DNV okays Hanwha Ocean’s rotor sail technology

Classification society DNV has awarded type approval design certification (TADC) for innovative rotor sail technology designed by South Korean shipbuilding major Hanwha Ocean.

The TADC, issued by DNV, confirms that Hanwha Ocean’s rotor sail, designed with composite materials, is in line with DNV and international safety standards, guidelines and regulations and ready for practical application on commercial vessels.

The approval also covers the installation of the rotor sail in hazardous zones onboard vessels, for example on tankers and vessels carrying explosive liquids, gases, and dangerous cargo.

The certification process involved detailed design reviews and assessments, ensuring that the rotor sail meets the rigorous standards for real-world deployment.

This is the first certification of a rotor sail approved for installation in hazardous zones in South Korea, DNV noted.

“Receiving this certification from DNV is a major milestone for us. It validates the safety and effectiveness of our rotor sail technology. We are committed to continuing our work on eco-friendly solutions that provide shipowners with confidence in choosing Hanwha Ocean products,” Hanwha Ocean, said.

Vidar Dolonen, the Regional Manager at DNV Korea and Japan, added that with the growing demand for solutions to enhance energy efficiency, decrease emissions, and mitigate the commercial impact of using low and carbon-neutral fuels, innovations such as Hanwha Ocean’s rotor sails could offer immediate and tangible benefits.

He mentioned that their collaboration on these rotor sail technologies expands the reach of these solutions and highlights their mutual commitment to decarbonizing shipping.

To remind, Hanwha Ocean recently received approval in principle (AiP) for the design of a cargo containment system and an 80,000 cbm liquid hydrogen (LH2) carrier from DNV.