Hydro Sound Damper (HSD)
- resonator system
- near-to-pile Noise Abatement System
- applications until 40 m and pile diameters of ≤ 8,0 m
- several hundred offshore
The noise reduction is independent of:
- current (until 0.75 m/s)
- direction
- water depth / bathymetry
Advantages:
- low mass
- application possible at very different water depths
Disadvantages:
- soil couplings
- lifting- and lowering device are currently project-specific unique pieces
- limited life-time of the HSD-elements according to the manufacturer
- noise reduction mainly in the low-frequency range
Offshore-suitable Noise Abatement System.
Achieved noise reduction for the Sound Exposure Level (SEL resp. LE):
Minimal | Median | Maximal |
---|---|---|
10 | 11 | 12 |