ES336064A1 - Nuclear Fuel-Element - Google Patents
Nuclear Fuel-ElementInfo
- Publication number
- ES336064A1 ES336064A1 ES336064A ES336064A ES336064A1 ES 336064 A1 ES336064 A1 ES 336064A1 ES 336064 A ES336064 A ES 336064A ES 336064 A ES336064 A ES 336064A ES 336064 A1 ES336064 A1 ES 336064A1
- Authority
- ES
- Spain
- Prior art keywords
- wafers
- fuel
- wafer
- plug
- tube
- 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
- G21C3/17—Means for storage or immobilisation of gases in fuel elements
-
- 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
- G21C3/04—Constructional details
- G21C3/16—Details of the construction within the casing
- G21C3/18—Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
-
- 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
A fuel element comprises nuclear fuel 50 housed in an elongated cladding tube 45, the upper end of which includes a plenum chamber 54 to collect fission product gases, with welded end plugs 46, 48 sealing the ends of the tube, at least one thin metal wafer, e.g. wafers 102, 1021 being disposed between the fuel and the lower end plug 48 to provide thermal interfaces both between the fuel and the wafer(s) and between the wafer(s) and the plug to reduce the quantity of heat transferred from the fuel to the plug 48 and thus prevent excessive stresses from being formed in the welded connection between the plug 48 and the cladding tube 45. The two thin metal wafers 102, 1021 are triangular and have rounded apexes, one wafer being displaced through 60 degrees with respect to the other. The cladding tube is preferably made of Zr and the wafers of Zr or stainless steel. The use of triangular wafers is particularly advantageous in that when such wafers are inserted into the upper end of the cladding tube, which is tilted so that the wafers ride down the tube, they invariably come to rest flat against the face of either the end plug or another wafer which has already been inserted. Circular wafers, for example, when inserted in this manner frequently come to rest on their edges at the bottom of the tube. A fuel element assembly (Fig. 1, not shown) is described comprising a plurality of fuel elements of the above construction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52306066A | 1966-01-26 | 1966-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES336064A1 true ES336064A1 (en) | 1968-12-16 |
Family
ID=24083501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES336064A Expired ES336064A1 (en) | 1966-01-26 | 1967-01-25 | Nuclear Fuel-Element |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES336064A1 (en) |
| FR (1) | FR1516040A (en) |
| GB (1) | GB1173928A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420316A (en) * | 2021-12-02 | 2022-04-29 | 岭澳核电有限公司 | Control rod for nuclear fuel and cladding thereof |
-
1966
- 1966-12-13 FR FR87282A patent/FR1516040A/en not_active Expired
- 1966-12-28 GB GB57996/66A patent/GB1173928A/en not_active Expired
-
1967
- 1967-01-25 ES ES336064A patent/ES336064A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1516040A (en) | 1968-03-08 |
| GB1173928A (en) | 1969-12-10 |
| DE1589803A1 (en) | 1970-12-23 |
| DE1589803B2 (en) | 1975-10-16 |
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