Acoustic Resonance in Heat Exchanger Tube Bundles—Part II: Prediction and Suppression of Resonance

1987 ◽  
Vol 109 (3) ◽  
pp. 282-288 ◽  
Author(s):  
R. D. Blevins ◽  
M. M. Bressler
Keyword(s):  
Experimental Data ◽  
Heat Exchanger ◽  
Vortex Shedding ◽  
Empirical Model ◽  
Acoustic Resonance ◽  
Heat Exchanger Tube ◽  
Tube Bundles ◽  
Semi Empirical ◽  
Exchanger Tube

In the first part of this series, experimental data were presented which suggest that the acoustic resonance in heat exchanger tube bundles is tied to periodic vortex shedding from the tubes. In this paper, a semi-empirical model for predicting the onset of resonance is developed. This model is compared with experimental data and other models from the literature. Methods of suppressing the resonance are developed and experimental data on their effectiveness are presented.

Acoustic Resonance in Heat Exchanger Tube Bundles—Part I: Physical Nature of the Phenomenon

1987 ◽  
Vol 109 (3) ◽  
pp. 275-281 ◽  
Author(s):  
R. D. Blevins ◽  
M. M. Bressler
Keyword(s):  
Heat Exchanger ◽  
Gas Flow ◽  
Tube Bundle ◽  
Physical Nature ◽  
Transverse Mode ◽  
Acoustic Resonance ◽  
Heat Exchanger Tube ◽  
Sound Levels ◽  
Tube Bundles ◽  
Exchanger Tube

The intense acoustic resonance resulting from gas flow across a bank of heat exchanger tubes in a duct has been investigated experimentally and theoretically. At low gas velocities, the acoustic tone emanating from tube bundles increases in proportion to the flow velocity. When the frequency approaches a bound acoustic transverse mode of the tube bundle, intense sound can result. Sound levels as high as 173 db were measured within the bundle. During resonance, the sound correlates vortex shedding from the tubes and the pressure drop increases in some bundles.

scholarly journals 849 Modeling Method of Vortex Shedding Synchronization in Heat Exchanger Tube Banks on Acoustic Resonance

2012 ◽  
Vol 2012 (0) ◽  
pp. _849-1_-_849-8_
Author(s):  
Hiromitsu HAMAKAWA ◽  
Eiichi NISHIDA ◽  
Tatsuaki NAKAMURA ◽  
Kenta ASAKURA ◽  
Eru KURIHARA
Keyword(s):  
Heat Exchanger ◽  
Vortex Shedding ◽  
Acoustic Resonance ◽  
Modeling Method ◽  
Heat Exchanger Tube ◽  
Tube Banks ◽  
Exchanger Tube

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

2010 ◽  
Vol 132 (4) ◽  
Author(s):  
Frantisek L. Eisinger ◽  
Robert E. Sullivan
Keyword(s):  
Heat Exchanger ◽  
Steam Generator ◽  
Vortex Shedding ◽  
Acoustic Resonance ◽  
Heat Exchanger Tube ◽  
Tube Bank ◽  
Tubular Heat Exchanger ◽  
Acoustic Modes ◽  
Tube Banks ◽  
Exchanger Tube

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.

Statistical Analysis for Partial Inspection of Heat Exchanger Tube Bundles

2014 ◽  
Author(s):  
M. Alathba ◽  
R. Jones ◽  
N. Laycock ◽  
F. Hoeve ◽  
A. Ostrowska ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Heat Exchanger ◽  
Heat Exchanger Tube ◽  
Tube Bundles ◽  
Exchanger Tube

scholarly journals Evaluation of the Ratio of Heat Exchanging Tube Finning on Heat Exchanger Efficiency

2021 ◽  
Vol 346 ◽  
pp. 03028
Author(s):  
Mihail Khizhov ◽  
Lubov Mironova
Keyword(s):  
Heat Exchanger ◽  
Full Scale ◽  
Heat Exchanger Tube ◽  
Tube Bundles ◽  
Exchanger Tube

For the purpose of thermal and hydraulic and aerodynamic testing of the heat exchanger tube bundles, various full-scale tube specimens with different finning ratio have been proposed. Formulas that allow to evaluate the effect of the ratio of heat exchanging tube finning on the heat exchanger efficiency are presented.

Sign in / Sign up

Export Citation Format

Share Document