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
Mass spectrometry method
Specification of latency in programmable device configuration
Polishing composition
Digital X-ray detector arrangement and digital X-ray imaging method
Photoelectric conversion apparatus
Decentralized processing network
Stable aqueous composite compositions
  Randomly Featured Patents
Thin film magnetic head
Method and apparatus for the production of polyamides
Method of relieving analgesia and reducing inflamation using a cannabinoid delivery topical liniment
Clothing and textile system
Bone screw
Disk medium and method of writing data onto the disk medium
Image forming apparatus including endless belt with reduced heat loss
Small electric vehicle
Portable storage container
Microphone stand