Measurement of impurity concentration in sodium by automatic plugging indicator.

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概要

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• In order to improve the reliability of operation and to confirm how the operating conditions, especially the sodium flow rate, affect the measuring accuracy, an automatic plugging indicator was designed and tested. This indicator has specially shaped orifices by which the perfect choking of impurity is prevented from the orifice passage.<BR>By the experiment on its characteristics, the followings have been confirmed.<BR>(1) A stable automatic operation is obtained successfully by the plugging characteristic of the orifices.<BR>(2) The optimum operating region of the sodium flow rate to improve the measuring accuracy is obtained.

• 一般社団法人 日本原子力学会の論文

著者

• YAMAMOTO Hajime

  Atomic Energy Research Laboratory, Hitachi Ltd.

• MURASE Michio

  Atomic Energy Research Laboratory, Hitachi Ltd.

• SHIMOYASHIKI Shigehiro

  Hitachi Research Laboratory, Hitachi Ltd.

• KOTANI Koichi

  Atomic Energy Research Laboratory, Hitachi Ltd.

• SUMIDA Isao

  Atomic Energy Research Laboratory, Hitachi Ltd.

関連論文

• Two-phase flow instability caused by density head pressure drop.
• Investigation of measuring accuracy of plugging indicators.
• Measurement of impurity concentration in sodium by automatic plugging indicator.
• Fundamental experiment of potassium heat exchanger using principle of heat pipe.

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