Summary:To achieve a plurality of recycles of taken-out fuel by improving quality of plutonium left in the taken-out fuel.SOLUTION: A light-water reactor operation method according to the embodiment comprises: a cycle number setting step S11 of setting the number of combustion cycles of a light-water reactor fuel aggregate in a light-water reactor core; a setting step S12 of setting respective initial value of density of fissile nuclide and density of combustible poison in nuclear fuel material in the light-water reactor fuel aggregate; a combustion calculation step S13 of performing combustion calculation of the light-water reactor fuel aggregate in a light-water reactor core under a condition set in the setting step S12; and a determination step S14 of determining whether or not, the density of the fissile nuclide in the nuclear fuel material at the combustion cycle finish of the cycle number is equal to or more than the initial value, and if the condition is not satisfied, repeating the setting step S12 and following steps.SELECTED DRAWING: Figure 5 【課題】取り出し燃料中に残存するプルトニウムの質を高め複数のリサイクルを可能とする。【解決手段】実施形態によれば、軽水炉の運転方法は、軽水炉燃料集合体の軽水炉炉心における燃焼サイクルのサイクル回数を設定するサイクル回数設定ステップS11と、軽水炉燃料集合体中の核燃料物質中の核分裂性核種の濃度および可燃性毒物の濃度のそれぞれの初期の値を設定する設定ステップS12と、設定ステップS12で設定した条件のもとに軽水炉炉心における軽水炉燃料集合体の燃焼計算を行う燃焼計算ステップS13と、サイクル回数の燃焼サイクル終了時の核燃料物質中の核分裂性核種の濃度が初期の値以上であるとの条件を満たすか否かを判定し、条件が満たされないと判定された場合は、設定ステップS12以下を繰り返す判定ステップS14と、を有する。【選択図】図5
Bibliography:Application Number: JP20180009658