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3. Vibrations
Vibration is an essential parameter to take into account when designing a heat exchanger, in the same way as heat transfer or pressure drop. In addition to the classical aspects (shocks, vibration spectrum) originating from the external environment, heat exchangers induce their own vibrations under the effect of the fluid flowing through them. This section deals mainly with the dynamic forces caused by the fluid and their repercussions on the tubes in a shell-and-tube exchanger; this vibratory aspect is rarely, if ever, encountered in other exchangers.
Depending on the flow velocity of the fluid on the calender side, the tubes, vibrating at their own frequencies, can move sufficiently to collide. This can lead to fatigue, leakage or rupture. There is also the possibility of tubes interacting with baffles, and at junctions...
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Vibrations
Regulatory aspects
Bibliography
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Heat Exchanger Fouling and Cleaning VII, Schladming, Austria, June 14-19 (2009) – Held every two years.
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European standards
- Échangeurs thermiques. Terminologie Ce document donne une terminologie des échangeurs thermiques permettant des termes cohérents. Elle a été établie à partir d'une analyse des critères fondamentaux relatifs à la conception, la réalisation et le mode d'exploitation des échangeurs thermiques - NF EN 247 - 12-97
- Échangeurs thermiques. Définition de la performance des échangeurs...
Regulations
Law no. 571 of October 28, 1943, as amended, concerning steam pressure vessels used on land and gas pressure vessels used on land or on board inland navigation vessels.
Decree of April 2, 1926, as amended, regulating steam engines other than those on board ships.
Decree no. 63 of January 18, 1943, as amended, regulating gas pressure equipment
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