New Methodology of Modal Analysis for a Dual Cooled Fuel Rod with and without Water in a Flow Channel

Author

Kim, JaeYong ; Lee, KangHee ; Yoon, KyungHo ; Kim, HyungKyu ; Ko, SungHo

Author_Institution

LWR Fuel Technol. Div., Korea Atomic Energy Res. Inst., Daejeon, South Korea

fYear

2011

fDate

20-23 June 2011

Firstpage

247

Lastpage

249

Abstract

To compare the effects of water inside on outside of a hollow cylinder of dual cooled fuel rod, a new methodology of modal analysis is suggested and verified by experiments. When mass of water inside and outside the rod is the same, the latter decreases natural frequencies further than the former does. In this paper, we describe the method in detail and explain the variation of the dynamic properties according to the ratio of the mass of water inside to outside of a dual cooled fuel rod.

Keywords

fission reactor cooling; fission reactor fuel; fission reactor instrumentation; fission reactor theory; light water reactors; PWR fuel; dual cooled fuel rod; dynamic properties; flow channel; fluid structure interaction; hollow cylinder; modal analysis; stationary water; Electron tubes; Finite element methods; Fluids; Fuels; Modal analysis; Solids; Vibrations; Dual cooled fuel(DUO); Fluid Structure Interaction(FSI); Modal analysis; Stationary water;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Science and Its Applications (ICCSA), 2011 International Conference on

Conference_Location

Santander

Print_ISBN

978-1-4577-0142-9

Type

conf

DOI

10.1109/ICCSA.2011.65

Filename

5959630