JPS5474985A - Nuclear fuel element - Google Patents
Nuclear fuel elementInfo
- Publication number
- JPS5474985A JPS5474985A JP14316177A JP14316177A JPS5474985A JP S5474985 A JPS5474985 A JP S5474985A JP 14316177 A JP14316177 A JP 14316177A JP 14316177 A JP14316177 A JP 14316177A JP S5474985 A JPS5474985 A JP S5474985A
- Authority
- JP
- Japan
- Prior art keywords
- pellet
- diameter
- gap
- relationship
- height
- 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.)
- Pending
Links
Classifications
-
- 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
PURPOSE: To reduce the distortion through a mutual mechanical action by ensuring that a fixed equatiom is met in the relationship between the ratio of the diameter to the height of pellets, the maximum dimention of diagonal line passing the center of a pellet, the diameter of a pellet and the size of a gap, and so on.
CONSTITUTION: A nuclear fuel pellet 11 to be charged into a coated pipe is produced as follows; Fine powder of uranium dioxide is mixed with a small amount of polyvinyl alcohol as a lublicant and pelletized to ultimately accomplish a green compacting in a given shape. After degreasing the pellet thus formed is sintered at 1,600°C in the stream of hydrogem. The dimensions of the pellet is 3.6 mm to height and 1.13 mm in diameter. A curvature of 0.5 mm with a radius of R is given to the angle of the pellet so that the dimension 1 of the diagonal line passing the center of the pellet may be smaller than the sum of the diameter D and the gold cap G. {a relationship if l<(D+G)}. In the chraging, the pellet thus produced drops through a pipe 11 coated with zircaloy having a gap 12 therein from the upper end.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14316177A JPS5474985A (en) | 1977-11-28 | 1977-11-28 | Nuclear fuel element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14316177A JPS5474985A (en) | 1977-11-28 | 1977-11-28 | Nuclear fuel element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5474985A true JPS5474985A (en) | 1979-06-15 |
Family
ID=15332328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14316177A Pending JPS5474985A (en) | 1977-11-28 | 1977-11-28 | Nuclear fuel element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5474985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2817385A1 (en) * | 2000-11-30 | 2002-05-31 | Framatome Anp | OXIDIZED NUCLEAR FUEL PELLET AND PENCIL COMPRISING A STACK OF SUCH PELLETS |
| JP2004321937A (en) * | 2003-04-24 | 2004-11-18 | Nippon Air Filter Kk | Folding-in type air filter and production method therefor |
| JP2005193131A (en) * | 2004-01-06 | 2005-07-21 | Freunt Ind Co Ltd | Filter, filter apparatus, and particulate treatment apparatus |
-
1977
- 1977-11-28 JP JP14316177A patent/JPS5474985A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2817385A1 (en) * | 2000-11-30 | 2002-05-31 | Framatome Anp | OXIDIZED NUCLEAR FUEL PELLET AND PENCIL COMPRISING A STACK OF SUCH PELLETS |
| WO2002045096A1 (en) * | 2000-11-30 | 2002-06-06 | Framatome Anp | Pencil comprising a stack of oxide nuclear fuel pellets |
| JP2004321937A (en) * | 2003-04-24 | 2004-11-18 | Nippon Air Filter Kk | Folding-in type air filter and production method therefor |
| JP2005193131A (en) * | 2004-01-06 | 2005-07-21 | Freunt Ind Co Ltd | Filter, filter apparatus, and particulate treatment apparatus |
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