Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of establishing a nuclear reactor core fuel assembly loading pattern










Image Number 2 for United States Patent #6931090.

All possible loading patterns for a nuclear reactor core are searched and optimized for compliance with design constraints. The fuel inventory is divided into a few batches according to coarse levels of reactivity. A recursive enumeration process identifies patterns meeting selected core position constraints, which can be user modified to adjust the search space size. For the batch loading patterns satisfying the constraints, the batches are divided into several smaller batches. A sensitivity matrix linearizing the relationship between fuel assembly position and the depletion model is processed through mixed integer linear programming with branching and bounding to identify an optimal daughter loading pattern. The process is repeated through several levels of batch refinement and selection of optimal daughter patterns, including a level where burnable absorbers are assigned to feed assemblies, until the individual fuel assembly level is reached. The multiple optimal patterns remaining provide a range of solutions.








 
 
  Recently Added Patents
Pill identification and counterfeit detection method
Gas cap removal tool
Surface acoustic wave resonator for down-hole applications
Image processing apparatus, image printing apparatus and printing data generation method
Storage system with LU-setting function
Sealed, waterproof digital electronic camera system and method of fabricating same
Method and receiver for jointly decoding received communication signals using maximum likelihood detection
  Randomly Featured Patents
Process for oxidation on fixed catalytic bed of methanol to formaldehyde
Purse
Photographic processing station with cleaning rollers
Solid polyelectrolytic module and solid polyelectrolytic apparatus using same
Voltage variation compensation arrangement for sample and hold capacitor
Dough forming molding assembly
Error handling in a state-free system
System and method for composite distance metric leveraging multiple expert judgments
Bypass oil refining device for internal combustion engines
Process for fabricating strip optoelectronic devices, particularly lasers, and devices obtained