JP5574399B2 - 使用済み原子燃料の燃焼控除の改善方法 - Google Patents
使用済み原子燃料の燃焼控除の改善方法 Download PDFInfo
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- JP5574399B2 JP5574399B2 JP2008323771A JP2008323771A JP5574399B2 JP 5574399 B2 JP5574399 B2 JP 5574399B2 JP 2008323771 A JP2008323771 A JP 2008323771A JP 2008323771 A JP2008323771 A JP 2008323771A JP 5574399 B2 JP5574399 B2 JP 5574399B2
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- spent fuel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/42—Reprocessing of irradiated fuel
- G21C19/44—Reprocessing of irradiated fuel of irradiated solid fuel
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
- G21F9/36—Disposal of solid waste by packaging; by baling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Plasma & Fusion (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
料中に存在する238Uに端を発する。高級アクチニドの多くは自発核分裂によって崩壊するが、これは核分裂と関連する中性子放出を伴うプロセスである。中性子の二次供給源は酸化物燃料中に存在し、酸化物燃料において、(主として高級アクチニドの崩壊により発生する)強力なα粒子が酸素の18O同位体に作用することによって中性子が生成する。使用済み燃料の中性子比放射能が燃焼と関連することは多くの研究者によって実証されている。中性子放出率と燃焼度との間の詳細な数学的関係も使用済み燃料集合体に関する種々の測定結果を利用して推測されている。この関係の関数形として、中性子放出率は累乗した集合体燃焼度の関数である。中性子放出率に影響を与える変数としては、燃料タイプ、初期濃縮度、出力履歴、および原子炉からの燃料集合体抜き出し後の崩壊時間などが挙げられる。
軸方向燃焼度分布の測定方法を提供するが、この方法はこの分布に基き集合体の総燃焼度をより正確に計算する。総燃焼度の数値は燃焼控除を確定するために利用するが、軸方向燃焼度分布の形状は燃焼控除をさらに改良するためには利用されていない。本発明の目的は軸方向燃焼度分布の形状を利用して燃焼控除をさらに改良することにある。
rksに入力して、臨界分析を実施しなければならない。これらの限界値は図5および6に関連して後述する曲線で表わされる。臨界分析、初期濃縮度、および平均燃焼度および燃焼度分布形状測定データからの限界値を利用してTracWorksにより使用済み燃料プール中への各集合体の配置が妥当であるかどうかを評価する。
Claims (2)
- 使用済み燃料貯蔵容器内に新たな使用済み燃料集合体を配置することの可否を判断する方法であって、燃料貯蔵容器は1組X+1本の使用済み燃料集合体が配置可能な複数組の2×2配列または3×3配列の配置場所を有し、新たな使用済み燃料集合体を配置する場所は複数組の2×2配列または3×3配列の配置場所に配置された各組X本の使用済み燃料集合体により囲まれており、
各組の2×2配列または3×3配列につき、それぞれの曲線が好ましくない軸方向燃焼度分布を有する配置された使用済み燃料集合体の本数に応じた一連の濃縮度対現時点燃焼度曲線を作成し、一連の曲線が上下に順次間隔を保つX+2本の曲線から成り、一番上の曲線は使用済み燃料集合体のすべてが好ましくない軸方向燃焼度分布を有する状況に対応し、一番下の曲線はX+1本の使用済み燃料集合体のうちいずれも好ましくない軸方向燃焼度分布を有しない状況に対応し、中間に位置する曲線はそれぞれ、X+1本の使用済み燃料集合体のうち好ましくない軸方向燃焼度分布を有する燃料集合体の本数が下方の曲線ほど順次少ない状況に対応し;
X+1本の使用済み燃料集合体のそれぞれの軸方向燃焼度分布を実測し;
X+1本の使用済み燃料集合体のうちの何本が好ましくない軸方向燃焼度分布を有するかをチェックし;
好ましくない軸方向燃焼度分布を有するとされる使用済み燃料集合体の本数から新たな使用済み燃料集合体に、一連の曲線のうちのどの曲線を適用できるかを識別し;
適用曲線がプロットされているグラフ上の、新たな使用済み燃料集合体の現時点燃焼度および初期濃縮度に対応する点を見つけ;
グラフ上の点が適用可能な曲線よりも上方にあるか否かを判断するステップから成り、グラフ上の点が適用可能な曲線よりも上方にある場合には新たな使用済み燃料集合体を配置可能である、新たな使用済み燃料集合体を配置することの可否を判断する方法。 - 配列は2×2であり、X=3である請求項1に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/961,196 | 2007-12-20 | ||
US11/961,196 US8428215B2 (en) | 2007-12-20 | 2007-12-20 | Method of improving the spent nuclear fuel burnup credit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009168801A JP2009168801A (ja) | 2009-07-30 |
JP5574399B2 true JP5574399B2 (ja) | 2014-08-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2008323771A Active JP5574399B2 (ja) | 2007-12-20 | 2008-12-19 | 使用済み原子燃料の燃焼控除の改善方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US8428215B2 (ja) |
JP (1) | JP5574399B2 (ja) |
KR (1) | KR101515638B1 (ja) |
CN (1) | CN101465169B (ja) |
BR (1) | BRPI0805681B1 (ja) |
ES (1) | ES2374119B2 (ja) |
FR (1) | FR2925751B1 (ja) |
TW (1) | TWI457947B (ja) |
ZA (1) | ZA200809839B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2488181C1 (ru) * | 2012-04-27 | 2013-07-20 | Федеральное государственное бюджетное учреждение "Национальный исследовательский центр "Курчатовский институт" | Способ контроля безопасности бассейнов выдержки хранилищ отработавшего ядерного топлива аэс |
