GB1233832A - - Google Patents
Info
- Publication number
- GB1233832A GB1233832A GB2387869A GB1233832DA GB1233832A GB 1233832 A GB1233832 A GB 1233832A GB 2387869 A GB2387869 A GB 2387869A GB 1233832D A GB1233832D A GB 1233832DA GB 1233832 A GB1233832 A GB 1233832A
- Authority
- GB
- United Kingdom
- Prior art keywords
- absorbing material
- thimble tube
- neutron absorbing
- reactor
- gaseous
- 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
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/22—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of a fluid or fluent neutron-absorbing material, e.g. by adding neutron-absorbing material to the coolant
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/005—Flux flattening
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
-
- 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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1,233,832. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 5 May, 1970 [9 May, 1969], No. 23878/69. Heading G6C. A reactor has neutron absorbing material for flux shaping disposed within fuel assemblies, there being access to the material for varying its neutron absorption whilst the fuel assemblies are in their operating position in the reactor without breaching the coolant circuit. The fuel assemblies may each comprise a cluster of sheathed fuel rods arranged about a central hollow tie and suspended from a closure plug at one end of a coolant tube, a thimble tube extending from outside the plug along the longitudinal axis of the tie with the closed end of the thimble tube within the tie, and the neutron absorbing material being contained within the thimble tube. The neutron absorbing material may be gaseous, e.g. Kr or Xe, and ducted to the thimble tube from control equipment whereby it can be pressurized to vary its density and hence its neutron absorption. Alternatively, solid, liquid or gaseous neutron absorbing material may be contained within a replaceable capsule which is contained by the thimble tube. Periodically, whilst the reactor is in operation the capsules containing neutron absorbing material may be withdrawn and re-arranged throughout the core, or, where the material is gaseous and simply ducted to the thimble tube, it is varied in pressure to shape the flux pattern across the core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2387869 | 1969-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1233832A true GB1233832A (en) | 1971-06-03 |
Family
ID=10202787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2387869A Expired GB1233832A (en) | 1969-05-09 | 1969-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1233832A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160698A (en) * | 1984-06-22 | 1985-12-24 | Westinghouse Electric Corp | Moderator control apparatus for a nuclear reactor fuel assembly |
| EP0175975A2 (en) * | 1984-09-26 | 1986-04-02 | Westinghouse Electric Corporation | Absorber rod of soluble and burnable absorber for a nuclear reactor |
| US4683103A (en) * | 1985-02-12 | 1987-07-28 | Westinghouse Electric Corp. | Spectral shift apparatus and method for a nuclear reactor fuel assembly |
| US4687621A (en) * | 1984-08-06 | 1987-08-18 | Westinghouse Electric Corp. | Nuclear fuel assembly with improved spectral shift-producing rods |
-
1969
- 1969-05-09 GB GB2387869A patent/GB1233832A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160698A (en) * | 1984-06-22 | 1985-12-24 | Westinghouse Electric Corp | Moderator control apparatus for a nuclear reactor fuel assembly |
| US4657726A (en) * | 1984-06-22 | 1987-04-14 | Westinghouse Electric Corp. | Moderator control apparatus for a nuclear reactor fuel assembly |
| US4687621A (en) * | 1984-08-06 | 1987-08-18 | Westinghouse Electric Corp. | Nuclear fuel assembly with improved spectral shift-producing rods |
| EP0175975A2 (en) * | 1984-09-26 | 1986-04-02 | Westinghouse Electric Corporation | Absorber rod of soluble and burnable absorber for a nuclear reactor |
| EP0175975A3 (en) * | 1984-09-26 | 1987-01-28 | Westinghouse Electric Corporation | Soluble burnable absorber rod for a nuclear reactor |
| US4683103A (en) * | 1985-02-12 | 1987-07-28 | Westinghouse Electric Corp. | Spectral shift apparatus and method for a nuclear reactor fuel assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |