Estimation of Axial DNBR Distribution at the Hot Pin Position of a Reactor Core Using Fuzzy Neural Networks
スポンサーリンク
概要
- 論文の詳細を見る
The pressurized water reactor (PWR) generally operates in the forced convection or nucleate boiling regime. However, if the fuel rod is operating at a high power density, the nucleate boiling that is characterized by extremely high heat transfer rates becomes film boiling with severely reduced heat transfer capability, which is called Departure from Nucleate Boiling (DNB). In this work, the axial DNB Ratio (DNBR) distribution at the hot pin position is predicted by the fuzzy neural networks using the measured signals of the reactor coolant system. The fuzzy neural network is a fuzzy inference system equipped with a training algorithm. The fuzzy neural network is trained by a hybrid method combined with a back-propagation algorithm and a least-squares algorithm. The proposed method is applied to the first cycle of the Yonggwang 3 nuclear power plant. The relative 2-sigma error averaged for 13 axial locations of the hot rod is 1.97%. The fuzzy neural networks estimate DNBRs more accurately at central parts that have relatively lower DNBR values which are more important in safety aspects. From these simulation results, it is known that this algorithm can provide reliable protection and monitoring information for the nuclear power plant operation and diagnosis by accurately predicting the DNBR each time step.
- 社団法人 日本原子力学会の論文
- 2004-08-25
著者
-
Na Man
Department Of Nuclear Engineering Chosun University
-
SHIN Sun
Department of Nuclear Engineering, Chosun University
-
LEE Sun
Department of Nuclear Engineering, Chosun University
-
JUNG Dong
Department of Nuclear Engineering, Chosun University
-
LEE Kibog
Korea Atomic Energy Research Institute
-
LEE Yoon
Department of Nuclear and Energy Engineering, Cheju National University
-
Lee Yoon
Department Of Nuclear And Energy Engineering Cheju National University
-
Lee Yoon
Department Of Anesthesiology And Pain Medicine Asan Medical Center University Of Ulsan College Of Me
-
Lee Sun
Department Of Biological Scienceand Basic Science Research Institute Sungkyunkwan University
-
Lee Sun
Department Of Nuclear Engineering Chosun University
-
Jung Dong
Department Of Nuclear Engineering Chosun University
-
Shin Sun
Department Of Nuclear Engineering Chosun University
関連論文
- Optimal Placement of a Superior Vena Cava Cannula in Minimally Invasive Robot-Assisted Cardiac Surgery
- Estimation of Axial DNBR Distribution at the Hot Pin Position of a Reactor Core Using Fuzzy Neural Networks
- Crystal Structure of 8-Tosyloxyquinoline
- Crystal Structure of 1, 4-Bis(2-benzyl alcohol)-1, 4-dithiabutane
- Differential Expression of ADC mRNA during Development and upon Acid Stress in Soybean (Glycine max) Hypocotyls
- Purification and Characterization of Arginine Decarboxylase from Soybean (Glycine max) Hypocotyls
- Protective Effects of Panduratin A against Oxidative Damage of tert-Butylhydroperoxide in Human HepG2 Cells(Pharmacology)
- Orientational Dependence of Electro-optic Properties of SrBi_2Ta_2O_9 Ferroelectric Thin Films
- Growth of the Hyperthermophilic Marine Archaeon Aeropyrum pernix in a Defined Medium(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)
- Synthesis and Properties of Triblock Copolymers from L-Lactide and Trimethylene Carbonate