Natural fiber composite for use in offshore wind turbine
In 2020, Greenboats was commissioned by a leading wind energy technology developer to design and manufacture a sustainable NFC nacelle. The resulting 7.3 m long structure has a surface area of approx. 100 m² and was engineered by to satisfy all DNV-GL load cases required for an offshore turbine nacelle, including 200 km/h max. wind loads and 2KN loads on the guard rails.
Sicomin’s DNV-GL type approved bio-based epoxy was used to infuse BComp flax fiber reinforcements and balsa cores, with its intumescent weatherproof gelcoat applied on the outer surface. Cured panels were cut to shape, formed over a male plug and bonded together, before flax reinforcement plies, hand laminated with GreenPoxy resins and vacuum bagged, were added along all the panel joints lines. Finally, Sicomin’s highly UV resistant clear coating products were used to protect and enhance the finish of the flax fiber feature stripe details.