BSH

Noise Mitigation Screen (IHC-NMS)

  • pipe-in-pipe system (impedance difference)
  • near-to-pile Noise Abatement System
  • applications until 40 m and pile diameters of ≤ 8,0 m
  • several hundred offshore applications

    Noise reduction is independent of:

  • current (until 0.75 m/s)
  • direction
  • water depth / bathymetry

Advantages:

  • pile-sleeve integrated
  • inclination measurement of the pile possible
  • positioning tool integrated

Disadvantages:

  • size and mass (logistics)
  • soil couplings
  • applications in variable water depths?

Offshore-suitable Noise Abatement System.

Achieved noise reduction for the Sound Exposure Level (SEL resp. LE):

Broadband insertion loss ΔSEL [dB]
MinimalMedianMaximal
131517