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第13回
民間規格の活用及び維持規格補修章について
著者:
菅野 眞紀,Masanori KANNO
発刊日:
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キーワードタグ:
While the Codes and Standards provided by standard developing organization, such as JSME, have been extensively used for maintenance activities with their endorsement by the Japanese regulatory authority, those Codes and Standards are not necessarily used effectively under Japanese regulatory system. This paper provides status of Japanese regulatory system on maintenance activities on Nuclear Power Plant’s facilities as well as several issues on effective application of Repair and Replacement Section o...
英字タイトル:
Effective Usage of Codes and Standards for Maintenance Activities 三菱重工業(株) 小山 幸司 Koji KOYAMA Member
第13回
浜岡 1,2 号機の廃止措置状況と研究について(その1)
著者:
酒井 章司,Shoji SAKAI,仲神 元順,Motonori NAKAGAMI,清水 義昭,Yoshiaki SHIMIZU,中田 靖広,Yasuhiro NAKADA
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公開日:
キーワードタグ:
Hamaoka NPS Unit1 and 2 have already started decommissioning in November,2009. Chubu Electric Power Company(CEPCO) has carried out of fuel, conducted a contamination survey and system decontamination as stage1(Preparation). And CEPCO submitted an application for revised decommissioning plan for stage2(Dismantling Reactor Zone Peripheral facilities) in March, 2015 and were granted in February, 2016. This report describes a decommissioning schedule and project status of Hamaoka NPS Unit1 and 2. ...
英字タイトル:
Project Status of Decommissioning and Research Hamaoka NPS Unit 1and 2
第13回
浜岡 1,2 号機の廃止措置状況と研究について(その2)
著者:
横倉 一洋,Kazuhiro YOKOKURA,熊野 秀樹,Hideki YUYA
発刊日:
公開日:
キーワードタグ:
Hamaoka Nuclear Power Station Unit 1 and 2 have already started the plant decommissioning since November, 2009. The decommissioning Stage-1 (preparation stage) had been already finished and now Stage-2 (Dismantling stage of Reactor Zone Peripheral facilities) is in progress. We have begun a research about material degradation by using some pieces of concrete and metal taken from Unit 1. This report describes the project scheme of the research. ...
英字タイトル:
Project Status of Decommissioning and Research Hamaoka NPS Unit 1 and 2 (2)
第13回
浜岡原子力発電所5号機 主復水器細管損傷の影響調査(その3)
著者:
綿貫 理研,Yoshiaki WATANUKI,今井 富康,Tomiyasu IMAI,塚田 匡,Tadashi TSUKADA,黒野 晃平,Kouhei KURONO,丹羽 勇太,Yuuta NIWA
発刊日:
公開日:
キーワードタグ:
In the process of achieving cold shutdown following the shutdown of Hamaoka Nuclear Power Station Unit 5 on May 14, 2011, large quantities of seawater flowed into the reactor and other facilities due to main condenser tubes which had broken. The investigations focusing on corrosion of materials had been conducted through various methods, observation of equipments, material tests, cleaning tests, and inspection of RPV and its components. Based on these investigations, we had evaluated the impact on the ...
英字タイトル:
Effect of sea water intrusion from main condenser, damaged by break on reactor core internals, Hamaoka Unit 5 (No.3)
第13回
浜岡原子力発電所の津波対策「防波壁」の 設計・建設工事の概要
著者:
和仁 雅明,Masaaki WANI,佐藤 芳仁,Yoshihito SATO
発刊日:
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We have been engaging tsunami countermeasures including tsunami protection wall at Hamaoka Nuclear Power Station since the Great East Japan Earthquake disaster. In the design of the wall, the innovative structure type integrated L-shaped wall sections of SRC and steel structure on RC underground wall foundations implanted into solid bedrock was developed. This structure gives an extra safety margin to seismic-resistant and tsunami-resistant design. Moreover we achieved to shorten the construction term...
