[특허]Use of boron or enriched boron 10 in UO

[미국특허] Use of boron or enriched boron 10 in UO 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G21C-003/00
출원번호	US-0965372 (2004-10-14)
발명자 / 주소	Lahoda,Edward J.
출원인 / 주소	Westinghouse Electric Co. LLC
인용정보	피인용 횟수 : 7 인용 특허 : 15

초록 ▼

The present invention provides a nuclear fuel assembly, where a boron-containing compound is used as a burnable poison and is distributed in a majority of the rods in the assembly. The assembly comprises a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets, wherein at least one fuel pellet in more than 50% of the fuel rods in the fuel assembly comprises a sintered admixture of a metal oxide, metal carbide or metal nitride and a boron-containing compound.

대표청구항 ▼

What is claimed is: 1. A fuel assembly comprising a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets not requiring coatings, wherein at least one fuel pellet in more than 50% of said fuel rods in said fuel assembly comprises a sintered admixture consisting of UO2 and ZrB2. 2. The fuel assembly of claim 1, wherein said ZrB2 is present in said fuel pellet in an amount of about 5 ppm to about 5 wt %, based on the total amount of fuel in said fuel pellet. 3. The fuel assembly of claim 2, wherein boron of said ZrB 2 is present in said fuel pellet in an amount of about 10 ppm to about 20,000 ppm, based on the total amount of fuel in said fuel pellet. 4. The fuel assembly of claim 1, wherein said ZrB2 in said at least one fuel pellet comprises enriched boron. 5. The fuel assembly of claim 4, wherein said enriched boron is enriched to a content of 10B greater than natural boron. 6. The fuel assembly of claim 1, wherein at least one fuel pellet in at least 60% of said fuel rods in said fuel assembly comprises a sintered admixture of UO2. 7. The fuel assembly of claim 1, wherein at least one fuel pellet in at least 70% of said fuel rods in said fuel assembly comprises a sintered admixture of UO2 and ZrB2. 8. The fuel assembly of claim 1, wherein at least one fuel pellet in at least 80% of said fuel rods in said fuel assembly comprises a sintered admixture of UO2 and ZrB2. 9. The fuel assembly of claim 1, wherein at least one fuel pellet in at least 90% of said fuel rods in said fuel assembly comprises a sintered admixture of UO2 and ZrB2. 10. The fuel assembly of claim 1, wherein at least one fuel pellet in more than 50% and less than 90% of said fuel rods in said fuel assembly comprises a sintered admixture of UO2 and ZrB2. 11. The fuel assembly of claim 3, wherein the boron is 600 to 20000 ppm of the admixture. 12. A boiling water reactor having a fuel assembly, the fuel assembly comprising a plurality of fuel rods, each fuel rod containing a plurality of nuclear fuel pellets not requiring coatings, wherein at least one fuel pellet in more than 50% of said fuel rods in said fuel assembly comprises a sintered admixture consisting of UO2 and ZrB2.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Mildrum Claude M. (Monroeville Borough PA) Taleyarkhan Rusi P. (Pittsburgh PA), BWR fuel assembly with improved spacer and fuel bundle design for enhanced thermal-hydraulic performance.
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Taleyarkhan Rusi P. (Pittsburgh PA), Boiling water reactor fuel rod.
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Radford Kenneth C. (Irwin PA) Parks Beryl H. (Lexington SC), Burnable absorber coated nuclear fuel.
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Ho Shih-Ming (Penn Hills Township ; Allegheny County PA) Radford Kenneth C. (Irwin PA), Burnable absorber-containing nuclear fuel pellets and formation of the same.
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Proebstle Richard A. (San Jose CA) Marlowe Mickey O. (Fremont CA) Reese Anthony P. (San Jose CA), Fissionable nuclear fuel composition.
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Aoyama Motoo (Mito JPX) Masumi Ryoji (Hitachi JPX) Ishibashi Yooko (Hitachiota JPX) Kurihara Kunitoshi (Katsuta JPX), Fuel assembly.
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Eisenstatt, Larry R.; Radford, Kenneth C., Method for coating a nuclear fuel with boron nitride.
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Edwards John,GBX, Nuclear fuel pellets.
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Alsop Brian H. (Trafford PA), Nuclear fuel rod containing a hybrid gadolinium oxide, boron carbide burnable absorber.
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Grossman Leonard N. (Herculaneum MO) Jonsson Alf I. (W. Suffield CT), Nuclear fuel with isotopically depleted burnable absorber.
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Kapil Sushil K. (Plum Boro PA), Nuclear reactor core having nuclear fuel and composite burnable absorber arranged for power peaking and moderator temper.
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Kapil Sushil K. (Plum Boro PA), Nuclear reactor core having nuclear fuel and composite burnable absorber arranged for power peaking and moderator temper.
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Chubb Walston (Murrysville PA), PCI resistant fuel and method and apparatus for controlling reactivity in a reactor core.
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Peehs Martin (Bubenreuth DEX) Drr Wolfgang (Herzogenaurach DEX), Sintered nuclear fuel compact and method for its production.
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Cura Harald (Dormitz DEX) Peehs Martin (Bubenreuth DEX) Gradel Gerhard (Forchheim DEX) Roppelt Alfons (Forchheim DEX) Ortlieb Erhard (Kalchreuth DEX) Perkins Richard A. (Kennewick WA), Uranium-containing nuclear-fuel sintered pellet.
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이 특허를 인용한 특허 (7) 인용/피인용 타임라인 분석

Rhee, Young Woo; Kim, Dong-Joo; Kim, Jong-Hun; Yang, Jae-Jo; Kim, Keon-Sik; Koo, Yang-Hyun, Fabrication method of burnable absorber nuclear fuel pellets and burnable absorber nuclear fuel pellets fabricated by the same.
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Lahoda, Edward J.; Mazzoccoli, Jason P.; Xu, Peng, Kinetically applied gradated Zr-Al-C ceramic or Ti-Al-C ceramic or amorphous or semi-amorphous stainless steel with nuclear grade zirconium alloy metal structure.
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Fawcett, Russell Morgan; Gonzales, Randy Peter; Higgins, Russell Patrick; James, Robert Bryant; Kiernan, Michael Thomas; Russell, II, William Earl; Shelton, Steven Bruce; Smith, David Grey; Stachowski, Russell Edward; Trosman, Lukas, Method of producing isotopes in power nuclear reactors.
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Fawcett, Russell Morgan; Gonzales, Randy Peter; Higgins, Russell Patrick; James, Robert Bryant; Kiernan, Michael Thomas; Russell, II, William Earl; Shelton, Steven Bruce; Smith, David Grey; Stachowski, Russell Edward; Trosman, Lukas, Method of producing isotopes in power nuclear reactors.
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Higgins, Russell Patrick; Mills, Vernon W.; Smith, David Grey; Luciano, Gerald Anthony; Van Slyke, Roger Howard; Russell, II, William Earl; Bloomquist, Bradley D., Rod assembly for nuclear reactors.
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Xu, Peng; Lahoda, Edward J.; Hallstadius, Lars; Choi, Joon Hyung; Higuchi, Shinichi; Kano, Fumihisa, SiC matrix fuel cladding tube with spark plasma sintered end plugs.
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Xu, Peng; Lahoda, Edward J.; Hallstadius, Lars; Choi, Joon Hyung; Higuichi, Shinichi; Kano, Fumihisa, SiC matrix fuel cladding tube with spark plasma sintered end plugs.
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[미국특허] Use of boron or enriched boron 10 in UO 원문보기