Reduces noise and fatigue in Offshore Wind Monopile Installation
PULSE® is an innovative add-on to the Hydrohammer®, designed to enhance noise mitigation during offshore monopile installations. It consists of two pistons in a housing with a column of fluid in between. This fluid-filled volume allows PULSE to control impact characteristics, reducing noise at the source and protecting marine life.
PULSE is a dampening system (add-on) positioned between a hydraulic hammer (Hydrohammer) and its sleeve. It reduces noise significantly at source, supporting environmentally-friendly installation. PULSE was nominated for an Offshore Energy Award 2019 in the ‘Best innovation’ category.
Due to its placement, PULSE can easily be combined with other underwater noise mitigating measures. One such is IQIP’s Integrated Monopile Installer, which directly mitigates noise by shielding the pile with a double-walled steel tube into which a bubble curtain can be fed. In most cases, the combination of those two systems would eliminate the need for a Big Bubble Curtain (BBC).
The liquid between the pistons can be drained to transform the system into a conventional Hydrohammer. A PULSE system without any liquid in the volume between the top and bottom piston corresponds to PULSE in zero-mode while the maximum mode features a fully filled liquid volume. This means the system eliminates the need for the safety margins a pre-set system would necessitate; instead, it can adjust to ensure maximum noise reduction and optimum drivability of the pile in different locations and soil strengths.
To date, the IQIP PULSE system has been deployed on 74 monopiles in various offshore wind installation projects. PULSE has proven effective in offshore wind projects such as Arcadis Ost 1, where soil conditions were particularly challenging.
IQIP is developing PULSE for all hammer sizes in Offshore Wind, Oil & Gas and Coastal & Civil markets. Modelling and results of applications are available for optional combination of PULSE and other mitigation techniques tailored for specific project conditions.
IQIP, at the forefront of innovation and experience, offers comprehensive support for the PULSE system, Hydrohammer, sleeves, hoses, umbilical, hydraulic winches, and powerpacks. Our service engineers are available 24/7 for support, maintenance, or spare parts for your Hydrohammer, either manually or remotely.
For more information about PULSE, please contact us.
Need to reduce noise during installation and comply with regulations despite increasing pile sizes and installation energy? Our PULSE technique has you covered!
For tailored advice, contact us today!
We know that your projects take place in challenging environments globally, and sometimes, you need the support and guidance of a partner. That’s why we are here to support you. We provide high-quality services all around the world with personal assistance through our 24/7 service for all our customers. It doesn’t matter what environment you’re working in, or where your project is located, we will be ready to help you and offer you a solution. This means that in case of a breakdown, our service team will be ready to provide you with the most appropriate solution.
Piling for offshore installations in Europe is restricted by precautionary regulations for underwater noise and its effect on sea life. This limitation during construction increases the cost price. IQIP has found a way for you to enlarge your installation window and reduce costs with innovative technology for effective noise mitigation. For more information on noise mitigation challenges and solutions see this video: Noise mitigation challenges and solutions in Offshore Wind – YouTube
