JP2020514682A - 原子力機器の許認可取得のためのリアルタイム測定値と原子論的モデリングの統合 - Google Patents
原子力機器の許認可取得のためのリアルタイム測定値と原子論的モデリングの統合 Download PDFInfo
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- G21C17/06—Devices or arrangements for monitoring or testing fuel or fuel elements outside the reactor core, e.g. for burn-up, for contamination
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Abstract
Description
本願は、参照によって本願に組み込まれる2016年12月15日出願の米国仮特許出願第62/434,530号に基づく優先権の利益を主張する。
本発明は、エネルギー省との契約第DE−NE0008222号に基づく政府支援の下でなされたものである。米国政府は、本発明に対して一定の権利を有している。
(1)新しいシステムのモデルを作成する。
(2)サンプルを作製し、原子炉用としての承認を受ける。
(3)実験炉、試験炉、または商用炉において、燃料の最終使用時における予想サイクル長の照射時間に達するまでサンプルを試験する。
q=(Tcenterline−Tsurface)*4*kU02/r2
kU02=q*r2/4/(Tcenterline−Tsurface)
既知の値 r=0.4095cm
測定値 Tcenterline=2227℃
測定値 Tsurface=400℃
測定値 パワー密度=q=22.5kw/ft=1402W/cm3
計算値 kU02=0.032W/cm/℃
Claims (16)
- 原子力機器の許認可を得るために使用するプロセスであって、
原子炉の燃料の所定の物理特性を当該燃料の予想サイクル長の少なくとも一部期間にわたって予測するための原子論的モデルを作成するステップと、
当該原子炉内で試験中のサンプルから収集されるリアルタイムデータによって当該モデルを検証するステップと
からなるプロセス。 - 原子炉燃料の物理特性を当該燃料の予想サイクル長にわたって予測するために前記原子論的モデルを作成する、請求項1のプロセス。
- 前記リアルタイムデータは、圧力、温度、構成機器体積の変化、応力・ひずみ引張、エネルギー、熱容量、熱伝導率、核分裂生成ガス放出量、燃料スエリング、燃料融点、およびそれらの組み合わせから成る群より選択される、請求項1のプロセス。
- 前記リアルタイムデータを前記物理特性モデルと比較し、前記物理特性モデルを前記リアルタイムデータに適合するように調整するステップをさらに含む、請求項1のプロセス。
- 前記燃料の最終許認可申請書を作成して規制機関に提出するために、前記比較されたリアルタイムデータと、前記調整された物理特性モデルがあればそのモデルとを使用するステップをさらに含む、請求項4のプロセス。
- 前記リアルタイムデータを前記物理特性モデルと比較し、前記燃料を前記物理特性モデルに適合するように調整するステップをさらに含む、請求項1のプロセス。
- 前記調整された燃料の最終許認可申請書を作成して規制機関に提出するために、前記比較されたリアルタイムデータと、前記調整された燃料があればその燃料とを使用するステップをさらに含む、請求項6のプロセス。
- 原子炉で使用される構成機器の許認可に必要なパラメータを実証するプロセスであって、
原子炉の運転の対象となる条件下での構成機器の少なくとも1つの物理特性および構成機器の挙動をモデル化するステップと、
当該物理特性および当該挙動の当該モデルを用いて、当該構成機器の予備的な許認可申請書を作成し、原子炉内での当該構成機器の使用の承認について責任を負う規制機関に提出するステップと、
構成機器のサンプルを作製するステップと、
当該構成機器サンプルを原子炉内に設置するステップと、
当該原子炉の運転中に対象となるパラメータを監視するためのセンサを当該原子炉内に設置するステップと、
当該原子炉を所定の期間にわたって運転するステップと、
当該原子炉内の当該センサから当該対象となるパラメータの測定データをリアルタイムで回収するステップと、
当該リアルタイムデータを当該物理特性モデルおよび当該構成機器挙動モデルと比較するステップと、
随意的に、当該物理特性モデルおよび当該構成機器挙動モデルのうちの一方または両方を当該リアルタイムデータに適合するように調整するステップと、
当該比較されたリアルタイムデータと、当該物理特性モデルおよび構成機器挙動モデルの調整されたモデルがあればそのモデルとを用いて、当該構成機器の最終許認可申請書を作成し、当該規制機関に提出するステップと
からなるプロセス。 - 前記構成機器は原子燃料である、請求項8のプロセス。
- 前記構成機器は原子力発電所の安全関連機器である、請求項8のプロセス。
- 前記構成機器挙動モデルは原子モデルである、請求項8のプロセス。
- 前記物理特性モデルは原子モデルに基づく、請求項11のプロセス。
- 前記規制機関は米国原子力規制委員会である、請求項8のプロセス。
- 前記対象となるパラメータは、圧力、温度、構成機器体積の変化、応力・ひずみ引張、エネルギー、熱容量、熱伝導率、核分裂生成ガス放出量、燃料スエリング、燃料融点、およびそれらの組み合わせから成る群より選択される、請求項8のプロセス。
- 前記原子炉の運転の前記対象となる条件は、通常条件、事故条件およびそれらの組み合わせから選択される、請求項8のプロセス。
- 前記センサは、熱電対、熱音響センサ、真空マイクロエレクトロニクスデバイス、火花送信機、ひずみ計、運動センサ、融点センサ、中性子束センサ、電力センサ、およびそれらの組み合わせから成る群より選択される、請求項8のプロセス。
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US201662434530P | 2016-12-15 | 2016-12-15 | |
US62/434,530 | 2016-12-15 | ||
US15/451,643 | 2017-03-07 | ||
US15/451,643 US10685754B2 (en) | 2016-12-15 | 2017-03-07 | Integration of real-time measurements and atomistic modeling to license nuclear components |
