（北海道大）
著者に関連した記事は7件です。
更新情報
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16回
地質構造から見た北海道ブラックアウト
著者:
杉山 憲一郎,（北海道大）
発刊日:
公開日:
キーワードタグ:
Dispersibility Earthquake Geological Structure Hokkaido Blackout Short Circuit
杉山 憲一郎,（北海道大）
発刊日:
公開日:
キーワードタグ:
Dispersibility Earthquake Geological Structure Hokkaido Blackout Short Circuit
The present paper explains that the southwest region of the central Hokkaido has a geological structure of causing M6.7 earthquake on September 6, 2018, and multiple short circuits of jumper lines at transmission line towers near the epicenter, which caused the shutdowns of main hydropower units (370MW), were fatal to prevent the blackout. This means that a large-scale hydropower units with reliable capability of automatic frequency control are always required in case of a large-scale shutdown of thermal po...
英字タイトル:
Hokkaido Blackout from Aspect of Geological Structure
英字タイトル:
Hokkaido Blackout from Aspect of Geological Structure
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15回
稲作を中心とする福島の農産物の放射性セシウムの影響
著者:
杉山 憲一郎,（北海道大）
発刊日:
公開日:
キーワードタグ:
Cesium Level Cray Mineral International Standard Market Price Rice and Other
杉山 憲一郎,（北海道大）
発刊日:
公開日:
キーワードタグ:
Cesium Level Cray Mineral International Standard Market Price Rice and Other
In the present paper, the mechanism that cesium ions are captured in cray minerals is first explained to understand the low cesium concentration levels in rice and other at the market after the Fukushima Daiichi Accident. Then the cesium concentration levels and the market prices on rice and other in fiscal year 2018 are introduced. Based on the present situation on rice and other, the author proposes adapting the international standard on the regulation for food instead of the present standard in Japan....
英字タイトル:
Influence of Cesium on Rice and Other in Fukushima
英字タイトル:
Influence of Cesium on Rice and Other in Fukushima
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
（４）希ガス吸着システム
著者:
豊田 英晴,吉井 友彦,（木村化工機）,中坂 佑太,（北海道大）,奈良林 直,（東工大）,石川 慶浩,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:
Adsorbent AgR AgX Annulus FCVS Preventive maintenance Radioactive iodine Severe accident SGTS Silver zeolite XeA
豊田 英晴,吉井 友彦,（木村化工機）,中坂 佑太,（北海道大）,奈良林 直,（東工大）,石川 慶浩,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:
Adsorbent AgR AgX Annulus FCVS Preventive maintenance Radioactive iodine Severe accident SGTS Silver zeolite XeA
Since it is difficult to remove radioactive noble gas, the development of high performance adsorbent has been desired from the viewpoint of exposure prevention. We were able to develop a new adsorbent, XeA that has more than 10 times the performance of existing products. By utilizing this adsorbent in nuclear facilities, it is possible to contribute to the miniaturization of equipment, non-combustibility and reduction of radiation exposure....
英字タイトル:
Advanced Radioactive Material Removal System by Silver Zeolite (4) Noble gas adsorption system
英字タイトル:
Advanced Radioactive Material Removal System by Silver Zeolite (4) Noble gas adsorption system