第5回
伝熱管内壁検査補修技術開発の概要
著者:
西村 昭彦,Akihiko NISHIMURA,岡 潔,Kiyoshi OKA,山口 智彦,Toshihiko YAMAGUCHI,山下 卓哉,Takuya YAMASHITA,田川 明広,Akihiro TAGAWA,ミハラケ オビデウ,Ovidiu MIHALACHE,島田 幸洋,Ukihiro SHIMADA
発刊日:
公開日:
キーワードタグ:
A hybrid optical fiber scope and a laser processing head were combined with an eddy current testing un it for the inspection and repairing for Fast Breeder Reactor's heat exchanger pipes. The project propo ses an effective cost reduction method for maintenance of FBR by extension of the heat exchanger's lif etime. By the end of March 2010, a prototype probing system for heat exchanger pipes will be completed....
英字タイトル:
Development of Inspection and Repairing Technology for FBR Heat Exchanger Pipes
第6回
伝熱管内壁検査補修技術開発(その2)ソフトウエア開発と性能試験準備
著者:
西村 昭彦,Akihiko NISHIMURA,岡 潔,Kiyoshi OKA,山口 智彦,Toshihiko YAMAGUCHI,赤津 朋宏,Tomohiro AKATSU,関 健史,Takeshi SEKI,ミハラケ オビデウ,Ovidiu MIHALACHE,島田 幸洋,Yukihiro SHIMADA,田川 明広,Akihiro TAGAWA,山下 卓哉,Takuya YAMASHITA
発刊日:
公開日:
キーワードタグ:
In order to maintain FBR heat exchanger tubes, a new probe system was designed. A coupling u nit and operational software are key components in the second year. The coupling unit to com bine a high energy laser beam and optical fiberscope images was developed. The operational s oftware successfully controlled an eddy current testing device and a laser processing head....
英字タイトル:
Development of Inspection and Repairing Technology for FBR Heat Exchanger tubes (II)Preparation of Operation Software and Performance Check
第2回
炉内構造物への予防保全技術の適用状況
著者:
磯貝 智彦,Tomohiko ISOGAI,岡村 祐一,Yuichi OKAMURA,島 晃洋,Akihiro SHIMA
発刊日:
公開日:
キーワードタグ:
Recent years, Stress Corrosion Crackings (SCCs) are confirmed at the CRD stub tube and the RPV nozzle-welding join t in Japanese BWR plants. Several techniques to reduce the welding residual stress, which is considered to be a co mponent of SCC factor, such as a Peening are developed and applied to belt line of Core Shroud. At this article, t he overview of application results of Laser Peening (LP) and Water Jet Peening (WJP) to TEPCO's BWRs is discussed....
英字タイトル:
Application status of the preventive technology for RPV Internals in BWRs
第5回
炉内構造物等点検評価ガイドラインの適用実績について
著者:
末園 暢一,Nobuichi SUEZONO,島 晃洋,Akihiro SHIMA,伊東 敬,Takashi ITO
発刊日:
公開日:
キーワードタグ:
This paper introduces the applied experience of Inspection and Evaluation Guideline for Japanese BWR plants' core shroud. This report includes the compari son of evaluation performed by using Guideline's method and actual inspection results for several plants. Evaluation was performed at the time when SCC wa s found. After one cycle operation, actual inspections were done to confirm the amount of existing crack growth. It was confirmed that actual crack growth is less than predicted value by the evaluation...
英字タイトル:
Applied experience of Inspection and Evaluation Guideline to actual BWR internals
第10回
高速増殖炉SG伝熱細管のLDIによる急速減肉に関する研究
著者:
加藤 慶輔,Keisuke KATO,奈良林 直,Tadashi NARABAYASHI,辻 雅司,Masashi TSUJI,千葉 豪,Go CHIBA,大島 宏之,Hiroyuki OHSHIMA,栗原 成計,Akikazu KURIHARA,内堀 昭寛,Akihiro UCHIBORI
発刊日:
公開日:
キーワードタグ:
Wastage phenomena occur when a heat transfer tube is failed in a Steam Generator (SG) of Fast Breeder Reactor (FBR) and its mechanism is still unexplained. We focused on Liquid Droplet Impingement Erosion (LDIE) as a factor of the wastage phenomena and performed a basic study with a partial mock-up water test simulating a piping group in SG for quantitative evaluation of LDIE. First, we did visualization tests of high pressure and high speed jet into water. The test section consists of a failure heat ...
英字タイトル:
Study on Rapid Wastage due to Liquid Droplet Impingement on Heat Transfer Tube in SG of Fast Breeder Reactor