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VIDEO: How holes in a propeller reduce underwater noise

VIDEO: How holes in a propeller reduce underwater noise

by Mariska Buitendijk | Jan 6, 2023 | Emissions, News, Ship propulsion, Shipping

Oscar Propulsion and the University of Strathclyde have developed technology that substantially reduces the underwater radiated noise generated by ships’ propellers. The patented PressurePores system reduces propeller tip vortex cavitation by applying a small number...
IFAW argues for speed limit for ships in EU waters

IFAW argues for speed limit for ships in EU waters

by Mariska Buitendijk | Oct 31, 2022 | Emissions, Maritime regulations, Maritime research, News, Shipping

A speed limit for commercial ships in European Union waters could bring an estimated EUR 3.4-4.5 billion in socioeconomic benefits. In addition, it reduces underwater noise, the risk of ships colliding with whales and greenhouse gas emissions. This follows from a...
Heerema to install 64 He Dreiht XL monopiles

Heerema to install 64 He Dreiht XL monopiles

by Mariska Buitendijk | Apr 27, 2022 | News, Offshore wind

Heerema Marine Contractors has won an offshore wind foundation installation contract for EnBW’s He Dreiht offshore wind farm. The work includes the transport and installation of 64 monopiles and transition pieces. During operations, Heerema will use the IHC IQIP...
Green dynamic positioning system saves fuel and reduces noise

Green dynamic positioning system saves fuel and reduces noise

by Mariska Buitendijk | Jun 21, 2021 | Emissions, News

RH Marine has developed a new green dynamic Positioning (DP) system, which optimises the fuel consumption of generators and thrusters. As a result, ships can sail more efficiently and save fuel. By switching completely to batteries, the DP system also enables vessels...
DNV GL judges Heerema’s Silent Foundation concepts to be feasible

DNV GL judges Heerema’s Silent Foundation concepts to be feasible

by Mariska Buitendijk | Jan 25, 2021 | News

Heerema has been working on developing “silent foundations” that can be installed without loud hammering, which can be harmful to marine life and requires noise mitigation systems that produce a considerable CO2 footprint. DNV GL has now awarded a...
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