38件が見つかりました。

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第8回
2.4GHz 帯 ZigBee 電波と LAN による原子力発電所でのデータ伝送
著者:
辻 建二,Kenji TSUJI,増田 亮太,Ryota MASUDA,福井 琢也,Takuya HUKUI
発刊日:
公開日:
キーワードタグ:
Additional monitoring is occasionally done on suspicious equipment such as pumps, motors, valves and so on, when monitoring parameters are different from normal operation in Nuclear Power Plant If the suspicio us equipment is located in high radiation area, it is hard to arrange for the additional monitoring So, wireless data transmission system is desired And maintenance persons desire to watch the additional moni toring data in their office on P C We can enable to transfer the desired live data from ...
英字タイトル:
DATA transmission by 2.4GHz radio frequency and LANfrom Nuclear Power Plant to office
第8回
2次元検出器による内部ひずみ評価法の研究
著者:
鈴木 賢治,Kenji SUZUKI,菖蒲 敬久,Takahisa SHOBU,城 帖美,Ayumi SHIRO,豊川 秀訓,Hidenori TOYOKAWA
発刊日:
公開日:
キーワードタグ:
An area detector technique has to be applied to the strain scanning method for the coarse grains. A new rotating slit system was designed for a 2-dimensional (2D) detector strain scanning method. The rotating slit system focuses the 2D detector on the center of the goniometer, an d the gauge volume is made by the rotating slit system. The stress measurements were examined by the rotating slit and 2D detector. The measured diffraction spots shifted for the 2D strain scanning. The magnitude of the shift of t...
英字タイトル:
Study on Evaluation of Internal Stresses using Area Detector
第8回
4次元(リアルタイム3次元)超音波探傷技術
著者:
北澤 総,So KITAZAWA,河野 尚幸,Naoyuki KONO,馬場 淳史,Atsushi BABA,安達 裕二,Yuji ADACHI,小田倉 満,Mitsuru ODAKURA
発刊日:
公開日:
キーワードタグ:
The four-dimensional (realtime three-dimensional) phased array ultrasonic testing system has been developed. The system enables realtime ultrasonic inspections using three-dimensional (3D) images as opposed to two-dimensional images obtained by the conventional phased array methods. In the system, objects are scanned volumetrica lly with focused beams generated by a matrix array probe and the results are displayed as 3D images in realtime through the conversion from measured data into voxel data using par...
英字タイトル:
Four-Dimensional (Realtime Three-Dimensional) Phased Array Ultrasonic Testing
第8回
HCU 弁操作用工具の改良
著者:
杉浦 典幸,Noriyuki SUGIURA,辻 建二,Kenji TSUJI,松下 博文,Hirohumi MATSUSHITA,山内 博,Hiroshi YAMAUCHI
発刊日:
公開日:
キーワードタグ:
Operators must open or close a lot of HCU valves in a short time during periodical inspection on BWR Nuclear Power Plant. On H amaoka NPP, the HCU valves are operated by special handling tools. But the tools are not exactly appropriate for operating the HCU valves. So, many operators feel tough, when they operate the HCU valves.In order to reduce their feeling of toughness, the handling tools have been improved by producing prototypes, examining the touch by mock-up unit, testing durability and so on....
英字タイトル:
Improvement on handling tool for HCU valveIRA
第8回
IAEA報告及び基準と福島事故
著者:
水町 渉,Wataru MIZUMACHI
発刊日:
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キーワードタグ:
On March 11th,2011, 4th largest earthquake attacked Fukushima Nuclear Power Plant and around one hour later, the enormous Tsunami attacked it also. After the large earthquake attacked, the automatic shutdown was performed and the emergency diesel generators automatically started and Is olation condenser cooled down the core for unit 1 and RCIC cooled down the cores for unit 2 and 3. However, the large Tsunami damaged all emergency diesel generators and all ECCS pumps. The core melted and the hydrogen gas w...
