Rotary Heat Exchanger Noise Attenuation
Reference data and engineering information about rotary heat exchanger noise attenuation for acoustics applications.
rotaryheatexchangernoise
Overview
Engineering reference data for Rotary Heat Exchanger Noise Attenuation in acoustics.
Key Formulas
Speed of Sound
Speed of sound in an ideal gas.
Sound Level
Decibel level.
Wavelength
Wavelength = speed / frequency.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Speed of sound | m/s | |
| Sound level | dB | |
| Wavelength | m | |
| Frequency | Hz |
Noise Attenuation Frequency Data
8 rows
Frequency(Hz) | Attenuation(dB) |
|---|---|
| 63 | 2 |
| 125 | 2 |
| 250 | 3 |
| 500 | 4 |
| 1000 | 5 |
| 2000 | 7 |
| 4000 | 8 |
| 8000 | 9 |
Source: engineeringtoolbox.com
:::note Note that larger inlet or outlet chambers should be calculated separately. :::