GB978159A - Solid moderator stack for nuclear reactors - Google Patents
Solid moderator stack for nuclear reactorsInfo
- Publication number
- GB978159A GB978159A GB24092/61A GB2409261A GB978159A GB 978159 A GB978159 A GB 978159A GB 24092/61 A GB24092/61 A GB 24092/61A GB 2409261 A GB2409261 A GB 2409261A GB 978159 A GB978159 A GB 978159A
- Authority
- GB
- United Kingdom
- Prior art keywords
- columns
- prisms
- elements
- beryllium
- july
- 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
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/02—Details
- G21C5/04—Spatial arrangements allowing for Wigner growth
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C5/00—Moderator or core structure; Selection of materials for use as moderator
- G21C5/02—Details
- G21C5/08—Means for preventing undesired asymmetric expansion of the complete structure ; Stretching devices, pins
-
- 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)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Particle Accelerators (AREA)
Abstract
978,159. Moderator structures. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 4,1961 [July 4, 1960], No. 24092/61. Heading G6C. A moderator structure comprising prismatic columns 1 of beryllium or beryllium oxide stacked side-by-side and connected by keys 8 oriented parallel to at least three directions passing through the axes of the columns 1 and engaged in longitudinal grooves machined in the lateral faces of the columns, is characterized in that each of the columns 1 is made up of superposed tubular elements of polygonal external outline each element consisting of separate indentical prisms, such as prisms 5, 6 and 7 in Fig. 1, one longitudinal face of each of which forms part of the duct which passes axially through the columns 1. The dividing of the elements into separate prisms prevents inadmissible stresses from being set up due to the difference in temperature existing between the internal and external surfaces of the elements, beryllium and beryllium oxide having an appreciable modulus of elasticity, a low tensile strength and a high coefficient of thermal expansion. Each element is angularly displaced with respect to its neighbours so that the planes in which the prisms in one element are in contact do not merge with those of adjacent elements. Columns 2, 3 form a reflector with metal stabilizing posts 4 disposed in the columns 3. As shown in Fig. 2, centring pieces 9 are provided on the upper faces of the prisms and engage corresponding recesses 10 in the lower faces of the prisms. Embodiments are described in which the columns 1 are of regular hexagonal, flattened hexagonal, and square cross-section. Specifications 913,818 and 977,019 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR831916A FR1270554A (en) | 1960-07-04 | 1960-07-04 | Solid moderator stacking method and device for nuclear reactors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB978159A true GB978159A (en) | 1964-12-16 |
Family
ID=8734766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24092/61A Expired GB978159A (en) | 1960-07-04 | 1961-07-04 | Solid moderator stack for nuclear reactors |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE605142A (en) |
DE (1) | DE1223463B (en) |
FR (1) | FR1270554A (en) |
GB (1) | GB978159A (en) |
LU (1) | LU40294A1 (en) |
NL (1) | NL266451A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1129265A (en) * | 1964-12-04 | 1968-10-02 | Atomic Energy Authority Uk | Improvements in graphite brick structures |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2743226A (en) * | 1949-08-16 | 1956-04-24 | Henry W Newson | Apparatus for the bombardment of samples with fast neutrons |
DE963090C (en) * | 1955-05-11 | 1957-05-02 | Dr Karl Wirtz | Nuclear reactor |
BE559090A (en) * | 1955-10-14 | |||
BE553218A (en) * | 1956-11-13 | |||
DE1756800U (en) * | 1956-12-17 | 1957-11-28 | Siemens Ag | MODERATOR BLOCK FOR NUCLEAR REACTORS. |
DE1251878B (en) * | 1957-05-01 | 1900-01-01 | ||
FR1214246A (en) * | 1958-10-18 | 1960-04-07 | Commissariat Energie Atomique | New binding mode of the solid moderator of a vertical channel atomic reactor with a centered hexagonal lattice |
NL125823C (en) * | 1958-10-18 |
-
0
- BE BE605142D patent/BE605142A/xx unknown
- NL NL266451D patent/NL266451A/xx unknown
-
1960
- 1960-07-04 FR FR831916A patent/FR1270554A/en not_active Expired
-
1961
- 1961-06-21 LU LU40294D patent/LU40294A1/xx unknown
- 1961-06-23 DE DEC24439A patent/DE1223463B/en active Pending
- 1961-07-04 GB GB24092/61A patent/GB978159A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1223463B (en) | 1966-08-25 |
LU40294A1 (en) | 1961-08-21 |
NL266451A (en) | |
BE605142A (en) | |
FR1270554A (en) | 1961-09-01 |
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