Nuclear fuel bundle containing thorium and nuclear reactor comprising same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G21C-003/60
G21C-003/326
G21C-003/328
G21C-003/58
출원번호
US-0819999
(2010-09-03)
등록번호
US-9799414
(2017-10-24)
국제출원번호
PCT/IB2010/002501
(2010-09-03)
§371/§102 date
20130412
(20130412)
국제공개번호
WO2012/028900
(2012-03-08)
발명자
/ 주소
Boubcher, Mustapha
Kuran, Sermet
Cottrell, Cathy
Bodner, Robert R.
Hamilton, Holly Bruce
Hyland, Bronwyn H.
Arsenault, Benoit
출원인 / 주소
Atomic Energy of Canada Limited
대리인 / 주소
Michael Best & Friedrich LLP
인용정보
피인용 횟수 :
0인용 특허 :
76
초록▼
Fuel bundles for a nuclear reactor are disclosed, and in some embodiments include a first fuel element including thorium dioxide; a second fuel element including uranium having a first fissile content; and a third fuel element including uranium having a second fissile content different from the firs
Fuel bundles for a nuclear reactor are disclosed, and in some embodiments include a first fuel element including thorium dioxide; a second fuel element including uranium having a first fissile content; and a third fuel element including uranium having a second fissile content different from the first fissile content. Nuclear reactors using such fuel bundles are also disclosed, including pressurized heavy water nuclear reactors. The uranium having the different fissile contents can include combinations of natural uranium, depleted uranium, recycled uranium, slightly enriched uranium, and low enriched uranium.
대표청구항▼
1. A fuel bundle for a nuclear reactor comprising: a first fuel element including thorium dioxide;a second fuel element including uranium having a first fissile content; anda third fuel element including uranium having a second fissile content different from the first fissile content,wherein the fir
1. A fuel bundle for a nuclear reactor comprising: a first fuel element including thorium dioxide;a second fuel element including uranium having a first fissile content; anda third fuel element including uranium having a second fissile content different from the first fissile content,wherein the first fuel element, the second fuel element, and the third fuel element are arranged such that a common coolant flows over each of the first fuel element, the second fuel element, and the third fuel element. 2. The fuel bundle of claim 1, wherein the uranium having the first fissile content includes recycled uranium having a fissile content of approximately 0.72 wt % of 235U to approximately 1.2 wt % of 235U. 3. The fuel bundle of claim 2, wherein the uranium having the second fissile content includes recycled uranium having a fissile content of approximately 0.72 wt % of 235U to approximately 1.2 wt % of 235U. 4. The fuel bundle of claim 2, wherein the uranium having the second fissile content includes slightly enriched uranium having a fissile content of approximately 0.9 wt % of 235U to approximately 3 wt % of 235U. 5. The fuel bundle of claim 2, wherein the uranium having the second fissile content includes natural uranium having a fissile content of approximately 0.71 wt % of 235U. 6. The fuel bundle of claim 2, wherein the uranium having the second fissile content includes low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 7. The fuel bundle of claim 1, wherein the uranium having the first fissile content includes slightly enriched uranium having a fissile content of approximately 0.9 wt % of 235U to approximately 3 wt % of 235U. 8. The fuel bundle of claim 7, wherein the uranium having the second fissile content includes slightly enriched uranium having a fissile content of approximately 0.9 wt % of 235U to approximately 3 wt % of 235U. 9. The fuel bundle of claim 7, wherein the uranium having the second fissile content includes natural uranium having a fissile content of approximately 0.71 wt % of 235U. 10. The fuel bundle of claim 7, wherein the uranium having the second fissile content includes low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 11. The fuel bundle of claim 1, wherein the uranium having the first fissile content includes natural uranium having a fissile content of approximately 0.71 wt % of 235U. 12. The fuel bundle of claim 11, wherein the uranium having the second fissile content includes low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 13. The fuel bundle of claim 1, wherein the uranium having the first fissile content includes low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 14. The fuel bundle of claim 13, wherein the uranium having the second fissile content includes low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 15. The fuel bundle of claim 2, wherein the uranium included in at least one of the second fuel element and the third fuel element is included with at least one of recycled uranium having a fissile content of approximately 0.72 wt % of 235U to approximately 1.2 wt % of 235U, depleted uranium having a fissile content of approximately 0.2 wt % of 235U to approximately 0.5 wt % of 235U, slightly enriched uranium having a fissile content of approximately 0.9 wt % of 235U to approximately 3 wt % of 235U, natural uranium having a fissile content of approximately 0.71 wt % of 235U, and low enriched uranium having a fissile content of approximately 3 wt % of 235U to approximately 20 wt % of 235U. 16. The fuel bundle of claim 2, wherein the uranium included in at least one of second fuel element and the third fuel element is included with a burnable poison. 17. The fuel bundle of claim 2, wherein the thorium dioxide included in the first fuel element is included with a burnable poison. 18. The fuel bundle of claim 1, wherein the first fuel element includes a rod of thorium dioxide. 19. The fuel bundle of claim 1, wherein the second fuel element includes a rod of the uranium having the first fissile content. 20. The fuel bundle of claim 1, wherein the third fuel element includes a rod of the uranium having the second fissile content. 21. The fuel bundle of claim 1, wherein the first fuel element includes a tube containing the thorium dioxide. 22. The fuel bundle of claim 1, wherein the second fuel element includes a tube containing the uranium having the first fissile content. 23. The fuel bundle of claim 1, wherein the third fuel element includes a tube containing the uranium having the second fissile content. 24. The fuel bundle of claim 1, wherein the second fissile content is higher than the first fissile content. 25. A nuclear reactor comprising: a tube of pressurized fluid; and the fuel bundle of claim 1.
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이 특허에 인용된 특허 (76)
Greenspan Ehud (4 Captain Dr. #407 Emeryville CA 94608), BWR fuel assembly having oxide and hydride fuel.
Gutierrez Rueben L. (Los Alamos NM) Herbst Richard J. (Los Alamos NM) Johnson Karl W. R. (Los Alamos NM), Fabrication of thorium bearing carbide fuels.
Reese Anthony P. (San Jose CA) Crowther ; Jr. deceased Russell L. (late of San Jose CA by Cosette M. Crowther ; Russell L. Crowther III ; Eric J. Crowther ; heirs), MOx fuel assembly design.
Wilbuer,Klaus Leo; Diersch,Rudolf; Stelzer,Hermann; Patzelt,Matthias; Methling,Dieter, Method for producing a coating for absorption of neutrons produced in nuclear reactions of radioactive materials.
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