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Retrofit

Singapore-based Hafnia tankers to be retrofitted with Wärtsilä propulsion efficiency solution

Wärtsilä will supply its EnergoFlow and EnergoProFin solutions for ten Bird Class oil and chemical tankers owned by Hafnia to considerably improve propulsion efficiency.

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Singapore-based Hafnia tankers to be retrofitted with Wärtsilä propulsion efficiency solution

Technology group Wärtsilä on Thursday (23 November) said it will be supplying its EnergoFlow and EnergoProFin solutions for ten Bird Class oil and chemical tankers owned by Hafnia – the Singapore head-quartered global tanker operator. 

The combination of the two Wärtsilä systems ensures an optimised waterflow over and after the propeller, thereby improving propulsion efficiency considerably. The order was booked by Wärtsilä in October 2023.

EnergoFlow is an innovative 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.   

By improving the vessels’ fuel efficiency, emissions are reduced, operating costs are lowered, and both the Carbon Intensity Indicator (CII) rating and Energy Efficiency Existing Ship Index (EEXI) value are improved.

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“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 Ralph Juhl, EVP, Technical Director at Hafnia.

“At Hafnia we are working hard to decarbonise 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,” said Francois Emin, Product Manager – Propulsion, Wärtsilä.

The Wärtsilä equipment is scheduled to be delivered commencing in 2024. The project will be carried out over a two-year period for the 10 vessels.

Photo credit: Wärtsilä 
Published: 24 November, 2023

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Alternative Fuels

Specs Corporation to be official Auramarine sales rep for fuel supply units in South Korea

This includes its conventional systems, as well as its specialist solutions for methanol and ammonia bunker fuels, and will be applicable for newbuildings, retrofits, commissioning and maintenance services.

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Japan: NS United orders methanol-powered bulk carriers

Auramarine, provider of marine fuel supply systems, on Wednesday (15 April) has announced that it has signed a representative agreement with Specs Corporation Ltd., a Korean marine equipment and services provider. 

The firm said the strategic partnership underscores Auramarine’s commitment to delivering solutions to the maritime sector and strengthens the company’s presence in the South Korean market.

Under the terms of the agreement, Specs Corporation will serve as an official Auramarine sales representative for its fuel supply units. This includes its conventional systems, as well as its specialist solutions for methanol and ammonia, and will be applicable for newbuildings, retrofits, commissioning and maintenance services. 

The collaboration will enable Auramarine to leverage Specs Corporation’s extensive network and expertise in providing services to South Korean shipyards, engine manufacturers and ship owners.

John Bergman, CEO of Auramarine, said: “We are delighted to embark on this journey with Specs Corporation as our trusted partner in the important South Korean market.”

“They have been serving engine manufacturers for a long time, have close and collaborative relationships with shipowners and shipyards and a deep knowledge of exactly what is required from fuel supply systems.”

“Importantly, Spec’s established reputation and forward-thinking vision align seamlessly with our own, making them an ideal partner.”

Mr. Leeman Lee, President of Specs Corporation Ltd, also said: “Spec Corporation’s mission is based on providing superior performance, service, and solutions to ensure customer satisfaction.”

“We are delighted to welcome Auramarine to our portfolio of market-leading technologies.”

“We both share the drive to be a part of the energy transition within the industry and this collaboration, which includes fuel supply systems for methanol and ammonia, represents a clear step forward in our commitment to offering cutting-edge solutions to the South Korean maritime industry that drive increased sustainability.” 

Photo credit: Auramarine
Published: 16 May 2024

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Retrofit

Silverstream completes retrofit of air lubrication system for LNGC at Singapore shipyard

Installation completed in 30 days reinforcing the role that Silverstream’s technology can play as a near-term decarbonisation solution for existing ships.

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Silverstream

London-based maritime clean technology firm Silverstream Technologies on Tuesday (9 April) said it has successfully completed another retrofit of its air lubrication technology, the Silverstream® System, on a large LNG carrier at Seatrium’s Admiralty Yard in Singapore.

