3. Noise reduction
3.1 Helical and helical centrifuges
In view of their very similar acoustic behavior, we've included the noise reduction measures for these two types of fan in the same section.
The reduction of line noise, which is of particular concern at high speeds, typically above 2,500 rpm, is achieved by means derived from the analysis of noise generation mechanisms described above (§
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Noise reduction
Similarity laws and empirical forecasting methods
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"Noise and vibration"
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