Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Characteristics of Heat Exchanger Tube Bundles in Two-Phase Cross-Flow

2상 횡유동을 받는 열교환기 관군의 진동특성

  • 김범식 (한국원자력연구소, 보조장치기계분야) ;
  • 박태철 (한국원자력연구소 울진3,4호기 기술관리실)
  • Published : 1994.06.01
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Abstract

Two-phase cross-flow exists in many shell-tube heat exchangers such as nuclear steam generators, condensers and reboilers. An understanding of damping and of flow-induced vibration excitation mechanisms in necessary to avoid problems due to excessive tube vibration. In this paper, we present the results of experiments on normal-triangular tube bundles of pitch to tube diameter ratio, p/d, 1.22, 1.32 and 1.47. The bundle were subjected to air-water mixtures to simulate realistic mass fluxes and vapour qualities corresponding to void fractions from 5 to 99%. Damping, fluidelastic instability and turbulence- induced excitation are discussed. The behaivior of damping and two vibration mechanisms are different for intermittent flows from for bubbly flows. The effect of pitch to tube diameter ratio and void fraction is dominant on damping and fluidelastic instability.

Keywords

References

  1. Flow-Induced Vibration, ASME PVP v.104 Experimental Determination of Single and Two-Phase Cross Flow-Induced Forces Taylor,C.E.;Pettigrew,M.J.;Axisa,F.;Villard,B.
  2. Paper No. 424, International Symposium on Vibration Problems in Industry Experimental Studies on Flow-Induced Vibration to Support Steam Generator Design, Part Ⅲ: Vibration of Small Tube Bundles in Liquid and Two-Phase Cross-Flow Pettigrew,M.J.;Gorman,D.J.
  3. ASME Journal of Engineering for Power v.103 Vibration in Nuclear Heat Exchangers Due to Liquid and Two-Phase Flow Heilker,W.J.;Vincent,R.Q.
  4. Paper 1.9, Proceedings of 3rd Conference on Vibration in Nuclear Plants v.1 Flow-Induced Vibration of Tube Bundles in Two-Phase Cross-Flow Remy,R.M.
  5. ASME PVP v.63 An Experimental Study on Exciting Force by Two-Phase Cross-Flow, Flow-Induced Vibration of Circular Cylinder Structures Nakamura,T.;Kanazawa,H.;Sakata,K.
  6. ASME PVP v.63 Two-Phase Cross-Flow-Induced Forces Action on a Circular Cylinder, Flow-Induced Vibration of Circular Cylindrical Structures Hara,F.
  7. Paper B1/2, 8th International Conference on Structural Mechanics in Reactor Technology Vibration of Tube Bundles Subjected to Steam-Water Cross-Flow : A Comparative Study of Square and Triangular Array Axisa,F.;Boheas,M.A.;Villard,B.
  8. ASME J. of Heat Transfer v.101 Two-Phase Flow on the Shell-Side of a Segmentally Baffled Shell-andlTube Heat Exchanger Grant,I.D.R.;Chisholm,D.
  9. Proceeding of the Symposium on Flow-Induced Vibration in Heat Exchanger, ASME Winter Annual Meeting Fluidelastic Vibration of Tube Arrays Excited by Cross-Flow Connors,H.J.
  10. Power Industry Research v.1 Flow-Induced Vibration Phenomena in Nuclear Power Station Components Pettigrew,M.J.
  11. ASME J. of Pressure Vessel Technology v.111 Vibration of Tube Bundles in Two-Phase Cross-Flow-Part 3 : Turbulence Induced Excitation Taylor,C.E.;Pettigrew,M.J.;Currie,T.G.;Kim,B.S.