Site items in: Emissions Testing

Article

2025 is a critical year for the adoption of ammonia fuel in shipping. Here, we preview important upcoming meetings of the International Maritime Organization, what regulatory gaps are being filled by this work, potential candidates for decarbonization measures, and progress in engine development. All this sets the scene for incredible progress to be made in the coming years.

Article

With commercial deployment scheduled to start this June, both WinGD and MAN ES’s under-development ammonia fueled engines have reported promising results across performance, ammonia safety and emissions optimisation parameters. MAN ES and MITSUI have also commenced a commercial-scale prototype test of the MITSUI-MAN ES large-bore, low-speed, two-stroke ammonia engine in Tamano, Japan.

Ammonia Energy Conference 2024: Ammonia for Maritime Propulsion is full speed ahead!
Article

During the recent 2024 Ammonia Energy Conference, we explored all the latest developments in ammonia-powered maritime propulsion. Engine makers reported strong progress ahead of deployment in 2026, the same year that large-scale vessels will hit the water. The panel explored early operations for the ammonia-powered A-Tug in Japan, as well as ancillary technology systems required for maritime ammonia engines, catalyst after-treatment systems for emission mitigation, and the potential for fuel additives to boost ammonia engine performance.

How to give a chemical push to ammonia in a compression ignition engine?
Presentation

The initial work on direct additivation to ammonia in a Rapid Compression machine showed promising results and radical ignition delays and temperature reduction. From these tests on, tests conducted on a research mono-cylinder engine, with the help of the Prisme laboratory at the University of Orléans, demonstrated that the additive used in pilot fuels allowed for better controlled ignition than the pilot fuel alone, better and eased cycle to cycle stabilization and better power output. It also quite dramatically reduced the amount of pilot fuel needed. It seems that the additive helps to keep ammonia in the combustion event even…