PCT/US2017/058650 WO2018111417A1 (en) | 2016-12-15 | 2017-10-27 | Integration of real-time measurements and atomistic modeling to license nuclear components |
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JP7004484B2 JP7004484B2 (ja) | 2022-01-21 |
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US (1) | US10685754B2 (ja) |
EP (1) | EP3555890A4 (ja) |
JP (1) | JP7004484B2 (ja) |
KR (1) | KR102523407B1 (ja) |
CN (1) | CN110024047B (ja) |
WO (1) | WO2018111417A1 (ja) |
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CN111695245B (zh) * | 2020-05-20 | 2023-04-28 | 北京科技大学 | 一种材料辐照损伤空间分辨随机团簇动力学并行模拟方法 |
CN112364288B (zh) * | 2020-10-27 | 2022-08-05 | 中国核动力研究设计院 | 一种反应堆多物理场耦合计算系统及方法 |
CN112906271B (zh) * | 2021-02-22 | 2022-02-11 | 中国核动力研究设计院 | 一种反应堆瞬态物理热工全耦合精细数值模拟方法及系统 |
CN114420329B (zh) * | 2022-01-18 | 2023-12-12 | 西安交通大学 | 一种测量核反应堆燃料温度的方法 |
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JPH09211177A (ja) * | 1996-02-07 | 1997-08-15 | Hitachi Ltd | 混合酸化物燃料を使用する原子炉の炉心性能予測監視装置および予測方法 |
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US6535568B1 (en) * | 1999-12-30 | 2003-03-18 | Global Nuclear Fuel -- Americas Llc | Method and system for generating thermal-mechanical limits for the operation of nuclear fuel rods |
AU2002235516A1 (en) | 2001-01-08 | 2002-07-16 | Vextec Corporation | Method and apparatus for predicting failure in a system |
JP2005505768A (ja) * | 2001-10-05 | 2005-02-24 | ゼネラル・エレクトリック・カンパニイ | 沸騰水型原子炉の出力増加を認可する方法 |
US6907791B2 (en) * | 2002-10-25 | 2005-06-21 | General Electric Company | Methods and systems for determining fatigue usage factors for reactor components |
US8873698B2 (en) * | 2002-12-18 | 2014-10-28 | Global Nuclear Fuel—Americas, LLC | Computer-implemented method and system for designing a nuclear reactor core which satisfies licensing criteria |
US7200541B2 (en) * | 2002-12-23 | 2007-04-03 | Global Nuclear Fuel-Americas, Llc | Method and arrangement for determining nuclear reactor core designs |
US7426458B2 (en) | 2004-12-30 | 2008-09-16 | Global Nuclear Fuel - Americas, Llc | Nuclear reactor reload licensing analysis system and method |
FR2924852B1 (fr) * | 2007-12-07 | 2010-02-19 | Areva Np | Procede de determination de la valeur d'un parametre representatif de la manoeuvrabilite d'un reacteur nucleaire, systeme de determination, programme d'ordinateur et support correspondant. |
US10319484B1 (en) * | 2011-11-17 | 2019-06-11 | Nuscale Power, Llc | Method for imaging a nuclear reactor |
US9424376B2 (en) * | 2011-11-18 | 2016-08-23 | Terrapower, Llc | Enhanced neutronics systems |
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KR20190087641A (ko) | 2019-07-24 |
US20180174695A1 (en) | 2018-06-21 |
CN110024047A (zh) | 2019-07-16 |
WO2018111417A1 (en) | 2018-06-21 |
EP3555890A4 (en) | 2020-06-24 |
EP3555890A1 (en) | 2019-10-23 |
US10685754B2 (en) | 2020-06-16 |
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