Site items in: Ammonia Engine

Article

Cracking-based propulsion systems, new vessels on order

Julian Atchison June 05, 2023

Norwegian technology developer Pherousa announced that it has developed & validated an ammonia cracking-based propulsion system, with plans to order six Ultramax vessels fitted with the technology. Grieg Maritime has ordered up to four ammonia-ready bulk carriers from China State Shipbuilding Corporation for delivery in 2026. And a new container ship design has been unveiled by the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping.

Article

Maritime updates: modeling engine room fuel leaks, testing a new fuel supply system

Julian Atchison June 04, 2023

ABS has used computational fluid dynamics to model ammonia dispersion patterns in a ship’s engine room, with the aim of producing a fast, real-time response system for ammonia leaks. In Japan, a fuel supply system for large-scale, low-speed, two-stroke marine engines is undergoing final verification testing. Mitsubishi Shipbuilding aims to become a key technology provider of such systems, and in the ammonia maritime fuel space.

Article

Safety and the marine ammonia engine

Conor Furstenberg Stott June 04, 2023

As part of our Maritime Ammonia Insights webinar series, we explored the safety learnings gained so far during the development of maritime ammonia fueled engines, as well as existing best practices for safe ammonia handling. John Mott (ASTI), Kaj Portin and Laura Sariola (both Wärtsilä) were joined in conversation by Conor Furstenberg Stott.

Article

IHI, NYK Line report successful marine engine testing in Japan

Julian Atchison May 23, 2023

Successful testing has been completed at IHI’s facilities in Ota, Japan. A four-stroke marine engine - fully integrated with exhaust gas aftertreatment and fuel supply systems - produced stable operations running on up to 80% ammonia fuel. Emissions of dinitrogen monoxide (N₂O) and ammonia slip were reported as “virtually zero”.

Article

North Ammonia to supply ammonia fuel for Höegh Autoliners’ fleet

Julian Atchison May 22, 2023

Norway-based North Ammonia will supply at least 100,000 tonnes per year of ammonia fuel to Höegh Autoliners from 2030, powering their future fleet of Aurora class car carriers. Grid-based electrolysis will feed production of ammonia in Eydehavn on Norway’s south coast, with bunkering to take place somewhere in the Amsterdam-Rotterdam Antwerp area. In more maritime ammonia news out of Norway this week, Skarv Shipping will receive government funding to develop cargo vessels featuring ammonia-powered, four-stroke engines.

Article

Key shipping stakeholders see a multi-fuel future: new survey results

Julian Atchison May 08, 2023

A recent survey reveals how shipping industry leaders see the maritime fuel transition progressing. With conventional ship engines set to remain the preferred technology until at least 2050, almost all the survey respondents saw their fleets running on a mix of fuels by that date. Although methanol & ammonia are likely to be adopted at scale, respondents do not currently see any of the new fuels emerging as an industry standard, with key choices ahead for shipping companies, fuel producers, bunker providers and industry regulators.

Article

NoGAPS vessel project enters next phase

Julian Atchison April 03, 2023

The second phase of the NoGAPS project is well underway. Led by the Maersk Mc-Kinney Møller Center for Zero Carbon Shipping, a detailed plan for the design, operation and business case for the future MS NoGAPS vessel will be developed. Construction and delivery is expected in 2024-25. Also in Scandinavia, Viridis Bulk Carriers has been awarded AiP from Bureau Veritas for its ammonia-fueled, short-sea, bulk carrier design.

Article

Retrofitting vessels for ammonia fuel: new technical study from Grieg Star

Julian Atchison March 21, 2023

Grieg Star and a series of high-profile maritime consortium partners have assessed the full feasibility for retrofitting a Grieg Star L-Class vessel to run on ammonia fuel. The study concludes that technical & regulatory challenges will not be showstoppers in the transition. A combination of high investment costs, uncertainty over ammonia fuel availability & pricing and slow market development remain the biggest barriers, presenting significant risks for first movers.

Article

Mitigating emissions risks from ammonia-powered vessels

Julian Atchison March 20, 2023

Technology solutions to manage emissions from ammonia-powered internal combustion engines will be commercially available on a similar timeline to the engines themselves, a new report from the Mærsk Mc-Kinney Møller Center concludes. Although the authors are confident ammonia combustion emissions (including the potent greenhouse molecule N₂O) will be successfully minimised, key gaps include a lack of industry-wide emissions thresholds and a poor understanding of the well-to-tank emissions of ammonia fuel, particularly CCS-based ammonia.

Article

Quantifying the environmental impacts of ammonia at sea

Sofia Furstenberg Stott March 09, 2023

In our latest episode of Maritime Ammonia Insights, we explored the findings of a new, landmark environmental study: Ammonia at Sea. Speakers representing the report’s co-authors joined us to discuss the results, what further work is required and how the report is being incorporated into policy discussions at the IMO.