Development of Leak Detection System Using High Temperature-Resistant Microphones.

• MORISHITA Yoshitsugu

  Power Reactor and Nuclear Fuel Development Corp.

• MOCHIZUKI Hiroyasu

  Power Reactor and Nuclear Fuel Development Corp.

• WATANABE Kenshiu

  Power Reactor and Nuclear Fuel Development Corp.

• NAKAMURA Takahisa

  Power Reactor and Nuclear Fuel Development Corp.

• NAKAZIMA Yoshiaki

  Power Reactor and Nuclear Fuel Development Corp.

• YAMAUCHI Tatsuya

  Power Reactor and Nuclear Fuel Development Corp.

抄録

This report describes the development and testing of a coolant leak detection system for an inlet feeder pipe of an advanced thermal reactor (ATR) using high temperature-resistant microphones. Such microphones must be resistant to both high temperatures and high radia- tion doses. Leakage sound characteristics, attenuation of the sound level in a heat insulating box for the inlet feeder pipes, and background noise were investigated using the experimental facility and the prototype ATR'FUGEN'. The optimum frequency ranges for the microphone were then determined based on the observed leakage sound and background noise. The ability of the microphone to discriminate between leaks and other burst-type noises was also investi- gated by statistical analyses. Finally, it was confirmed that the present method could detect a leak within a couple of seconds.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌）

  Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌） 32 (3), 237-244, 1995

  一般社団法人 日本原子力学会

キーワード

• leak detection system
• microphone
• high temperature resistance
• radiation resistance
• coolant leak
• leakage sound
• sound propagation attenuation
• background noise
• heat insulating box
• ATR reactor

詳細情報

• CRID: 1390001204096092032
• NII論文ID: 10002072259
• NII書誌ID: AA00703720
• DOI: 10.3327/jnst.32.237
• COI: 1:CAS:528:DyaK2MXksFymu74%3D
• ISSN: 18811248
• ISSN: 00223131
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可