Site items in: Ammonia Engine

Wärtsilä ammonia engine to power the <i>Viking Energy</i>
Article

Wärtsilä has been contracted to supply the total technology package for the conversion of the Viking Energy to run on ammonia fuel. The original plan to retrofit the vessel with a 2 MW solid oxide fuel cell system was delayed by supply chain and development challenges, but SOFC developer Alma Clean Power will continue to test and scale its direct ammonia-fed technology for maritime applications.

R&D recap: the <i>Journal of Ammonia Energy</i> – volume II
Article

Ahead of the international Symposium on Ammonia Energy event next month, we recap R&D presented in the second edition of the Journal on Ammonia Energy:

  • An integrated, indirect ammonia solid-oxide cell featuring a heat exchanger and ammonia cracker was modelled, built and tested by the UK’s Science and Technologies Council (STFC).
  • The techno-economics of the transportation of energy from Orkney, Scotland to Milford Haven, Wales using ammonia as an energy carrier transported by ship may be the most cost-effective option.
  • N2O and NOX conversion in ammonia engine exhausts is limited by the presence of oxygen and water, presenting an optimisation challenge for technology developers.
  • And an academic-industry joint session on ammonia safety highlighted multiple projects currently underway to tackle the risks associated with the use of ammonia in new commercial sectors.

R&D recap: the <i>Journal of Ammonia Energy</i>
Article

Ahead of the 3rd Symposium on Ammonia Energy in Shanghai next month, we take the opportunity to highlight select papers and key results from the first two editions, starting with the 2022 Cardiff event:

  • In an ammonia-diesel blending study, Orleans University and WinGD found that minimising the diesel fraction actually led to increased N2O emissions.
  • In a bid to produce an optimal ammonia-hydrogen fuel blend, a University of Birmingham team characterised the ammonia cracking mechanism of a new, transition metal-promoted lithium amide catalyst.
  • A KAUST study of swirl intensity of an ammonia-methane blended fuel finds that increasing the swirl number leads to a more compact flame, reducing NOX emissions.
  • A team from the University of Minnesota found that combustion durations comparable to gasoline were obtained for ammonia-hydrogen fuel blends.
  • And, as part of a joint academic-industry session on safety, it was recommended that a careful, proactive approach is taken towards new ammonia users, likely exposure risk points and deploying maritime ammonia fuel.

Onboard cracking, fuel storage and adhering to emissions standards: highlights from the MariNH3 conference
Article

At last month’s MariNH3 conference in Nottingham, a series of keynotes laid out the opportunities and challenges ahead for marine ammonia fuel. Onboard ammonia cracking technologies are moving through testing phases and closer to commercialisation, vessel designers are working through the unique challenges of carrying ammonia fuel onboard, and emissions mitigation technology (in combination with adherence to existing Tier 3 standards) will be necessary to ensure that ammonia-powered vessels are more environmentally-friendly than conventional counterparts.

Order book for alternative-fueled vessels grows in 2023
Article

Clarksons Research and DNV have provided their analysis of global ship orders for 2023. Last year saw the first orders for ammonia-fueled vessels, with container ships & car carriers dominating the order book for alternative fuel propulsion ships. But UMAS & the Global Maritime Forum warn that the current order book trajectory may only be a fifth of what is needed to achieve the IMO’s 2030 target for alternative fuel uptake.

All hands to the pump: every stakeholder needed to support marine ammonia fuel
Article

For our final episode of Maritime Ammonia Insights, we asked our resident experts Sofia and Conor Fürstenberg Stott to provide their insights on the pathway forward for marine ammonia fuel. Discussion topics included challenges for overlaying alternative fuels onto the existing bunker industry, the importance of seafarers to the transition, and why we need to move beyond talking about competition between alternative fuel candidates.

Fortescue: <i>Green Pioneer</i> sails to Dubai for COP28
Article

Following a successful engine retrofit, FFI’s dual fuel vessel debuted at COP28 this month. Unable to run on or carry ammonia fuel due to restrictions from local authorities, FFI Chairman Andrew Forrest called for the world’s ports to catch-up to technological progress and update their regulations. FFI will also be a key part of the Pacific Northwest Hydrogen Hub (one of seven hubs awarded funding by the US DoE), and has added to its vertical integration capabilities with the opening of a new technical innovation centre in the UK.