The noise of the compressor
Each type of compressor produces a different type of sound, mainly because of its principle (piston, centrifugal, scroll and others) and it will also depend on its design and production. In General:
- Piston compressors produce more noise at low frequencies than the rotation type.
- The noise of engines compressors is located in the middle of the frequency band.
- Noise in the high frequency bands is due to compression of the gas and flow rate.
- Noise level depends on the operating conditions.
On Fig. 31.2 the United frequency noise levels for normal scrolling and semi-hermetic reciprocating compressors are shown. This is only General trends and manufacturer's data, you should always go for specific information.
..
|