This paper describes a test program that was developed to measure the dynamic response of a bundle of steam generator U-tubes with anti-vibration bar (AVB) supports, subjected to Freon two-phase cross-flow. The tube bundle geometry is similar to the geometry used in preliminary designs for future CANDU steam generators. This test program is one of the initiatives that Atomic Energy of Canada Limited (AECL) is undertaking to demonstrate that the tube support design for future CANDU steam generators meets the stringent requirements associated with a 60-year lifetime. In particular, the tests will address issues related to in- and out-of-plane fluidelastic instability and random turbulent excitation of a U-tube bundle with AVB supports. Therefore, the measurements include tube vibration amplitudes and frequencies, work-rate due to impacting and sliding motion of the tubes against their supports, bulk process conditions and local two-phase flow properties. Details of the test rig setup and the measurement techniques are described in the paper. Moreover, a numerical prediction of the U-tube vibration response to flow was performed with AECL’s pipo-fe code. A summary of the numerical results is presented.
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February 2012
Research Papers
Experimental and Numerical Characterization of Flow-Induced Vibration of Multispan U-tubes
Atef Mohany,
Atef Mohany
Atomic Energy of Canada Limited (AECL), Inspection,
e-mail: amohany@unb.ca
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
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Victor P. Janzen,
Victor P. Janzen
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
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Paul Feenstra,
Paul Feenstra
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
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Shari King
Shari King
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
Search for other works by this author on:
Atef Mohany
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
e-mail: amohany@unb.ca
Victor P. Janzen
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
Paul Feenstra
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
Shari King
Atomic Energy of Canada Limited (AECL), Inspection,
Monitoring and Dynamics Branch
, Chalk River Laboratories, ON, K0J 1P0, Canada
J. Pressure Vessel Technol. Feb 2012, 134(1): 011301 (9 pages)
Published Online: December 1, 2011
Article history
Received:
July 27, 2010
Revised:
July 7, 2011
Online:
December 1, 2011
Published:
December 1, 2011
Citation
Mohany, A., Janzen, V. P., Feenstra, P., and King, S. (December 1, 2011). "Experimental and Numerical Characterization of Flow-Induced Vibration of Multispan U-tubes." ASME. J. Pressure Vessel Technol. February 2012; 134(1): 011301. https://doi.org/10.1115/1.4004796
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