It has been found that a single rigid dissipative baffle can be used to prevent the development of acoustic vibration in a crossflow tubular heat exchanger which has an in-line tube arrangement. This paper presents the results of an investigation of the possibility of using a limp porous blanket as a dissipative baffle. The blanket could be woven from ceramic or glass fibre and could be installed in either in-line or staggered tube arrangements. Recommendations are given for the mass per unit area and the specific flow resistance of the blanket.
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