GB1292335A - Improvements in and relating to fuel elements for nuclear reactors - Google Patents
Improvements in and relating to fuel elements for nuclear reactorsInfo
- Publication number
- GB1292335A GB1292335A GB20753/69A GB2075369A GB1292335A GB 1292335 A GB1292335 A GB 1292335A GB 20753/69 A GB20753/69 A GB 20753/69A GB 2075369 A GB2075369 A GB 2075369A GB 1292335 A GB1292335 A GB 1292335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel
- fins
- container
- fuel member
- graphite
- 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
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/28—Fuel elements with fissile or breeder material in solid form within a non-active casing
-
- 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)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
1292335 Fuel elements NUCLEAR POWER GROUP Ltd 31 March 1970 [23 April 1969] 20753/69 Heading G6C A fuel element comprises a nuclear fuel member located in a graphite container, adjacent surfaces of both the container and the fuel member having fins, the fins on the container overlapping radially those on the fuel member. Initially the fuel member is a close fit inside the container so as to minimize gaps at the fuelgraphite interface. Differential shrinkage of fuel member and graphite during operation causes gaps to open up which can result in overheating of the fuel member. The radial height of the fins is such, however, that an overlap is maintained even after the gaps have opened up to the maximum degree. Various fin shapes are possible and in one embodiment the fins are of sawtooth form so designed as to induce relative rotation between the fuel member and the container. As a result of the overlapping fins heat can be transferred in a circumferential direction which means that the temperature drop across the fuel-graphite interface is less dependent on radial gap width than with elements without fins of the kind described. Any contact between the fins reduces the temperature difference between the fuel and graphite and hence reduces the risk of overheating of the fuel in local regions. Typically the fuel member is of enriched uranium in particulate form in a graphite matrix. The fuel member may be annular in crosssection and have both inner and outer graphite containers, each provided with fins overlapping radially corresponding fins on the fuel member. In this case, the coolant flows between the outer surface of the inner container and the inner surface of the fuel member, as well as over the outer surface of the outer container and the inner surface of the inner container.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20753/69A GB1292335A (en) | 1969-04-23 | 1969-04-23 | Improvements in and relating to fuel elements for nuclear reactors |
DE19702019302 DE2019302A1 (en) | 1969-04-23 | 1970-04-22 | Nuclear reactor fuel element |
BE749342D BE749342A (en) | 1969-04-23 | 1970-04-22 | IMPROVEMENTS IN FUEL ELEMENTS FOR NUCLEAR REACTORS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB20753/69A GB1292335A (en) | 1969-04-23 | 1969-04-23 | Improvements in and relating to fuel elements for nuclear reactors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1292335A true GB1292335A (en) | 1972-10-11 |
Family
ID=10151076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20753/69A Expired GB1292335A (en) | 1969-04-23 | 1969-04-23 | Improvements in and relating to fuel elements for nuclear reactors |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE749342A (en) |
DE (1) | DE2019302A1 (en) |
GB (1) | GB1292335A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1195441A (en) * | 1982-03-03 | 1985-10-15 | Stefan Begej | Nuclear reactor fuel element having improved heat transfer |
-
1969
- 1969-04-23 GB GB20753/69A patent/GB1292335A/en not_active Expired
-
1970
- 1970-04-22 BE BE749342D patent/BE749342A/en unknown
- 1970-04-22 DE DE19702019302 patent/DE2019302A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
BE749342A (en) | 1970-10-01 |
DE2019302A1 (en) | 1971-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |