Tube banks located in flow channels and exposed to crossflow have a low resistance to acoustic resonance and vibration in general. Such resistance can be increased substantially by placing acoustic baffles inside the tube banks. The locations and the number of baffles play an important role in the degree of their effectiveness of suppressing acoustic waves. One or two baffles placed within a tube bank will raise the threshold to acoustic vibration significantly. Optimum baffle locations suppressing acoustic resonance and vibration or reducing noise levels at resonance can be determined. A general procedure based on acoustic particle velocity mode shape functions is presented for the evaluation of the acoustic baffle effects.

Issue Section:
Technical Papers
Keywords:
nuclear reactor steam generators, fission reactor design, vibrations, structural acoustics, damping
Topics:
Acoustics, Waves, Vibration, Flow (Dynamics), Mode shapes
1.
Baird
,
R. C.
, 1954, “Pulsation-Induced Vibration in Utility Steam Generation Units,” Combustion, 25(10), pp. 38–44.
2.
Grotz B. J., and Arnold, F. R., 1956, “Flow Induced Vibration in Heat Exchangers,” Department of Mechanical Engineering, Stanford University, Stanford, California, Technical Report No. 31, DTIC 104568.
3.
Chen
,
Y. N.
,
1968
, “
Flow-Induced Vibration and Noise in Tube Bank Heat Exchangers Due to von Karman Streets
,”
ASME J. Eng. Ind.
,
90
, pp.
134
–
146
.
4.
Eisinger
,
F. L.
,
1980
, “
Prevention and Cure of Flow-Induced Vibration Problems in Tubular Heat Exchangers
,”
ASME J. Pressure Vessel Technol.
,
102
, pp.
138
–
145
.
5.
Blevins
,
R. D.
, and
Bressler
,
M. M.
,
1987
, “
Acoustic Resonance in Heat Exchanger Tube Bundles—Part II: Prediction and Suppression of Resonance
,”
ASME J. Pressure Vessel Technol.
,
109
, pp.
282
–
299
.
6.
Sullivan, R. E., Francis, J. T., and Eisinger, F. L., 1998, “Prevention of Acoustic Vibrations in Steam Generator and Heat Exchanger Tube Banks,” ASME PVP-Vol. 363, Flow-Induced Vibrations and Transient Thermal-Hydraulics, Book No. HO1144, pp. 1–9.
7.
Eisinger
,
F. L.
,
Francis
,
J. T.
, and
Sullivan
,
R. E.
,
1996
, “
Prediction of Acoustic Vibration in Steam Generator and Heat Exchanger Tube Banks
,”
ASME J. Pressure Vessel Technol.
,
118
, pp.
221
–
236
.
8.
Tanaka, H., Matuzoe, J., Tanaka, K., and Shimizu, F. 1997, “Analysis of Acoustic Resonant Vibration Having a Mutual Exciting Mechanism (Application to a Real Plant),” ASME AD-Vol. 53-2, Flow Induced Vibration and Noise, pp. 339–346.
9.
Eisinger
,
F. L.
, and
Sullivan
,
R. E.
,
1996
, “
Experience with Unusual Acoustic Vibration in Heat Exchanger and Steam Generator Tube Banks
,”
J. Fluids Struct.
,
10
, pp.
99
–
107
.
10.
Eisinger
,
F. L.
,
1994
, “
Unusual Acoustic Vibration of a Shell and Tube Process Heat Exchanger
,”
ASME J. Pressure Vessel Technol.
,
116
, pp.
141
–
149
.
11.
ANSYS Computer Program, 1994, Release 5.5.1, ANSYS, Inc., Houston, PA.
12.
Beranek, L. L., 1954, Acoustics, McGraw-Hill Book Co., Inc.
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