CN103065697B (zh) * | 2012-12-26 | 2016-01-20 | 中国核电工程有限公司 | 一种不置信硼的乏燃料水池格架临界安全控制方法 |
JP6429480B2 (ja) * | 2014-04-08 | 2018-11-28 | 三菱重工業株式会社 | 燃料配置方法及び燃料取扱設備 |
JP6448221B2 (ja) * | 2014-05-30 | 2019-01-09 | 株式会社東芝 | 燃料デブリの燃焼度計測装置及びその燃焼度計測方法 |
RU2634124C1 (ru) * | 2016-06-08 | 2017-10-24 | Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" | Способ контроля подкритичности бассейнов выдержки хранилища отработавшего ядерного топлива |
CN106898387A (zh) * | 2017-02-28 | 2017-06-27 | 中国核动力研究设计院 | 一种反应堆取消二次中子源的方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04283696A (ja) * | 1991-03-12 | 1992-10-08 | Nuclear Fuel Ind Ltd | 使用済燃料集合体の燃焼度測定方法 |
JPH0659082A (ja) * | 1992-08-12 | 1994-03-04 | Mitsui Eng & Shipbuild Co Ltd | 使用済燃料集合体の燃焼度クレジット導入方法 |
JPH0659085A (ja) * | 1992-08-12 | 1994-03-04 | Mitsui Eng & Shipbuild Co Ltd | 使用済燃料集合体の未臨界度測定システム及び未臨界度測定方法 |
JP3349180B2 (ja) * | 1992-11-18 | 2002-11-20 | 三菱重工業株式会社 | 使用済燃料の測定方法 |
JPH06194490A (ja) * | 1992-12-22 | 1994-07-15 | Mitsubishi Atom Power Ind Inc | 使用済燃料集合体燃焼度の検証方法 |
US5793636A (en) | 1995-04-28 | 1998-08-11 | Westinghouse Electric Corporation | Integrated fuel management system |
FR2739180B1 (fr) * | 1995-09-27 | 1998-09-04 | Framatome Sa | Procede et dispositif de mesure d'au moins une longeur caracteristique sur un crayon de combustible dispose a la peripherie d'un assemblage de combustible nucleaire |
US5969359A (en) | 1996-09-30 | 1999-10-19 | Westinghouse Electric Company | Monitoring of neutron and gamma radiation |
US6252923B1 (en) | 1999-08-10 | 2001-06-26 | Westinghouse Electric Company Llc | In-situ self-powered monitoring of stored spent nuclear fuel |
CN1832053A (zh) * | 2005-03-11 | 2006-09-13 | 田嘉夫 | 轻水型中小动力反应堆堆芯燃料组件布料和换料方法 |
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- 2007-12-20 US US11/961,196 patent/US8428215B2/en active Active
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- 2008-11-18 ZA ZA200809839A patent/ZA200809839B/xx unknown
- 2008-11-26 TW TW97145729A patent/TWI457947B/zh active
- 2008-12-02 ES ES200803430A patent/ES2374119B2/es active Active
- 2008-12-17 FR FR0858693A patent/FR2925751B1/fr active Active
- 2008-12-18 CN CN2008101852107A patent/CN101465169B/zh active Active
- 2008-12-18 BR BRPI0805681-1A patent/BRPI0805681B1/pt not_active IP Right Cessation
- 2008-12-19 KR KR1020080130662A patent/KR101515638B1/ko active IP Right Grant
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Publication number | Publication date |
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BRPI0805681B1 (pt) | 2019-07-02 |
US20110216869A1 (en) | 2011-09-08 |
US8428215B2 (en) | 2013-04-23 |
BRPI0805681A2 (pt) | 2011-10-18 |
TW200931446A (en) | 2009-07-16 |
FR2925751B1 (fr) | 2017-07-28 |
CN101465169B (zh) | 2013-07-17 |
KR20090067116A (ko) | 2009-06-24 |
ES2374119A1 (es) | 2012-02-14 |
ZA200809839B (en) | 2009-08-26 |
JP2009168801A (ja) | 2009-07-30 |
FR2925751A1 (fr) | 2009-06-26 |
TWI457947B (zh) | 2014-10-21 |
KR101515638B1 (ko) | 2015-04-27 |
ES2374119B2 (es) | 2013-02-04 |
CN101465169A (zh) | 2009-06-24 |
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