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Technical Briefs

Further Evidence for Acoustic Resonance in Full Size Steam Generator and Tubular Heat Exchanger Tube Banks

[+] Author and Article Information
Frantisek L. Eisinger, Robert E. Sullivan

 Foster Wheeler North America, Inc., Perryville Corporate Park, Clinton, NJ 08809-4000

J. Pressure Vessel Technol 132(4), 044501 (Jul 30, 2010) (4 pages) doi:10.1115/1.4002052 History: Received October 20, 2009; Revised June 16, 2010; Published July 30, 2010; Online July 30, 2010

Acoustic resonance or acoustic vibration, which develops in flow channels containing a tube bank, is caused by vortex shedding generated by crossflow over the tube bank. Transverse acoustic modes are excited, which are perpendicular to the direction of flow and of the tube axes. For the excitation of the acoustic modes resulting in acoustic resonance, two conditions must be met: (a) The frequency of vortex shedding must coincide with the frequency of the particular acoustic mode to be excited, and (b) there must be sufficient energy available to initiate the vibration. If the frequency coincidence is not satisfied or if the excitation energy is insufficient, the acoustic resonance will not be possible. It is important to define the criteria, which need to be met for the initiation of the acoustic resonance. In this paper, new criteria are developed on the basis of the acoustic particle velocity for the onset of acoustic resonance in steam generator and tubular heat exchanger tube banks.

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Copyright © 2010 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Dimensionless acoustic particle velocity vp/fnD versus dimensionless input energy parameter MΔp/po for full size steam generator and tubular heat exchanger in-line tube banks

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Figure 2

Dimensionless acoustic particle velocity vp/fnD versus Mach number M for full size steam generator and tubular heat exchanger in-line tube banks

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Figure 3

Dimensionless acoustic particle velocity vp/fnD versus dimensionless input energy parameter MΔp/po for cold air laboratory tests with in-line tube banks

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Figure 4

Dimensionless acoustic particle velocity vp/fnD versus Mach number M for cold air laboratory tests with in-line tube banks

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Figure 5

Dimensionless acoustic particle velocity vp/fnD versus dimensionless input energy parameter MΔp/po for cold air laboratory tests with staggered tube banks

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Figure 6

Dimensionless acoustic particle velocity vp/fnD versus Mach number M for cold air laboratory tests with staggered tube banks

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