1.6 EQUIPMENT GENERATED NOISE

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Noise is generated by some common methods

Estimation factor for noise generation [source Irwin and Graf]

There are other sources that are noisy, but not suited to simple factors,

- fans

- electric motors

- pumps

- air compressors

- construction equipment

- household appliances

A table of relationships for common equipment is given, [Irwin and Graf]

Some general levels of sound power for industrial equipment are given below for frequency ranges from 500-4000Hz.

Sound levels are given below that are typically generated by home appliances (500 to 4000Hz)