Singapore-headquartered tanker operator Hafnia will install Danish technology group Wärtsilä’s EnergoFlow and EnergoProFin technologies on 10 bird-class oil and chemical tankers
Wärtsilä said the combination of the two systems improve propulsion efficiency by altering water flow through the vessels’ propellers. The order was booked by Wärtsilä in October 2023.
"EnergoFlow is a pre-swirl stator that creates an optimal inflow for the propeller, reducing fuel consumption and emissions in all operating conditions. The EnergoProFin is an energy-saving propeller cap with fins that rotate together with the propeller. It reduces the energy losses created by the propeller hub vortex, increasing overall propulsion efficiency and significantly reducing underwater noise," the company said.
The systems aim to improve the vessels’ fuel efficiency, reducing emisions and operating costs and improving Carbon Intensity Indicator (CII) ratings and Energy Efficiency Existing Ship Index (EEXI) values.
“There are many benefits to be gained by improving the operating efficiency of our vessels’ propulsion systems and we look forward to having these innovative Wärtsilä solutions installed,” said Hafnia executive vice president and technical director Ralph Juhl.
“Wärtsilä’s OPTI Design methodology takes advantage of computational fluid dynamics along with our extensive in-house know-how. The EnergoProFin propeller cap and EnergoFlow pre-swirl stator work together to deliver meaningful fuel savings and better environmental performance, which are key ambitions for today’s leading operators,” commented Francois Emin, Product Manager – Propulsion, Wärtsilä.
The Wärtsilä equipment is scheduled to be delivered starting in 2024. The project will be carried out over a two-year period for the 10 vessels, according to the companies.
Riviera Maritime Media’s Maritime Decarbonization Conference, Americas will be held 14-15 December 2023 in Houston, USA. Use this link for further information and to register your interest
© 2023 Riviera Maritime Media Ltd.