Magnus Harrold ECR-TG - IOWTC

Magnus Harrold ECR-TG - IOWTC

The travel fund I received from PRIMaRE supported my attendance at the first American Society of Mechanical Engineers’ (ASME) International Offshore Wind Technical Conference (IOWTC) in San Francisco, where I presented a paper in the moorings and foundations scientific track. The conference was attended by international technical experts from academia and industry, with some of the keynote presentations from local delegates outlining the growing US offshore wind market.

My current research explores the usage of an Intelligent Mooring System (IMS) for floating offshore wind turbines (FOWT). The IMS is a hydraulic-based component that has a functionality akin to a shock absorber. Its purpose is to reduce fatigue and peak line loads in FOWT mooring systems, minimising the requirements, and hence cost, of this sub-system. Existing FOWT mooring systems are based on designs from the oil and gas industry, leading to a degree of conservatism and unnecessary high cost. Reports from industry have highlighted the mooring system as a key cost-reduction area that needs to be addressed in order to improve the levelised cost of energy (LCoE) of FOWT.

The research I presented at IOWTC highlighted the feasibility of the IMS for FOWT. By using the FAST-OrcaFlex interface to model FOWTs, the IMS was incorporated into the mooring systems of the NREL OC3 and OC4 floating platforms. The simulation results suggested that the inclusion of the IMS reduces peak line loads by 18%, when compared with the default FOWT mooring arrangements.
Presenting at IOWTC not only provided an excellent platform to disseminate this research, but it also provided an invaluable opportunity to form new relationships with academia and industry. Potential collaborations to support this research are now being explored with many of these new contacts.

Engineering and Physical Sciences Research Council

This project has received funding from the Engineering and Physical Sciences Research Council under grant agreement EP/P026109/1