The retrofit, which was on a 174k cbm LNG carrier owned by an oil major, was completed in 30 days reinforcing the role that Silverstream’s technology can play as a near-term decarbonisation solution for existing ships. It is the 11th retrofit of the Silverstream® System that the company has delivered worldwide.

The Silverstream® System releases a carpet of air to reduce the frictional resistance between the hull and the water, reducing average net fuel consumption and GHG emissions by 5-10%. Moreover, in the case of LNGCs, these savings result in increased delivered volumes.

Silverstream has a proven track record of newbuild and retrofit installations and has delivered every one of its 69 in-operation installations on time. By completing the retrofit within 30 days, Silverstream also minimises any impacts on a vessel’s profitability.

Speaking on the announcement, Noah Silberschmidt, Founder & CEO, Silverstream Technologies, said: “This successful retrofit at Seatrium of our technology onboard another LNG carrier is yet further proof of our deep experience in the LNG segment. The market conditions and operational factors unique to LNGCs make them perfectly suited to our air lubrication technology, and we will continue to work with energy majors and our yard partners to ensure smooth installations onboard any vessel that chooses us as an efficiency-boosting option.”

Alvin Gan, Executive Vice President, Repairs and Upgrades, Seatrium Limited, said: "As the premier yard in LNGC repairs, upgrades and conversions, Seatrium is committed to working with our customers and partners to provide turnkey, one-stop solutions in energy efficiency retrofits for LNG carriers. Our collaboration with Silverstream Technologies is successfully delivering another retrofit of their air lubrication technology and further solidifies our position in the industry. By providing comprehensive engineering services through excellent project execution, we aim to continue to lead and play a key role in assisting our customers to achieve their energy efficiency targets."

 

Photo credit: Silverstream Technologies
Published: 11 April 2024

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Methanol

LR: Total cost of ownership a potential barrier for methanol propulsion on passenger ships

Report shows TCO for passenger ships retrofitted with methanol dual-fuel engines to be more than double the cost of blended fuel (Blend B30), HFO and HFO with carbon capture technology.

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Stena Germanica

A new report from Lloyd’s Register (LR), released recently, found that the total cost of ownership (TCO) for passenger ships retrofitted with methanol dual-fuel engines to be more than double the cost of blended fuel (Blend B30), heavy fuel oil (HFO) and HFO with Onboard Carbon Capture and Storage technologies (oCCS).

LR’s Fuel for thought: Methanol for Passenger Ships examined the TCO for operators over a 15-year period and based results on a calculation that 65% of voyage time would be spent in EU waters. 

Overall findings identified in the report, based on analysis by the LR Business Advisory team, show the bunkering price of methanol to be the main commercial barrier for its adoption, with the use of less environmentally friendly fossil based (grey) methanol a more commercially attractive proposition for passenger shipowners than a blend of 50% grey, 25% bio- and 25% e-methanol, even when EU emissions taxes are taken into account.

However, the study highlights that methanol is a technically viable fuel for ship operators looking to reduce the carbon emissions of passenger ship newbuilds, owing to the similar characteristics of methanol to existing fuels. 

Viable retrofit paths have also been taken to the sector, such as the pioneer LR project for the Stena Germanica back in 2015. This technical viability is reflected in the global orderbook with passenger ships ranging from small inland vessels to the largest cruise ships awaiting delivery.

The report also outlined that greater investment is needed in green and bio-methanol production along with improved bunkering infrastructure to increase fuel availability and reduce costs to a commercially viable level.

Natasha Pritchard, VP Strategic Key Accounts (Cruise), Lloyd’s Register, said: “Our latest Fuel for thought report brings some much-needed insights for passenger ship owners evaluating methanol as part of their energy transition pathway.”

“Whilst methanol as marine fuel holds considerable promise as a low carbon solution for passenger ship propulsion, the total cost of ownership (TCO) compared to other fuels may represent an obstacle to its widespread take-up in the segment.”

“It is therefore vital that renewable and low-carbon production of methanol is prioritised in order to drive down these costs.”

 

Photo credit: Stena Line
Published: 14 March 2024

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