136件が見つかりました。

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第15回
3Dアズビルドレーザ計測を利用したライニング配管の製作・据付精度向上
著者:
川村 国治,井上 勝,川端 カイオ,（三菱重工）
発刊日:
公開日:
キーワードタグ:
Due to the high degree of required dimensional accuracy in its manufacturing, repairing of lining pipes with flanges requires a long installation period. With the conventional method, we have to wait more than three weeks to start lining installation after the start of onsite construction, because pipe dimensions are determined onsite then lining installation is conducted at shop. It causes prolongation of the onsite installation period. Therefore, we have tried to improve the dimensional accuracy in its ma...
英字タイトル:
Improvement in Manufacturing and Installation Accuracy of Lining Piping by Application of 3D As-built Laser Measurement
第15回
AEセンサを用いた埋込金物検査　その１　モックアップ試験
著者:
三浦 進,関口 昭司,服部 功三,（日本原燃）,小川 良太,藤吉 宏彰,礒部 仁博,（原燃工）
発刊日:
公開日:
キーワードタグ:
Non-destructive testing technique was developed for embedded hardware using acoustic emission sensors. In this technique, AE sensor records the acoustic vibration generated by striking the embedded hardware with a hammer. The fixed state of the embedded hardware is judged from the vibration time of the embedded hardware recorded by the AE sensor and the frequency distribution of the acoustic signal. Mockup tests and FEM analysis were carried out in order to verify the effectiveness of the technique....
英字タイトル:
Embedded hardware inspection using AE sensor Part1 Mockup tests
第15回
AEセンサを用いた埋込金物検査　その２　現場検査
著者:
三浦 進,関口 昭司,服部 功三,（日本原燃）,小川 良太,匂坂 充行,礒部 仁博,（原燃工）
発刊日:
公開日:
キーワードタグ:
Non-destructive testing technique was developed for embedded hardware using acoustic emission sensors. In this technique, the fixed state of the embedded hardware can be judged from the vibration time and the frequency distribution of the acoustic signal. In this report, we introduce inspection method and analysis method at site and the application result of JNFL by nondestructive inspection technology of embedded hardware using AE sensor....
英字タイトル:
Embedded hardware inspection using AE sensor Part2 Site inspection
第15回
AgXの外気温度域におけるヨウ化メチル吸着性能と応用
著者:
石川 慶浩,小林 稔季,王 吉豊,宇津山 雄一郎,遠藤 好司,（ラサ工業）
発刊日:
公開日:
キーワードタグ:
The nonflammable adsorbent AgX shows excellent adsorption characteristics of methyl iodide under harsh gas conditions like venting gas released from a nuclear power plant. Furthermore, it also exhibited good adsorption performances even in the temperature range of room temperature to 40 degrees below zero Celsius....
英字タイトル:
Methyl iodine adsorption characteristics and applications of AgX in the outside air temperature range
第15回
AR技術を活用した保全業務支援ツールの開発
著者:
大島 朋美,尾崎 健司,柏瀬 翔一,西 優弥,（東芝ESS）
発刊日:
公開日:
キーワードタグ:
New inspection system is supposed to be introduced in nuclear power plants in Japan. In the corrective action program (CAP) based on quality management system, sharing of nonconformity information, management of corrective and preventative action are required. For management of the corrective action, relevant data have to be correctly and efficiently recorded and managed. In order to address the new system, we developed a maintenance support tool using augmented reality (AR) technology. This tool helps user...
英字タイトル:
Development of a Maintenance Supporting Tool Using Augmented Reality Technology
第15回
Evaluation of general applicability of microwave NDT to pipes with a bend focusing on mode conversion
著者:
陳 冠任,片桐 拓也,遊佐 訓孝,橋爪 秀利,（東北大）
発刊日:
公開日:
キーワードタグ:
This study evaluates the key factors impacting on multi-mode conversion of microwave when applying microwave NDT to bent pipe inspection. Mathematical derivation demonstrates the dependence of multi- mode conversion due to a bend on three factors: the ratio of bending radius to pipe’s diameter, the bend angle and the frequency normalized with the cut-off frequency of an arbitrary mode. To verify the deducting results, numerical simulations were conducted to evaluate multi-mode conversion of bent pipe adopti...
英字タイトル:
Evaluation of general applicability of microwave NDT to pipes with a bend focusing on mode conversion
第15回
Good PRAへ向けたNRRCの取り組み
著者:
西 義久,（電中研）
発刊日:
公開日:
キーワードタグ:
NRRC (Nuclear Risk Research Center) is focusing on support of voluntary safety improvement activities of electric utilities. In this paper, several approaches to implement good PRA are described....
英字タイトル:
Approach of NRRC for implementation of Good PRA
第15回
i-Construction 新技術現場試行：　AEセンサを用いた打音検査によるコンクリート施工品質評価
著者:
礒部 仁博,松永 嵩,匂坂 充行,小川 良太,藤吉 宏彰,下田 彩子,（原燃工）
発刊日:
公開日:
キーワードタグ:
On-site trial of a new technology of i-Construction was successfully carried out for the quality control of concrete construction through hammering inspection using AE sensor. In addition, some mockup tests showed that the inspection has a potential to identify several defects and compressive strength of concrete....
英字タイトル:
On-site trial of a new technology of i-Construction: Quality control of concrete construction through hammering inspection using AE sensor
第15回
ICT技術を適用した可搬型設備運用支援システムの開発
著者:
北村 信吾,金丸 剛之,（三菱電機）
発刊日:
公開日:
キーワードタグ:
With the introduction of new regulatory requirements, mobile equipment such as power supply cars and transportable pumps used in emergency of power plants is increasing. As the result, it would be an urgent issue to enhance the organization and procedure manuals to cope with increasingly complex plant operation and equipment configuration, also to visualize the situation under limited infrastructure environment in the event of accident. In this article, we introduce the development of an operation support s...
英字タイトル:
Development of operation support system for the mobile equipment applying ICT technology
第15回
JRR-4の廃止措置計画の概要及び実施状況について
著者:
石黒 裕大,根本 勉,山田 佑典,大山 光樹,（JAEA）
発刊日:
公開日:
キーワードタグ:
After operating until December 2010, JRR-4 was under periodical self-inspection for the next operation. After that, it suffered from the Great East Japan Earthquake on March 11, 2011. But it recovered almost a year later. However, we determined to decommission JRR-4 in September 2013. After that, we received the approval of the decommissioning plan of JRR-4 on June 7, 2017. And we received the approval of the change of the safety regulations related to it. Subsequently JRR-4 was shifted to decommission phas...
英字タイトル:
Outline and implementation status of decommissioning plan of JRR-4
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