Scale Model Test on Inexperienced Acoustic Vibrations Occurred in the Operation of a Heat Exchanger

In the operation of a tubular heat exchanger, or a gas heater, occurred acoustic vibrations, which could not be suppressed at all by installing baffle plates along the gas flow into the tube bundle of the gas heater. Baffle plates along the gas flow are always very effective in suppression of acoust...

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Bibliographic Details
Published inTransactions of the Japan Society of Mechanical Engineers Series C Vol. 65; no. 640; pp. 4626 - 4632
Main Authors KAWAOKA, Takayoshi, SHIRAKI, Kazuhiro, SATO, Yuichi, TSUBOI, Mamoru, KATAYAMA, Keiichi
Format Journal Article
LanguageJapanese
Published The Japan Society of Mechanical Engineers 25.12.1999
Subjects
Acoustics
Heat Exchanger
Model Test
Noise
Self-Excited Vibration
Tube Bundle
Vibration Coupled With Fluid Motion
Online AccessGet full text
ISSN0387-5024
1884-8354
DOI10.1299/kikaic.65.4626

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Summary:In the operation of a tubular heat exchanger, or a gas heater, occurred acoustic vibrations, which could not be suppressed at all by installing baffle plates along the gas flow into the tube bundle of the gas heater. Baffle plates along the gas flow are always very effective in suppression of acoustic vibrations so far. To clarify the cause of the vibration phenomenon, we built a three-dimensional airflow scale model using the similarity method. Accordingly, violent vibrations took place, which have the same characteristic as the gas heater. We conclude that the model test method we conducted is useful to check the normal operation of a gas heater.
ISSN:0387-5024
1884-8354
DOI:10.1299/kikaic.65.4626