Custom Search
Blade Dampers and Noise Generation
Noise generated in blade dampers
Sponsored Links
The noise generated in a single opposed blade damper can be estimated from the chart below:
- (1 mm water H2O) = (9.81 Pa) = (9.81 N/m2) = (1 kg/m2) = (0.0736 mm mercury) = (0.9677 10-4 atm) = (0.00142 psi)
The noise level generated depends on the volume flow through the damper and can be corrected using the table below
| Volume Flow (m3/h) |
Noise Correction (dB) |
| 100 | -10 |
| 200 | -7 |
| 500 | -3 |
| 1000 | 0 |
| 2000 | 3 |
| 4000 | 6 |
| 8000 | 9 |
| 16000 | 17 |
Sponsored Links
Related Topics
- Acoustics - Room acoustics, acoustic properties - decibel A, B and C - Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity, attenuation and more ..
- Noise and Attenuation - Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems
Sponsored Links
Related Documents
- Adding Decibels - The logarithmic decibel scale is convenient calculating sound power levels and sound pressure levels for two or more sound sources
- Fans and Noise Power Generation - Sound Power Level from a fan depends on motor power, capacity, static pressure and discharged volume
- Rotary Heat Exchanger - Noise Attenuation - Sound attenuation in rotating heat exchangers
- Sound Power - Sound Power Level and the Sound Power from some common sources as fans, jet engines, cars, humans and more ..
- Sound Power, Intensity and Pressure - An introduction to decibel, sound power, sound intensity and sound pressure
