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Vol.3 No.1 previous GA 17 - AA 34 - 35 - NT 36 - 37-38next Vol.3 No.3
Academic Articles
Review Paper Vol.3No.2 (2011) p.54 - p.77
 

Computational Challenges in Numerical Simulations of ISI of Ferritic Steam Generator Tubes in Fast Breeder Reactors using Eddy Currents and Multi-frequency Algorithms

 
Ovidiu MIHALACHE,Toshihiko YAMAGUCHI,Masashi UEDA
 
Japan Atomic Energy Agency, Fast Breeder Reactor Plant Engineering Research Center, Operation and Maintenance Technology Development Group, 1 Shiraki, Tsuruga-shi, Fukui-ken, 919-1279, Japan
 
Abstract
In the present paper are addressed the challenges of three dimensional (3D) simulations of ISI of ferritic SG tubes in FBR using ECT. The performance of 3D computation is analyzed for a specific FBR case, where there is a simple or complex tube support plate (SP) structure with one or multiple tubes connected to it, and sodium, which generates an additional noise in the ECT signal. Signal enhancement by means of multi-frequency ECT techniques are validated through 3D simulations of both signals and noise due to sodium forms around SG tube or SP.
 
Keywords
eddy currents, steam generator, fast breeder reactor, sodium, in-service inspection, finite element method, multi-frequency, support plate
 
Full Paper: PDF EJAM Vol.3No.2 pp.54-77 "Computational Challenges in Numerical Simulations of ISI of Ferritic Steam Generator Tubes in Fast Breeder Reactors using Eddy Currents and Multi-frequency Algorithms
Article Information
Article history:
Received 12 May 2011
Accepted 21 July 2011