英字タイトル:
Design and Construction of "Tsunami Protection Wall" at Hamaoka Nuclear Power Station
第13回
熱成層界面を有する直管およびエルボ配管における熱応力発生メカニズムに関する研究
著者:
栗林 大,Hiroshi KURIBAYASHI,久永 晃司,Koji HISANAGA,鈴木 正昭,Masaaki SUZUKI,佐藤 拓哉,Takuya SATO,笠原 直人,Naoto KASAHARA
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キーワードタグ:
In nuclear power plants, a lot of failure cases by high cycle thermal fatigue have been reported, which is induced by temperature fluctuation of the coolant. To ensure the safety of the nuclear power plants, the thermal fatigue failure should be prevented adequately. Thus The Japan Society of Mechanical Engineers (JSME) published the high cycle thermal fatigue evaluation guideline. In the guideline, it is proposed that the structural integrity can be judged by the location of thermal stratification, which...
英字タイトル:
Study on the mechanism of stress generation of straight pipe and elbow pipe which has thermal stratification
第13回
特殊環境下で使用可能な監視システム高度化開発の現状
著者:
土谷 邦彦,Kunihiko TSUCHIYA,武内 伴照,Tomoaki TAKEUCHI,駒野目 裕久,Hirohisa KOMANOME,三浦 邦明,Kuniaki MIURA,荒木 政則,Masanori ARAKI,石原 正博,Masahiro ISHIHARA
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After the accident at the Fukushima Dai-ichi (1F) Nuclear Power Plant (NPP), the Japanese Government referred to “Enhancement of instrumentation to identify the status of the reactors and PCVs”, in the report of Japanese government to the IAEA ministerial conference in June 2011. Moreover, the Nuclear and Industrial Safety Agency gave the provisions, “Ensuring reliability of instrumentation during accidents” and “Enhancement of surveillance capability of the status of the NPPs”, in March 2012. In response...
英字タイトル:
Status of R&D of High-performance Monitoring System under Sever Accident
第13回
研究開発段階発電用原子炉の特徴を考慮した 保守管理の提案 (1)基本要件
著者:
髙屋 茂,Shigeru TAKAYA,近澤 佳隆,Yoshitaka CHIKAZAWA,林田 貴一,Kiichi HAYASHIDA,田川 明広,Akihiro TAGAWA,久保 重信,Shigenobu KUBO,山下 厚,Atsushi YAMASHITA
発刊日:
公開日:
キーワードタグ:
A maintenance management suitable to nuclear power plants (NPP) at R&D stage was discussed. Objectives of maintenance management of NPP at R&D stage was first clarified. Next, applicability of codes for maintenance management of commercial NPP to NPP at R&D stage was discussed. Then, requirements and consideration for maintenance management of NPP at R&D stage was proposed. ...
英字タイトル:
Proposal of Maintenance Management of Nuclear Power Plants at R&D Stage by Taking Account of Their Features (1) Basic Requirements
第13回
研究開発段階発電用原子炉の特徴を考慮した 保守管理の提案 (2)適用事例
著者:
近澤 佳隆,Yoshitaka CHIKAZAWA,髙屋 茂,Shigeru TAKAYA,林田 貴一,Kiichi HAYASHIDA,田川 明広,Akihiro TAGAWA,久保 重信,Shigenobu KUBO,山下 厚,Atsushi YAMASHITA
発刊日:
公開日:
キーワードタグ:
A maintenance management suitable to nuclear power plants (NPP) at R&D stage was discussed. Objectives of maintenance management of NPP at R&D stage were first clarified. Next, applicability of codes for maintenance management of commercial NPP to NPP at R&D stage was discussed. Then, requirements and consideration for maintenance management of NPP at R&D stage was proposed. In this paper, requirements on maintenance program of NPP at R&D stage were clarified and an example that the proposal was applie...
英字タイトル:
Proposal of Maintenance Management of Nuclear Power Plants at R&D Stage by Taking Account of Their Features (2) case study
第13回
磁性配管減肉モニタリングのための 低周波漏洩磁束探傷法の開発
著者:
田島 直樹,Naoki TAJIMA,遊佐 訓孝,Noritaka YUSA,橋爪 秀利,Hidetoshi HASHIZUME
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キーワードタグ:
This study develops a low frequency magnetic flux leakage testing method for monitoring a wall thinning appearing on the inner surface of a magnetic pipe. We conducted the numerical simulations to evaluate how the presence of wall thinning perturbates electromagnetic fields induced by an encircling coil. The result of the simulations shows measuring the axial component of magnetic flux density enables to detect and evaluate wall thinning. ...
英字タイトル:
Development of low frequency magnetic flux leakage testing method aimed at monitoring a wall thinning appearing in a magnetic pipe
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