J-ENG to investigate hydrogen and ammonia as combustion fuels

J-ENG identified the “combustion of carbon-free fuel” as one of the solutions for decarbonization. J-ENG noted that hydrogen energy as a promising energy carrier for achieving a decarbonized society, and various studies are being conducted about the use of liquefied hydrogen and ammonia.

J-ENG underlined its commitment to moving forward to innovate and provide alternative energy solutions for the future.

The National Maritime Research Institute has been investigating the use of hydrogen and ammonia fuel as a potential means of reducing greenhouse gas emissions. This includes conducting research into the use of hydrogen and ammonia as a fuel for a gas engine, which has been carried out on the institute’s 1985-vintage 3 cylinder 230mm bore test engine.

NMRI’s current research into hydrogen and ammonia as fuel was included in a presentation to NMRI’s conference in Tokyo in May. This included operational experience of using hydrogen in a 155mm bore Yanmar AYG20L-SE gas-fuelled engine, as well as experience with co-firing ammonia at concentrations of up to 20% in an IC engine, and experiments with a catalyst to reduce ammonia-derived NOx in the engine exhaust.