５本ノズル型ジェットポンプの性能回復に関する研究
英字タイトル:
Studies on Recovering Method of 5-nozzle type Jet Pump Efficiency
著者:
熊野 秀樹 Hideki YUYA 原 哲哉 Tetsuya HARA 鈴木 純也 Junya SUZUKI 伊藤 圭介 Keisuke ITOU 鍵谷 幸生 Yukio KAGIYA 社河内 敏彦 Toshihiko SHAKOUCHI
発刊日:
公開日:
CleaningCrud depositionDiffuserEfficiencyFriction lossJet PumpNozzleThroat
Studies on Recovering Method of 5-nozzle type Jet Pump Efficiency
著者:
熊野 秀樹 Hideki YUYA 原 哲哉 Tetsuya HARA 鈴木 純也 Junya SUZUKI 伊藤 圭介 Keisuke ITOU 鍵谷 幸生 Yukio KAGIYA 社河内 敏彦 Toshihiko SHAKOUCHI
発刊日:
公開日:
カテゴリ: 第6回
キーワードタグ:CleaningCrud depositionDiffuserEfficiencyFriction lossJet PumpNozzleThroat
概要
The degradation of 1-nozzle type Jet Pump (JP) efficiency by crud deposition has been recognized in some BWRs. In order to remove crud, we must clean each o r all of JP inner surface. The increase in cleaning surface area induces the increase in outage period and cost, therefore, in the previous study we looked for the most effective cleaning portion at inner surface for efficiency recovery. In this study, for the 5-nozzle type JP, we evaluated the effect of crud portion on decrease in efficiency of 5-nozzle type JP and found that the most effective cleaning portion for this type JP was also inner surface of Throat.
