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Norway to fund world’s first full-scale testing of ammonia-fuelled four-stroke engine

The world’s first long term, full-scale testing of ammonia as a fuel in a marine four-stroke combustion engine will commence early next year thanks to $2.05m funding from the Norwegian Research Council. 

The partners involved in the landmark project are Knutsen OAS Shipping, Eidesvik Offshore, Repsol, Wärtsilä and the Sustainable Energy Catapult Centre.

“This is a great example that illustrates the importance of dedicated petroleum R&D,” said Tina Bru, Norway’s minister of petroleum and energy.

“Know-how from this project will also provide important input to the development of regulations for the use of ammonia and other low-carbon fuels.”

The Norwegian culture for collaboration and knowledge sharing across different companies and sectors is a great support in closing big technology gaps

The project will commence in the Sustainable Energy Catapult Centre’s testing facilities at Stord, Norway during the first quarter of 2021. The centre is part of the Norwegian Catapult programme that facilitates a national infrastructure for innovation.

“We are really excited to further develop and understand the combustion properties of ammonia as a carbon free fuel in one of our multi-fuel engines”, said Egil Hystad, general manager at Wärtsilä Marine Business.

An ammonia driven fuel cell will be tested on the Eidesvik Offshore supply vessel, Viking Energy.

“The Norwegian culture for collaboration and knowledge sharing across different companies and sectors, is a great support in closing big technology gaps. The assistance, cooperation and funding from governmental institutions are essential to drive the change towards a carbon free future,” Hystad said today.

A 33-page report from class society Korean Register (KR) earlier this year highlighted the advantages of ammonia as a ship fuel.

A big plus with ammonia, according to the KR report, is in pricing. The total energy cost when including the production and transport of ammonia alongside two other fuels being touted as shipping’s fuel of the future makes for interesting reading in the KR report.

Ammonia works out 32% cheaper than hydrogen and 15% cheaper than methanol.

Wärtsilä’s rival, MAN Energy Solutions has said there are more than 3,000 existing MAN B&W engines, which can be modified into ammonia fuel engines.

“Ammonia is expected to have low production, storage, and transport costs compared to other carbon-neutral fuels, and the stable fuel supply is possible as the large-capacity ammonia synthesis technologies are already mature. It can be regarded as the carbon-neutral fuel for ships with the growth potential since it is expected to be at the allowable level technically and commercially from the storage temperature, energy density, and shipbuilding cost perspective,” KR stated.

Ammonia developments are happening fast in recent months. January saw Malaysia’s flagship carrier MISC along with Samsung Heavy Industries, Lloyd’s Register and MAN Energy Solutions set about building a landmark ammonia-fuelled tanker

In October last year, Maersk, the world’s largest containerline, identified three fuels to focus on, namely alcohol, biogas and ammonia as it transitions towards complete decarbonisation by 2050.

Class society ABS published an influential 103-page new fuels guide in April in which it predicted the use of ammonia as a fuel will grow dramatically (see chart below) due to its zero-carbon content, easier distribution, storage and bunkering compared to hydrogen, and its suitability with existing and emerging technologies for propulsion and power generation.

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Sam Chambers

Starting out with the Informa Group in 2000 in Hong Kong, Sam Chambers became editor of Maritime Asia magazine as well as East Asia Editor for the world’s oldest newspaper, Lloyd’s List. In 2005 he pursued a freelance career and wrote for a variety of titles including taking on the role of Asia Editor at Seatrade magazine and China correspondent for Supply Chain Asia. His work has also appeared in The Economist, The New York Times, The Sunday Times and The International Herald Tribune.
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