
These are the sorts of noise sources that operators will detect within 2 hours of installing noisefinder equipment on the laptop.
These are the typical solutions. Typically it is the cumulative effect of a number of noise sources that causes issues
Problem: Hole in a tank |
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Solution: Putting a door to cover the hole. |
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Solution: Installing a chute to facilitate water dropping into the drain. |
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Noise level decreased by 5dBA even though the covers were intended to suppress noise |
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Problem: Motor Cover On |
Solution: Motor Cover Off |
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Safety guards of the effluent tank motor. This guard produced 95 db of noise. Changing to Perspex guard lowered noise level by 20 db. |
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Plant vacuum room vent. The holes in the vents acted as whistles. Changing the holes to slots reduced the noise level by 15 db.
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Factory walkway: |
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Pipes anchored to a polypanel wall caused wall to vibrate and amplify the noise. Isolating the pipe with strips of rubber reduced noise levels by 8 db |
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