Engines & Fuel

Podcast: Ammonia’s voyage into marine power with Amogy

On this episode of Marine Log’s Listen Up! Podcast, we sit with Janna Chernetz, senior director of global government & regulatory affairs at Brooklyn, New York-headquartered ammonia-to-power innovator Amogy, on using ammonia as a fuel in its recent tug project and what that means globally for maritime.

Listen now on SoundCloud or Spotify below!

The ammonia tug project, named the NH3 Kraken, is the world’s first carbon-free, ammonia-powered vessel of any kind, according to the company.

The NH3...

https://www.marinelog.com/podcasts-1/podcast-ammonias-voyage-into-marine-power-with-amogy/

New Ibaizabal LNG bunkering vessel will be Wärtsilä 25DF powered

Wärtsilä will supply three Wärtsilä 25DF dual-fuel engines for a new 18,600 cubic meter capacity LNG bunkering vessel being built for Spanish operator Ibaizabal at China’s Hudong-Zhonghua Shipbuilding. The engines will feature Wärtsilä’s NextDF technology, which reduces methane emissions when operating with LNG fuel.

Wärtsilä adds NextDF tech to its 25DF engine

LNG is an important transition fuel as the marine industry strives to reduce its carbon footprint. However, the main component of LNG...

https://www.marinelog.com/news/new-ibaizabal-lng-bunkering-vessel-will-be-wartsila-25df-powered/

Corvus marine battery system receives LR type approval

Corvus Energy, Bergen, Norway, recently announced that it has received type approval from Lloyd’s Register (LR) for its Dolphin NxtGen Energy marine battery system. 

The LR type approval confirms that the energy dense and lightweight energy storage system (ESS) complies with the stringent rules, regulations, and safety requirements in the industry, as defined by one of the leading maritime class societies. 

Safety features and modular design

The Corvus Dolphin NxtGen Energy design features safety...

https://www.marinelog.com/news/corvus-marine-battery-system-receives-lr-type-approval/

FMD selected to supply main propulsion engines for T-AO 214

General Dynamics NASSCO has awarded Fairbanks Morse Defense (FMD) a contract to build and deliver the main propulsion diesel engines for the Military Sealift Command’s future USNS Dolores Huerta (T-AO 214).

The USNS Dolores Huerta is the 10th vessel in the John Lewis-class of fleet replenishment oilers. It will be powered by two 12V 48/60 CR main propulsion engines and two 71 32/44 CR service diesel engines, all manufactured at FMD’s Beloit, Wisconsin, facility.

Each engine will feature a common...

https://www.marinelog.com/news/fmd-selected-to-supply-main-propulsion-engines-for-t-ao-214/

MAN 175D picked to power DOF Sea Dragon OSV newbuild

Poland’s Crist Shipyard has ordered six MAN 12V175D variable speed gensets in connection with the construction of an OSV (offshore support vessel) for DOF. Provisionally named Sea Dragon, the OSV is set to assist operations off the coast of Newfoundland, Canada.

Designed by Gdynia-based MMC Ship Design & Marine Consulting Ltd., the Sea Dragon is scheduled for delivery by Q1 2027.

The ice-classed, 110 meter long vessel, will feature dynamic positioning class 3 and be capable of accommodating 164...

https://www.marinelog.com/offshore/man-175d-picked-to-power-dof-sea-dragon-osv-newbuild/

Laborde Products repowers trio of towboats

Covington, La.-based Laborde Products has recently repowered three vessels that provide services along U.S. inland waterways.

The most recent repower was for Lydia Ann Channel Fleet (LACF), a provider of fleeting and fuel services along the Gulf Intracoastal Waterway based in Rockport, Texas.

The triple-screw vessel, previously powered by 6125 John Deere engines, is now running on Scania DI13 080M marine engines, each delivering 400 horsepower at 1,800 rpm. The repower, says Laborde, improves...

https://www.marinelog.com/inland-coastal/inland/laborde-products-repowers-trio-of-towboats/

TTB 2025: That’s Progress – Crowley’s innovative LNG barge

Last summer, Crowley took delivery of the LNG bunker barge Progress from Fincantieri Bay Shipbuilding in Sturgeon Bay, Wis. At 12,000 cubic meters capacity and with a length of 430 feet, it is the largest Jones Act compliant LNG bunker barge thus far built.

To go into more detail on the design, construction and operation of the barge, a trio of Crowley representatives who worked directly on managing the project will present at Marine Log’s Tugs, Towboats & Barges (TTB) 2025 conference on March...

https://www.marinelog.com/events/ttb-2025-thats-progress-crowleys-innovative-lng-barge/

MAN dual fuel methanol genset passes TAT

MAN Energy Solutions reports that its MAN 7L21/31DF-M (dual fuel-methanol) genset has successfully passed its type approval test (TAT) in China. The TAT was carried out in close cooperation with MAN Energy Solutions licensee CSSC Marine Power (CMP) at its production facility in Zhenjiang, and received approval from all major classification societies present at the event.

The basis for the new methanol engine concept is the MAN 21/31 Mk II type that is part-load optimized and claims a world-best...

https://www.marinelog.com/technology/man-dual-fuel-methanol-genset-passes-tat/

Hanwha Ocean orders ME-GI engines for LNG carrier newbuilds

South Korean shipbuilder Hanwha Ocean has ordered four MAN B&W 5G70ME-GI Mk10.5 engines in connection with the construction of two 174,000 cubic meter LNG carriers for an undisclosed shipowner. Hanwha Engine Co. will build the engines in South Korea and the contract contains an option for engines for two additional vessels. Each engine will come integrated with MAN Energy Solutions’ proprietary EGRBP (Exhaust Gas Recirculation ByPass) system.

“It’s very satisfying to see our ME-GI engine orders...

https://www.marinelog.com/news/hanwha-ocean-orders-me-gi-engines-for-lng-carrier-newbuilds/

Baker Hughes and Hanwha in ammonia gas turbine agreement

Ammonia-fueling is widely seen as key to shipping’s decarbonization. And while ammonia fueled four stroke engines will soon be a reality, ammonia gas turbines could be in the not too distant future.

Korea’s Hanwha Group plans to complete the development of LNG carriers and containerships using an ammonia gas turbine propulsion system by 2028.

The ammonia gas turbines will be developed in cooperation with Baker Hughes (NASDAQ: BKR) under a joint development and collaboration agreement just signed...

https://www.marinelog.com/baker-hughes-and-hanwha-in-ammonia-gas-turbine-agreement/

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