ITS Blog - publications illustrating in-house works carried out in terms of Research and Development in acoustics
Design and calculations of high performance baffle (splitter) silencers
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General information relating to the performance of baffle (splitter) silencers
In the building sector or in an industrial context, noise limitation in air networks is often achieved by means of baffle (splitter) silencers i.e. constructions with a casing (in some cases: constituted by a duct, or an existing chimney flue) and, inside, with sound-absorbing elements (wool or foam with various surfacings and protections depending on the context) held...
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Noise attenuation - Cylindrical dissipative silencer with reduced pressure drop
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General information relating to noise attenuation and pressure drop of dissipative silencers
Whether in the construction sector, or for industrial applications, noise attenuation in fluid networks is often achieved using dissipative silencers. The power of the sound waves is then reduced (mainly) depending on the distance traveled along their path in the open channels i.e. the airways (with on the periphery - and/or in the form of splitters - a packing of sound absorbing material) and also...
Read more: Noise attenuation - Cylindrical dissipative silencer with reduced pressure drop
Design calculations with SILDIS® software for mufflers with perforated pipes for gas flow noise reduction
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Use of mufflers including perforated pipes to reduce gas flow noise
Mufflers including perforated pipes are used in different contexts for reducing gas flow noise (depending on the application: at ambient or variable temperature e.g. very high):
- compressed air networks (at suction and/or discharge)
- exhaust lines from thermal engines >depressurization vents (e.g. steam)
It is the passage of the gas flow through orifices (e.g. such as those resulting from drilling work on the...
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