英字タイトル:
IAEA報告及び基準と福島事故
第8回
PD 資格試験開始から5年の実施状況
著者:
渡辺 恵司,Keiji WATANABE,東海林 一,Hajime SHOHJI,秀 耕一郎,Koichiro HIDE
発刊日:
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キーワードタグ:
The PD Center of Central Research Institute of Electric Power Industry (CRIEPI) commenced Performance Demonstration examina tions for flaw depth sizing of austenitic stainless steel pipes in March 2006. As of February, 2011, 29 examination courses have been completed and 38 out of 49 candidates passed the examination including recertification test. The average error mar gin of the successful applicant of the PD examination to the eleventh stage was 0.31 mm, and standard deviation was 1:9 mm....
英字タイトル:
Report on Performance Demonstration test for depth sizing of SCC in austenitic stainless steel pipes during five years
第8回
RCIC タービン制御装置の国産化更新工事
著者:
生田 睦男,Takeo IKUTA,牛尾 嘉宏,Yoshihiro USHIO,荻原 邦弘,Kunihiro OGIHARA,戸村 孝,Takashi TOMURA,高島 博之,Hiroyuki TAKASHIMA,大田 博司,Hiroshi OTA
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キーワードタグ:
We have developed a new digital control system for RCIC steam turbine and applied Shimane Nuclear Power Station Unit No.2. Original turbine control system uses analog single controller. However, availability and maintainability of t he equipment, we decided to replace to new digital redundant system to keep Controllability, Maintainability and Rel iability. The system has been confirmed controllability by during start up test and put into service operation now....
英字タイトル:
RCIC Turbine Control System Upgrade Construction
第8回
RF タグの放射線環境下での保全への適用
著者:
寺浦 信之,Nobuyuki TERAURA,伊藤 邦雄,Kunio ITO,高橋 直樹,Naoki TAKAHASHI,櫻井 幸一,Kouichi SAKURAI
発刊日:
公開日:
キーワードタグ:
RF tags that are implemented RFID technology as tag has been used in various fields. Tags have been developed, such as resistance to chemic als and high temperature resistant RF tags are also used in specialized fields. The RF tag apply to the existing nuclear field, had been co ncerned about the effects of radiation to the RF tags. Now, since the RF tag with a goal to develop radiation-proof, we have examined, such as applying for maintenance of nuclear facilities under radiation environment. We report t...
英字タイトル:
Application to the conservation of RF tags in the radiation environment
第8回
TMI とチェルノブイリ事故の教訓と対策
著者:
杉山 憲一郎,Kenichiro SUGIYAMA,奈良林 直,Tadashi NARABAYASHI
発刊日:
公開日:
キーワードタグ:
The 2011 off the Pacific coast of Tohoku Pacific Earthquake and the Tsunami gave the serious damage to the Fukushima-Daiichi Nuclear Power Plants (NPPs). The accidents occurred in Unit 1, 2, 3 and 4. It is said that the height of tsunami attacked Fukushima NPP was more than 14m. After 50 minutes from the automatic shut-down, tsunami a ttacked the NPPs in Fukushima Daiichi NPPs. For example, the Unit 1 lost A/C power caused the loss of water injection function; it made the core meltdown and unusual increase...
英字タイトル:
Lessons Learned from the TMI-2 Accident and Chernobyl Nuclear Disaster for Nuclear SafetyInnovation
第8回
もんじゅ等エネルギー機器用構造材料の劣化損傷のマイクロキャラクタリゼーション
著者:
鈴木 隆之,Takayuki SUZUKI,橋立 竜太,Ryuta HASHIDATE,砥出 朋史,Tomofumi TOIDE,原田 祥久,Yoshihisa HARADA
発刊日:
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キーワードタグ:
Creep tests for energy structural materials of austenitic stainless steel SUS316FR were performed. And degradation mechanism of welded specimen was investigated by using microcharacterization technique of magnetic force microscopy. In as-received specimen, magnetic phases of S-ferrite were interconnected at weld metal region. While in crept specimen, the magnetic phases at weld metal region were isolated, and the amount of magnetic phases decreased. It was found that creep da mage of welded specimen could ...
英字タイトル:
Microcharacterization of damage degradation for energy structural materialsof advanced fast breeder reactor
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