GB1332773A - Single seed fuel module for a light water breeder reactor - Google Patents
Single seed fuel module for a light water breeder reactorInfo
- Publication number
- GB1332773A GB1332773A GB972072A GB972072A GB1332773A GB 1332773 A GB1332773 A GB 1332773A GB 972072 A GB972072 A GB 972072A GB 972072 A GB972072 A GB 972072A GB 1332773 A GB1332773 A GB 1332773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blanket
- fuel
- region
- rods
- seed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 title abstract 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 2
- 239000008188 pellet Substances 0.000 abstract 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 abstract 1
- 229910052776 Thorium Inorganic materials 0.000 abstract 1
- 229910052770 Uranium Inorganic materials 0.000 abstract 1
- 229910001093 Zr alloy Inorganic materials 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000002574 poison Substances 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 230000009257 reactivity Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical group [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/30—Control of nuclear reaction by displacement of the reactor fuel or fuel elements
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C1/00—Reactor types
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/18—Moderator or core structure; Selection of materials for use as moderator characterised by the provision of more than one active zone
- G21C5/20—Moderator or core structure; Selection of materials for use as moderator characterised by the provision of more than one active zone wherein one zone contains fissile material and another zone contains breeder material
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1332773 Fuel elements UNITED STATES ATOMIC ENERGY COMMISSION 2 March 1972 [15 March 1971] 9720/72 Heading G6C A fuel module for a seed-blanket type, light water breeder reactor comprises a single seed region 34 disposed within an elongated, movable assembly 22 and including a plurality of spaced apart seed rods 36, and a blanket region 42 disposed within a stationary assembly 24 surrounding the movable assembly 22 and including a plurality of spaced apart blanket rods 48 fuelled with fertile material and containing small amounts of fissile material. Several of these fuel modules are assembled together to form the entire core of the reactor and reactivity control is achieved in the reactor by moving the seed region of each module into and out of the reactor core. The fuel rods 36 include upper and lower blanket regions 38, 40 of movable assembly 22, which regions comprise Th<SP>232</SP>O 2 , and the seed region 34 which comprises a U<SP>233</SP>O 2 /Th<SP>232</SP>O 2 mixture, the U<SP>233</SP>O 2 comprising 5 to 15, preferably 7À4 wt. per cent of the mixture. Thorium poison wedge stepping is employed in seed region 34 by tapering as shown, and blanket region 38 is stepped complementary to the stepped portion of seed region 34. Each of the fuel rods 36 comprises a Zr-alloy casing in which a plurality of seed fuel pellets and blanket fuel pellets are stacked to achieve the stepping configuration of Fig. 2 when the fuel rods 36 are assembled. The fuel rods 48 comprise uranium-bearing blanket region 42 and upper and lower blanket regions 44, 46, these rods being of similar construction but of larger diameter than the fuel rods 36. The blanket region 42 is fuelled with a U<SP>233</SP>O 2 /Th<SP>232</SP>O 2 mixture, the U<SP>233</SP>O 2 comprising 0À8 to 3À0, preferably 1À7 wt. per cent of the mixture, while the blanket fuel in upper and lower blanket regions 44, 46 is comprised of Th<SP>232</SP>O 2 . The blanket regions 42, 46 are tapered stepwise and complementarily to one another. The fuel rods 36, 48 are assembled in loosely packed array, being axially spaced from one another by spacer grids.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12415071A | 1971-03-15 | 1971-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1332773A true GB1332773A (en) | 1973-10-03 |
Family
ID=22413074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB972072A Expired GB1332773A (en) | 1971-03-15 | 1972-03-02 | Single seed fuel module for a light water breeder reactor |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2211038A1 (en) |
| FR (1) | FR2130225B1 (en) |
| GB (1) | GB1332773A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4235669A (en) * | 1978-03-30 | 1980-11-25 | The United States Of America As Represented By The United States Department Of Energy | Nuclear reactor composite fuel assembly |
| DE3008472A1 (en) * | 1980-03-05 | 1981-09-17 | Kraftwerk Union AG, 4330 Mülheim | HETEROGENIC CORE REACTOR |
| FR2552921B1 (en) * | 1983-09-30 | 1985-12-27 | Framatome Sa | FUEL ASSEMBLY FOR A PRESSURE WATER NUCLEAR REACTOR |
| FR2559941B1 (en) * | 1984-02-16 | 1986-07-04 | Framatome Sa | NUCLEAR REACTOR OF THE SUB-MODERATE TYPE |
| FR2565396B1 (en) * | 1984-05-30 | 1989-06-30 | Framatome Sa | METHOD FOR OPERATING A LIGHT WATER AND SPECTRUM VARIATION REACTOR |
| DE4214371A1 (en) * | 1992-04-30 | 1993-11-04 | Siemens Ag | FUEL ELEMENT WITH DISPLACEMENT BODIES |
-
1972
- 1972-03-02 GB GB972072A patent/GB1332773A/en not_active Expired
- 1972-03-08 DE DE19722211038 patent/DE2211038A1/en active Pending
- 1972-03-14 FR FR7208876A patent/FR2130225B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2130225B1 (en) | 1975-04-25 |
| DE2211038A1 (en) | 1972-09-28 |
| FR2130225A1 (en) | 1972-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |