JPS6429794A - Fuel assembly - Google Patents
Fuel assemblyInfo
- Publication number
- JPS6429794A JPS6429794A JP62186410A JP18641087A JPS6429794A JP S6429794 A JPS6429794 A JP S6429794A JP 62186410 A JP62186410 A JP 62186410A JP 18641087 A JP18641087 A JP 18641087A JP S6429794 A JPS6429794 A JP S6429794A
- Authority
- JP
- Japan
- Prior art keywords
- fuel rods
- small units
- centers
- distance
- adjacent
- 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
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
PURPOSE:To increase the effective multiplication constant at the time of operation so that the dealing with higher burnup is enabled and the deterioration in thermal characteristic is suppressed by setting the distance between the centers of fuel rods in adjacent small units larger than the distance between the centers of the fuel rods adjacent to each other within the small units. CONSTITUTION:The small unit 14 is constituted by setting the distance between the centers of the fuel rods 13 constant and bundling a small number of the fuel rods. Plural sets of such small units 14 are so disposed that the distance L1 between the centers of the fuel rods 13 belonging to the respectively different small units 14 and adjacent to each other is larger than the distance L2 between the centers of the fuel rods 13 adjacent to each other within the small units 14. A large water rod 15 having the diameter larger than the fuel rods 13 is disposed near the center of the space formed by these small units 14 and a flow control material F is disposed into the gap formed of the large water rod 15 and the fuel rods 13 in the corner parts of the small units 14 in such a manner as to have the axial center on a straight line connecting the center of the large water rod 15 and the bundle corners. The flow of coolant is thereby uniformized and the deterioration in the thermal characteristic is suppressed. In addition, the margin for reactor shut-down and the moderator density reactivity coefft. are improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186410A JPS6429794A (en) | 1987-07-24 | 1987-07-24 | Fuel assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186410A JPS6429794A (en) | 1987-07-24 | 1987-07-24 | Fuel assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429794A true JPS6429794A (en) | 1989-01-31 |
Family
ID=16187929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62186410A Pending JPS6429794A (en) | 1987-07-24 | 1987-07-24 | Fuel assembly |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429794A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5320553A (en) * | 1991-06-11 | 1994-06-14 | Sumitomo Wiring Systems, Ltd. | Bulb socket and terminal installed thereon |
US5875224A (en) * | 1997-09-02 | 1999-02-23 | General Electric Company | Swirler attachment for a spacer of a nuclear fuel bundle |
US6765979B1 (en) * | 1996-04-01 | 2004-07-20 | General Electric Company | Fluid separation device for vent volumes of nuclear fuel bundles |
-
1987
- 1987-07-24 JP JP62186410A patent/JPS6429794A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5320553A (en) * | 1991-06-11 | 1994-06-14 | Sumitomo Wiring Systems, Ltd. | Bulb socket and terminal installed thereon |
US5411412A (en) * | 1991-06-11 | 1995-05-02 | Sumitomo Wiring Systems, Ltd. | Bulb socket and terminal installed thereon |
US6765979B1 (en) * | 1996-04-01 | 2004-07-20 | General Electric Company | Fluid separation device for vent volumes of nuclear fuel bundles |
US5875224A (en) * | 1997-09-02 | 1999-02-23 | General Electric Company | Swirler attachment for a spacer of a nuclear fuel bundle |
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