上原 靖
著者に関連した記事は4件です。
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第5回
連成解析による気液二相流中構造物の振動・腐食評価手法の開発-3 流動解析と腐食解析の連成による単相および二相流中での配管減肉速度評価
著者:
内藤 正則,Masanori NAITOH,内田 俊介,Shunsuke UCHIDA,岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA,越塚 誠一,Seiichi KOSIZUKA
発刊日:
公開日:
キーワードタグ:
Evaluation method Flow accelerated corrosion Liquid droplet impingement Single phase flow Structural material integrity Two phase flow
内藤 正則,Masanori NAITOH,内田 俊介,Shunsuke UCHIDA,岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA,越塚 誠一,Seiichi KOSIZUKA
発刊日:
公開日:
キーワードタグ:
Evaluation method Flow accelerated corrosion Liquid droplet impingement Single phase flow Structural material integrity Two phase flow
In order to establish safe and reliable plant operation, it is required to forecast future troubles on structural materials based o n combined analyses of flow dynamics and corrosion and to mitigate them before they become serious on plant operation. In the prese ntation, discussion is focused on wall thinning of major pipes due to single and two phase flow. FAC (flow accelerated corrosion) is considered for wall thinning in single phase flow, while LDI (liquid droplet impingement) is evaluated for that in...
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis - 3Evaluation of Wall Thinning Rate in Single and Two Phase Flow with the Coupled Model ofFlow Dynamics Analysis and Corrosion Analysis
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis - 3Evaluation of Wall Thinning Rate in Single and Two Phase Flow with the Coupled Model ofFlow Dynamics Analysis and Corrosion Analysis
第5回
連成解析による気液二相流中構造物の振動・腐食評価手法の開発-4 乱流に起因する質量移行係数の評価
著者:
上原 靖,Yasushi UEHARA,内田 俊介,Shunsuke UCHIDA,内藤 正則,Masanori NAITOH,白川 典幸,Noriyuki SHIRAKAWA,王 盛,Sheng WANG
発刊日:
公開日:
キーワードタグ:
Flow accelerated corrosion Single phase flow Turbulence flow and Mass transfer coefficient
上原 靖,Yasushi UEHARA,内田 俊介,Shunsuke UCHIDA,内藤 正則,Masanori NAITOH,白川 典幸,Noriyuki SHIRAKAWA,王 盛,Sheng WANG
発刊日:
公開日:
キーワードタグ:
Flow accelerated corrosion Single phase flow Turbulence flow and Mass transfer coefficient
The pipe thinning phenomenon which is due to flow accelerated corrosion (FAC) is one of the major causes of unex pected troubles at current nuclear power plants. In order to prevent these troubles in the future, it is highly important to understand and analyze FAC mechanism. So, we calculated three dimensional flow to evaluate a turbul ence energy and a mass transfer coefficient at pipe surface which is one of the key parameters of corrosion model...
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis -4The evaluation of the mass transfer coefficient induced by a turbulence flow
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis -4The evaluation of the mass transfer coefficient induced by a turbulence flow
第5回
連成解析による気液二相流中構造物の振動・腐食評価手法の開発-5 電気化学モデルと二層酸化皮膜モデルを連成させた配管減肉速度評価
著者:
内田 俊介,Shunsuke UCHIDA,内藤 正則,Masanori NAITOH,岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA
発刊日:
公開日:
キーワードタグ:
corrosive conditions electrochemical corrosion potential flow accelerated corrosion hydrazine mass transfer coefficient oxygen
内田 俊介,Shunsuke UCHIDA,内藤 正則,Masanori NAITOH,岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA
発刊日:
公開日:
キーワードタグ:
corrosive conditions electrochemical corrosion potential flow accelerated corrosion hydrazine mass transfer coefficient oxygen
Wall thinning rates due to FAC were calculated with the coupled model of static electrochemical analysis and dynamic double oxide layer analysis at the identified danger zone. Anodic and cathodic current densities an d ECPs were calculated with the static electrochemistry model and ferrous ion release rate determined by the anodic current density was used as input for the dynamic double oxide layer model. Thickness of oxide film and its characteristics determined by the dynamic double oxide layer model wer...
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis -5Evaluation of Wall Thinning Rate with the Coupled Model of Static Electrochemical Analysis and Dynamic Double Oxide Layer Analysis
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis -5Evaluation of Wall Thinning Rate with the Coupled Model of Static Electrochemical Analysis and Dynamic Double Oxide Layer Analysis
第5回
連成解析による気液二相流中構造物の振動・腐食評価手法の開発-6 二相流での配管減肉評価モデル
著者:
岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA,内藤 正則,Masanori NAITOH,内田 俊介,Shunsuke UCHIDA
発刊日:
公開日:
キーワードタグ:
Evaluation method Liquid droplet impingement Oxidation of piping wall Two phase flow
岡田 英俊,Hidetoshi OKADA,上原 靖,Yasushi UEHARA,内藤 正則,Masanori NAITOH,内田 俊介,Shunsuke UCHIDA
発刊日:
公開日:
キーワードタグ:
Evaluation method Liquid droplet impingement Oxidation of piping wall Two phase flow
In order to evaluate the thinning rate of pip ing in feedwater drain systems in which , a n ew methodology is proposed in which the effe ct of oxidation of piping wall is considered....
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis-6Model for wall thinning rate of piping attached with two-phase flow
英字タイトル:
Development of Evaluation Method on Flow-induced Vibration and Corrosion ofComponents in Two-phase Flow by Coupled Analysis-6Model for wall thinning rate of piping attached with two-phase flow