Pressurized water reactor in-core nuclear fuel management by tabu search

Abstract

Optimization of the arrangement of fuel assemblies and burnable poisons when reloading pressurized water reactors has, in the past, been performed with many different algorithms in an attempt to make reactors more economic and fuel efficient. The use of the tabu search algorithm in tackling reload core design problems is investigated further here after limited, but promising, previous investigations. The performance of the tabu search implementation developed was compared with established genetic algorithm and simulated annealing optimization routines. Tabu search outperformed these existing programs for a number of different objective functions on two different representative core geometries.

<b>Combination of optimization techniques to find of processing optimal condition of postharvest broccoli by vacuum cooling process

“…Since when it was developed by Glover (1989), the tabu search is widely used in logistics problems, with restrictions mainly on vehicle routing, as cited in the work of Chaves, Biajoli, Mine, and Souza (2007), Ma, Hao, and Wang (2017) and Silvestrin and Ritt (2017). However, because to its easy use, the tabu search has been applied in several fields, such as in the modeling of chemical reactions and polymerization of molecules in the area of chemistry (Anand, Rao, & Venkateswarlu, 2015;Nandi, McAnanama-Brereton, Waller, & Anoop, 2017), in obtaining of PID controller and Mimo systems in telecommunications (Ateş & Yeroglu, 2016;Karthikeyan & Saraswady, 2018), in the control of data flow in the computer science (Michalska, Zufferey, & Mattavelli, 2016), in product development and design in the industrial engineering (Bożejko, Gnatowski, Pempera, & Wodecki, 2017;Soto, Rosarius, Rieger, Chen, & Adey, 2017), in nuclear power management (Hill & Parks, 2015) and in the control of cash flow in the economic area (He, He, Liu, & Wang, 2017).…”

“…Simulation was performed in a Software Matlab Release 2007 ® installed on an Intel CPU (Pentium Dual Core 2 Duo Intel with 1.86 GHz). To solve the problem of freezing process optimization of broccoli, we have configured the tabu list array equal to TL = [x 1 , x 2 , x 3 , x 4 , W loss , T end , Profit, Error] and the tabu search was configured as follows (Hill & Parks, 2015):…”

Application of genetic algorithms in optimization of SFR nuclear reactor design

“…GAs implement natural selection mechanisms and the principle of heredity to solve complex optimization problems. They are especially useful in the design process, as they are universal, simple to implement, and global, unlike other popular methods; therefore, GAs were used in several studies related to nuclear engineering [13][14][15][16][17][18].…”

Validation of PWR-Fuel Code for Static Parameters in the LWR Core Benchmark

“…In-core fuel management covers activities of core configuration building, burn up determination, operation cycle duration and fuel loading pattern in order to fulfill the nuclear safety by providing enough shut down margin and economical operation in a long duration of operation cycle. There are several methods which have been developed globally for those purposes [10][11][12][13].…”