GB1066264A - Nuclear reactor - Google Patents
Nuclear reactorInfo
- Publication number
- GB1066264A GB1066264A GB38494/64A GB3849464A GB1066264A GB 1066264 A GB1066264 A GB 1066264A GB 38494/64 A GB38494/64 A GB 38494/64A GB 3849464 A GB3849464 A GB 3849464A GB 1066264 A GB1066264 A GB 1066264A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- fertile
- reactor
- rods
- fissile
- 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
- G21C7/30—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
- G21C1/00—Reactor types
- G21C1/04—Thermal reactors ; Epithermal reactors
- G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
- G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
-
- 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)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1,066,264. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 21. 1964 [Nov. 15, 1963], No. 38494/64. Heading G6C. In a large pressurized-water power breeder reactor there are no neutron absorbers in the core apart from safety rods, and control is effected by moving fuel to vary the ratio of neutrons used for fission and breeding. The core is formed of a number of core assemblies, each being independently critical, and containing both fissile and fertile material, U 235 or U 233 , and U 238 or Th 232 respectively, and all being in dioxide form. It is envisaged that the reactor will operate at its full power of 1720 MW(th) for 10 years without refuelling. Reactor.-Coolant enters the spherical pressure vessel 20 through a pipe 35 which leads to an inlet plenum chamber 31. 40% of the coolant enters ports 36 and passes upwards within the movable centres of the core assemblies, out through the ends of these parts to the stationary part of the core assemblies, and finally through outlets 49. Tile remainder of the coolant enters the core assemblies through ports 53B and makes three passes through each before leaving. The core weight is transmitted to the pressure vessel by the inlet plenum chamber. Core assemblies (Figs. 1, 3).-The core of the reactor is assembled basically from a number of circular section units 42 each surrounded by three chevron section units 38. These units are arranged on a triangular lattice. The innermost section, 41, is the movable portion of the assembly and is surrounded by the fixed annular portion 42. Both sections comprise a plurality of rods 44 containing fertile and/or fuel material. An annular neutron absorbing safety element 43 is insertable between the sections 41 and 42. Each blanket segment 38 contains fertile rods 55 and has an internal baffle 58 forming two of the coolant passes referred to earlier, the third pass being through the fixed annular section 42. Thus the critical units of the reactor core each comprise a group formed by members 41, 42. and three members 38. Each rod in the central region of section 41 is entirely of fertile material, and the remaining rods of section 41 have upper portions of fertile material and lower portions of fissile material. The relative lengths of fissile and fertile material in the rods are so arranged that, referring to Fig. 10, the central rod 41 has fertile material 45 and fissile material 46. A similar arrangement of the rods in the annular section 42 results in that part of the assembly having a fissile region 46 and a fertile region 45. Reactor operation.-All reactivity control, other than emergency shut-down, is achieved by moving the centre core assembly sections 41. Initially, all power is generated by the fissile material, but towards the end of the reactor lifetime about 65% of the power will be derived from the originally fertile loading. At start-up, the movable sections are set at positions of maximum reactivity, are moved to minimum positions after about 30,000 hours and gradually returned to their original positions in about 70.000 hours.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32414563A | 1963-11-15 | 1963-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1066264A true GB1066264A (en) | 1967-04-26 |
Family
ID=23262291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38494/64A Expired GB1066264A (en) | 1963-11-15 | 1964-09-21 | Nuclear reactor |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE655683A (en) |
DE (1) | DE1439845A1 (en) |
GB (1) | GB1066264A (en) |
NL (1) | NL6413282A (en) |
SE (1) | SE306377B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1922593A1 (en) * | 1968-05-02 | 1970-07-30 | Gen Electric | Nuclear reactor with fuel element containing plutonium, which are arranged on the edge of the reactor core |
CN114171214A (en) * | 2021-12-03 | 2022-03-11 | 中国原子能科学研究院 | Control rod system for critical apparatus |
-
1964
- 1964-09-21 GB GB38494/64A patent/GB1066264A/en not_active Expired
- 1964-11-06 DE DE19641439845 patent/DE1439845A1/en active Pending
- 1964-11-09 SE SE13469/64A patent/SE306377B/xx unknown
- 1964-11-13 BE BE655683D patent/BE655683A/xx unknown
- 1964-11-13 NL NL6413282A patent/NL6413282A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1922593A1 (en) * | 1968-05-02 | 1970-07-30 | Gen Electric | Nuclear reactor with fuel element containing plutonium, which are arranged on the edge of the reactor core |
CN114171214A (en) * | 2021-12-03 | 2022-03-11 | 中国原子能科学研究院 | Control rod system for critical apparatus |
CN114171214B (en) * | 2021-12-03 | 2024-02-20 | 中国原子能科学研究院 | Control rod system for critical device |
Also Published As
Publication number | Publication date |
---|---|
BE655683A (en) | 1965-03-01 |
SE306377B (en) | 1968-11-25 |
DE1439845A1 (en) | 1969-10-23 |
NL6413282A (en) | 1965-05-17 |
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