（東工大）
著者に関連した記事は13件です。
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第15回
原子炉水位計指示誤差解消システムの開発
著者:
奈良林 直,（東工大）,倉 佑希,（北海道電力）,山本 康功,千葉 豪,（北海道大）
発刊日:
公開日:
キーワードタグ:
Back Fill System Concreate Core debris High temperature Severe Accidents Water Level Gauge Drift
奈良林 直,（東工大）,倉 佑希,（北海道電力）,山本 康功,千葉 豪,（北海道大）
発刊日:
公開日:
キーワードタグ:
Back Fill System Concreate Core debris High temperature Severe Accidents Water Level Gauge Drift
In Fukushima accident on 2011, molten core supposed to be leaked on the concreate floor in containment vessel. After the loss of both the emergency core cooling system and IC core cooling, primary containment vessel (PCV) pressure increased. Water level measurement drifted because of water evaporation in the reference leg. Radiation level increased at a turbine building (T/B). There was a hydrogen explosion the after suppression chamber (S/C) wet venting.
Modular Accident Analysis Program (MAAP) code analys...
英字タイトル:
Development of Back-Fill System for Water Level Measurement Drift
英字タイトル:
Development of Back-Fill System for Water Level Measurement Drift
第15回
廃炉作業用多核種高除染性空気浄化システムの開発 （3）湿式フィルターの除染性能の高性能化
著者:
奈良林 直,（東工大）,藤井 拓也,（日本原電）,渡邊 優太,千葉 豪,増田 隆夫,（北海道大）,佐藤 修彰,（東北大）
発刊日:
公開日:
キーワードタグ:
Decommissioning DF: Decontamination Factor Filtered venting system Multi-nuclide aerosol filters Radiation protection Silver Zeolite Wet-type Filter
奈良林 直,（東工大）,藤井 拓也,（日本原電）,渡邊 優太,千葉 豪,増田 隆夫,（北海道大）,佐藤 修彰,（東北大）
発刊日:
公開日:
キーワードタグ:
Decommissioning DF: Decontamination Factor Filtered venting system Multi-nuclide aerosol filters Radiation protection Silver Zeolite Wet-type Filter
By using the FCVS technology, we had started to develop a high decontamination air cleaning system to remove multi-nuclides for radiation protection to conduct decommissioning the Fukushima NPP. High efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris has been developing at Hokkaido University. A plasma cutter, laser cutter, wire cutter, drilling machine, etc., will be used and will generate aerosols. Therefore, the air cleaning system should be needed f...
英字タイトル:
Development of a high efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris(3) Improvement for Wet-Type Filter
英字タイトル:
Development of a high efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris(3) Improvement for Wet-Type Filter
第15回
廃炉作業用多核種高除染性空気浄化システムの開発 （4）乾式フィルターの除染性能の高性能化
著者:
奈良林 直,（東工大）,渡邊 優太,（北海道大）,藤井 拓也,（日本原電）,石井 亮憲,千葉 豪,増田 隆夫,佐藤 修彰,（東北大）
発刊日:
公開日:
キーワードタグ:
Core debris Decommissioning Filtered venting system Multi-nuclide aerosol filters Radiation protection Severe Accidents Silver Zeolite
奈良林 直,（東工大）,渡邊 優太,（北海道大）,藤井 拓也,（日本原電）,石井 亮憲,千葉 豪,増田 隆夫,佐藤 修彰,（東北大）
発刊日:
公開日:
キーワードタグ:
Core debris Decommissioning Filtered venting system Multi-nuclide aerosol filters Radiation protection Severe Accidents Silver Zeolite
By using the FCVS technology, we had started to develop a high decontamination air cleaning system to remove multi-nuclides for radiation protection to conduct decommissioning the Fukushima NPP. High efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris has been developing at Hokkaido University. A plasma cutter, laser cutter, wire cutter, drilling machine, etc., will be used and will generate aerosols. Therefore, the air cleaning system should be needed f...
英字タイトル:
Development of a high efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris (4) Improvement for Wet-Type Filter
英字タイトル:
Development of a high efficiency multi-nuclide aerosol filters for radiation protection during a process of cutting core debris (4) Improvement for Wet-Type Filter
第16回
湿式エアロゾルフィルターのスクラビングプールにおける二相流の挙動に関する実験およびシミュレーション
著者:
チャン チ ヴィエン,高橋 秀治,奈良林 直,木倉 宏成,（東工大）
発刊日:
公開日:
キーワードタグ:
Filtered containment venting system Scrubbing pool Severe accident TRAC code Two- phase flow Wet-type aerosol filter
チャン チ ヴィエン,高橋 秀治,奈良林 直,木倉 宏成,（東工大）
発刊日:
公開日:
キーワードタグ:
Filtered containment venting system Scrubbing pool Severe accident TRAC code Two- phase flow Wet-type aerosol filter
For decommissioning of the Fukushima Daiichi Nuclear Power Plant, a high efficiency Filtered Containment Venting System should be equipped to prevent the releasing of radioactive material to environment. The wet-type aerosol filter is the first stage of the Filtered Containment Venting System, and it plays significant role to removal the aerosol particles from the venting system. The decontamination of the filter strongly depends on the two- phase flow pattern in scrubbing pool of the filter. Therefore, in ...
英字タイトル:
Experimental and Simulation Studies on the Two-phase Flow Behavior in the Scrubbing Pool of the Wet-type Aerosol Filter
英字タイトル:
Experimental and Simulation Studies on the Two-phase Flow Behavior in the Scrubbing Pool of the Wet-type Aerosol Filter
第17回
異常時の電力レジリエンスにおける原子力の役割
著者:
奈良林 直,（東工大）
発刊日:
公開日:
キーワードタグ:
Abnormal heat Blizzards Earthquakes Global warming Nuclear power Power resilience Reduce CO2 emissions Renewable energy Torrential rains Typhoons
奈良林 直,（東工大）
発刊日:
公開日:
キーワードタグ:
Abnormal heat Blizzards Earthquakes Global warming Nuclear power Power resilience Reduce CO2 emissions Renewable energy Torrential rains Typhoons
It is premised on the safe operation of nuclear power plants, and it is possible to reduce the economic benefits and the serious risks facing humankind due to global warming. The use of renewable energy should be promoted, but it is important to promote the best mix with improved safety nuclear power generation and significantly reduce CO2 emissions. On the other hand, typhoons, blizzards, torrential rains, abnormal heat, earthquakes, etc. have caused major power outages all over the world. Solar power and ...
英字タイトル:
The Role of Nuclear in Power Resilience during Natural Disasters
英字タイトル:
The Role of Nuclear in Power Resilience during Natural Disasters
第16回
超音波探傷試験員の力量向上が配管破損リスクの低減に及ぼす影響の評価
著者:
小嶋 正義,高橋 秀治,木倉 宏成,（東工大）
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キーワードタグ:
Capability Improvement of UT Examiner Cumulative Failure Probability In-Service Inspection Piping Failure Risk Probabilistic Fracture Mechanics Probability of Detection Ultrasonic Testing
小嶋 正義,高橋 秀治,木倉 宏成,（東工大）
発刊日:
公開日:
キーワードタグ:
Capability Improvement of UT Examiner Cumulative Failure Probability In-Service Inspection Piping Failure Risk Probabilistic Fracture Mechanics Probability of Detection Ultrasonic Testing
Ultrasonic testing (UT) is a part of maintenance program for essential equipment of nuclear power plants in in-service inspection (ISI). Analyses of probabilistic fracture mechanics (PFM) for welds of class 1 piping have been studied to evaluate piping failure risks. Probability of detection (POD) is one of the important input conditions in the PFM analysis. The POD is closely related to a capability of UT examiners; therefore it is anticipated that the capability improvement of UT examiners is related to t...
英字タイトル:
Effect of Ultrasonic Testing Examiners’ Capability Improvements on Reduction of Piping Failure Risk
英字タイトル:
Effect of Ultrasonic Testing Examiners’ Capability Improvements on Reduction of Piping Failure Risk
第15回
過酷事故時の溶融デブリによるコンクリートの熱的 劣化とセラミックスの熱耐性に関する実験的研究
著者:
奈良林 直,（東工大）,晴山 隆仁,（北海道庁）,千葉 豪,（北海道大）,林 司,（中国電力）,今野 隆博,（日立GE),山口 篤憲,（保全学会）
発刊日:
公開日:
キーワードタグ:
alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
奈良林 直,（東工大）,晴山 隆仁,（北海道庁）,千葉 豪,（北海道大）,林 司,（中国電力）,今野 隆博,（日立GE),山口 篤憲,（保全学会）
発刊日:
公開日:
キーワードタグ:
alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
In Fukushima accident on 2011, molten core supposed to be leaked on the concreate floor in containment vessel. Development of small type of core catcher which can be installed in operating nuclear power plant is needed. In this investigation, the thermal deterioration of concreate and Magnesia-Carbon brick observed trough surface observation by microscope and measurement of compressive strength, weight reduction, and difference of void ratio. In addition, permeability measurement for burned concreate was op...
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
第17回
（１）訴訟による運転停止の回避と地元理解促進
著者:
奈良林 直,（東工大）,濱田 信善,（岡野バルブ）,遠藤 好司,（ラサ工業）,小林 三四郎,（森村商事）
発刊日:
公開日:
キーワードタグ:
AgX Lawsuit Preventive maintenance Public acceptance Severe accident Silver Zeolite
奈良林 直,（東工大）,濱田 信善,（岡野バルブ）,遠藤 好司,（ラサ工業）,小林 三四郎,（森村商事）
発刊日:
公開日:
キーワードタグ:
AgX Lawsuit Preventive maintenance Public acceptance Severe accident Silver Zeolite
A gas-liquid mixing nozzle and a multi-layer metal fiber filter are used, and a silver zeolite filter is installed for the purpose of removing organic iodine. Based on this technology, we have developed a demonstration machine for a large-capacity air purification system that purifies a large amount of contaminated air. A gas- liquid mixing nozzle driven by air blown from a blower sucks and accelerates water to form a high-speed two-phase flow. With this acceleration and centrifugal force field of water, al...
英字タイトル:
Advanced Radioactive Material Removal System by Silver Zeolite (1) Avoid outages due to lawsuit and promoting local public acceptance
英字タイトル:
Advanced Radioactive Material Removal System by Silver Zeolite (1) Avoid outages due to lawsuit and promoting local public acceptance