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第17回
関西電力グループ「ゼロカーボンビジョン2050」について
著者:
片岡 秀哉,前原 啓吾,山下裕太,（関西電力）
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The Kansai Electric Power Group declared “Zero Carbon Vision 2050” on February 26, 2021 to achieve a zero-carbon society in 2050 and would be committed to implementing the following three approaches. (i) We will provide our society with the best available solution toward zero-carbon emissions on the demand side along with supporting its implementation across all sectors. (ii) With priority given to safety, our group will seek to achieve the best energy mix which can lead to full decarbonization ensure secur...
英字タイトル:
“Zero Carbon Vision 2050” of the Kansai Electric Power Group
第17回
電動弁診断の事例蓄積について
著者:
植田 勝彦,神保 吉秀,中村 尚希,瀬戸脇 浩友,市川 義浩,（中部プラントサービス）
発刊日:
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電動弁診断において弁の動作状況を表すグラフの波形を観察すると点検における着目点、劣化を監視する 必要のある個所などの情報を得ることができる。浜岡原子力発電所で経験した事例を紹介する。...
第17回
電磁パルス音響法を用いた鉄筋コンクリートにおける鉄筋腐食の評価
著者:
周 新武, 武田 翔, 内一 哲哉, 橋本 光男, 髙木 敏行,（東北大）
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This paper proposed the evaluation of rebar corrosion in reinforced concrete by an electromagnetic pulse-induced acoustic testing method. A strong pulsed electromagnetic force is applied to the specimen, and the rebars will generate the elastic waves. The difference in the bonding force between the rebars and concrete depending on rust is evaluated based on the intensity and waveform variation of elastic waves. In this study, the rusted and un- rusted rebar specimens are prepared, and the AE sensor is place...
英字タイトル:
Evaluation of Rebar Corrosion in Reinforced Concrete using Electromagnetic Pulse-induced Acoustic Testing Method
第17回
電磁誘導法による肉厚測定技術の開発　-加熱ジャケット付き 容器への適用-
著者:
東野 勝之,下川原 茂,小泉 英明,石尾 貴宏,（日本原燃）,李 典燦,大澤 栄之,高野 健太,（日立GE）,竹田 智,（大日機械工業）
発刊日:
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It is necessary to conduct development to measure the thickness of the inner wall for each vessel from the outer wall, because there are double-walled vessel with a heating jacket in reprocessing plant Therefore, we have developed sensors based on electromagnetic induction test (EMIT). In this paper, we report on the development results of the device for transporting the sensors....
英字タイトル:
Development of Measuring Techniques of Thick Wall Samples by Electro-Magnetic Induction - An Application for Vessels with Heating Jacket-
第17回
革新炉の統合的な設計評価と最適化に資する ナレッジマネジメントシステムの開発
著者:
近藤 佑樹,橋立 竜太,浜瀬 枝里菜,江連 俊樹,光元 里香,矢田 浩基,江沼 康弘,（JAEA）
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JAEA has started the development of Advanced Reactor Knowledge-and AI-aided Design Integration Approach through the whole plant lifecycle (ARKADIA) that performs integrated design evaluation and optimization from various viewpoints such as safety, economy, and maintainability using risk information, in order to dramatically improve the development efficiency of innovative reactors. In this paper, we report the concept of a knowledge management system to support integrated design evaluation and optimization,...
英字タイトル:
Development of knowledge management system contributing to integrated design evaluation and optimization of innovative reactors
第17回
高エネルギー放射光によるオーステナイト系ステンレス鋼の応力測定
著者:
鈴木 賢治,（新潟大）,城 鮎美,（量研機構）,菖蒲 敬久,（JAEA）,豊川 秀訓, 佐治 超爾,（JASRI）
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In this study, stress measurements were performed using a double exposure method with hard synchrotron monochromatic X-rays, and its validity was proved. The diffractions of the shrink-?tted ring of austenitic stainless steel SUS304 were measured by the CdTe pixel detector. The used X-rays were 70, 80 and 90 keV. The measured stress distributions with the 311 diffraction of γ-Fe corresponded to the predicted result. In addition, The stress distribution of the shrink-?tted ring was measured by the CCD camera...
英字タイトル:
Stress Measurements of Austenitic Stainless Steel using Hard Synchrotron X-Rays
第17回
高レベル放射性物質研究施設における耐放射線性直管型ＬＥＤ照明の開発
著者:
船越 智雅,柴田 淳広,北脇 慎一,（JAEA）,矢島 裕史,正岡 秀樹,（四国計測工業）,江夏 昌志,（ビームオペレーション）
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In Japan Atomic Energy Agency (JAEA), an advanced fuel reprocessing for fast reactor fuel cycle are carried out in hot cells in the Chemical Processing Facility (CPF). Since hot cell is high radiation and nitric acid atmosphere, the mercury lamps with excellent radiation resistance have been used. The manufacture and import of mercury lamps will be banned in 2021; therefore, we started the development of alternative lighting. LED lamps are superior in lighting speed and power consumption compared to mercury...
英字タイトル:
Development of radiation-resistant straight tube LED lighting at Chemical Processing Facility
第17回
高周波超音波を用いたW-Cu固相接合界面検査技術の検討
著者:
遊佐 訓孝,（東北大院）,古川 敬,（発電技検）,増崎 貴,（核融合研）
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This study evaluated the applicability of high-frequency ultrasonic testing to the inspection of W-Cu bonded interface aiming at the development of a non-destructive testing technique for the inspection of the cooling channel of the divertor of a fusion reactor. Tungsten blocks measuring approximately 30×30×13 mm were bonded with oxygen-free copper blocks using a high temperature vacuum furnace with uniaxial pressure and the thickness of the oxygen-free copper blocks was reduced to 2.5 mm. Artificial groove...
英字タイトル:
Nondestructive inspection of W-Cu bonded interface using high frequency ultrasound
第17回
高強度・軽量なアラミド繊維を用いた竜巻飛来物防護ネットの開発
著者:
相澤 康介,石丸 卓,前田 茂貴,（JAEA）,岡田 泰一,松井 宏之,（東レ・デュポン）,熊谷 幸博,井坂 慎吾,（前田工繊）
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The protective nets against the tornado missile are important for power plant equipment. Japan Atomic Energy Agency has developed the protective net using aramid fiber rope to aim high strength lightweight net. The net element tests and analyses were conducted to clarify the characteristic of the protective net using aramid fiber rope. The actual size net was designed based on the results of net element tests and analyses. The dynamic analysis which simulates a car crash on the designed actual size net was ...
英字タイトル:
Development of protective net using high strength lightweight aramid for tornado missile
第17回
高浜４号機　蒸気発生器伝熱管損傷事象における プラント長期停止の影響について
著者:
日下 浩作,丹羽 悠介,（関西電力）
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The cause of the steam generator tubing failure that was identified during the 23rd plant outage at Takahama Unit 4 was presumed to be caused by wear of the tubing due to repeated contact with exfoliated dense scale, which was formed on the tubing surface. It is suspected that the scale exfoliated because the scale could not follow the heat expansion and shrinking of the tubing applied during plant startup and shutdown operations, and then partial cracking occurred, resulting in exfoliation of partial scale...
英字タイトル:
Affection of Long-Term Plant Outage on Steam Generator Tube Failure Identified at Takahama Unit 4
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