KR grants design approval for Hi-Rotor wind system

Rotor sails are cylindrical structures installed on ships’ decks that reduce fuel consumption and carbon emissions by generating additional propulsion using wind. HHI’s Hi-Rotor features the ‘Magnus Effect’, using the pressure differences around the rotor sail to generate propulsion. However, it significantly differs in enhanced stability of the drive system, compared to other products, by applying the reduction gear method to the driving part that connects the electric motor and the rotor.

HHI is planning to complete production of a system in the second half of this year and is concentrating on preparing for a feasibility test, as well as discussing the future commercialization of the system with major ship owners.

With this wind-assisted propulsion system installed onboard, ships can reduce their fuel consumption and carbon emissions by 6-8%.

Back in December 2020, KR granted Approval in Principle for Hi-Rotor. This May, both companies collaborated in hosting a Hazard Identification (HAZID) workshop, to further enhance the safety of the system.