Finland-based marine expertise group Wärtsilä will provide its EnergoFlow and EnergoProFin options for ten Bird Class oil and chemical tankers owned by the Singapore-based world tanker operator Hafnia.
“The combination of the two Wärtsilä systems ensures an optimized waterflow over and after the propeller, thereby improving propulsion efficiency considerably. The order was booked by Wärtsilä in October 2023,” Wärtsilä stated.
According to Wärtsilä, EnergoFlow is an modern pre-swirl stator that creates an optimum influx for the propeller, lowering gasoline consumption and emissions in all working circumstances.
The EnergoProFin is an energy-saving propeller cap with fins that rotate along with the propeller. It reduces the power losses created by the propeller hub vortex, rising total propulsion effectivity and considerably lowering underwater noise, Wärtsilä stated.
Wärtsilä will provide its EnergoFlow and EnergoProFin options for ten Bird Class oil and chemical tankers owned by Hafnia – ©Wärtsilä Corporation
By enhancing the vessels’ gasoline effectivity, emissions are lowered, working prices are lowered, and each the Carbon Intensity Indicator (CII) ranking and Energy Efficiency Existing Ship Index (EEXI) worth are improved, Wärtsilä defined.
“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,” stated Ralph Juhl, EVP, Technical Director at Hafnia. “At Hafnia we are working hard to decarbonize our operations and these retrofitted solutions will support this commitment.”
“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 tools is scheduled to be delivered beginning in 2024. The mission will probably be carried out over a two-year interval for the ten vessels.
