Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Moderator rod containing burnable poison and fuel assembly utilizing same










Image Number 17 for United States Patent #5416813.

A moderator rod provided with a burnable poison and disposed in a fuel assembly of a reactor core comprises an outer tube, an inner tube disposed in the outer tube, the outer and inner tubes constituting a double tube structure between which an annular section is formed, and a burnable poison charged in said annular section. A containing amount of the burnable poison per unit area of the annular section is distributed at least one of peripheral direction and axial direction of the double tube structure of the inner and outer tubes. A fuel assembly of a nuclear reactor comprises an upper tie plate, a lower tie plate, a number of fuel rods supported at their upper ends by the upper tie plate and at their lower ends by the lower tie plate and filled up in their inner spaces with a plurality of fuel pellets, at least one of moderator rods containing burnable poison in various states and a channel box. The moderator has an outer tube and an inner tube disposed coaxially in the outer tube. An area of a metal, ceramics or thermet containing the burnable poison is formed at a portion except for portions having axial length corresponding to 1/24 to 1/12 length of the fuel effective length from the upper and lower ends thereof.








 
 
  Recently Added Patents
System and method for updating firmware
Storage apparatus and method including page discard processing for primary and secondary volumes configured as a copy pair
MiR 204, miR 211, their anti-miRs, and therapeutic uses of same
Control method of LPI lamp for LPI vehicle and logic therefor
Distylium plant named `PIIDIST-I`
Touchscreen with Z-velocity enhancement
System and method for identifying a target signal in an optical transport network frame structure
  Randomly Featured Patents
Apparatus, and an associated method, for preserving communication service quality levels during hand-off of communications in a radio communication system
Heavy duty display hook
Echo canceling apparatus, telephone set using the same, and echo canceling method
Camera having solid state diaphragm device
Power tool with a cutting depth adjustment mechanism
Apparatus and method for computer screen security
Sustained action dosage forms
Bicycle generator-containing hub and a lighting apparatus using the hub
Surface densification of porous materials
Network visualization tool utilizing iterative rearrangement of nodes on a grid lattice using gradient method