✦ LIBER ✦
Predicting flow induced vibration in u-bend regions of heat exchangers: an engineering solution
✍ Scribed by Krishna P. Singh
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 623 KB
- Volume
- 302
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
From the standpoint of flow induced vibrations, U-bends of tubular heat exchangers constitute structurally one of the most vulnerable regions. The U-bends possess relatively low our-of-plane frequency enabling them to extract energy from the shell stream at low flow velocities. All published correlations in the literature imply the existence of a direct relationship between the flow velocities and the incidence of large amptitude tube vibrations. Hence it is important to determine the velocity profile in the U-bend region accurately. A method to obtain a'k engineering solution is proposed herein which may be utilized in conjunction with the available c,orrelations to reliably predict the possibility of vibration. Determination of the flow profile may be further utilized to improve the
estimates of shellside heat transfer coefficients.