Similar to the previous engine concepts for liquid gas injection propane, ME-LGIP (LPG), and liquid gas injection methanol, ME-LGIM, the two-stroke ammonia concept is an add-on to the ME engine. Engines for the MAN B&W ME-GI and LGI
Engines that run on ammonia have the potential to enable zero-carbon shipping. The AEngine project aims to create and demonstrate a safe, reliable, and efficient ammonia-fueled two-stroke engine.
Due to its high ignition temperature and low flame velocity, ammonia’s chemical reaction rate is slower than that of conventional fuels when used as a fuel in internal combustion engines. Ammonia is released from the exhaust without burning because of the sluggish rate of the chemical reaction.
In contrast to premixed or Otto-cycle combustion, the dual-fuel two-stroke engine uses the combustion principle of using Marine Diesel Oil (MDO) or Heavy Fuel Oil (HFO) alongside high-pressure natural gas. The fuel is then injected into the engine and burned directly.
Even when only low-cost emissions controls are utilized, ammonia can be burned in internal combustion engines with minimal modifications, releasing only nitrogen and water vapor from the exhaust. A selective catalyst reduction system would clean the engine’s exhaust of unburned ammonia and nitrogen oxides.
The Global two-stroke ammonia engine market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Partnerships, cooperation, and an understanding of the interests of the market are necessary to develop an engine for a novel fuel like ammonia. In addition to offering retrofit conversions of existing two-stroke engines to ammonia, MAN Energy Solutions puts a lot of effort into developing the MAN B&W engine for use with ammonia.
One of the largest transitions ever is decarbonization, and the short time frame to succeed necessitates a united and committed approach from the entire supply chain, from well to wake. This paper presents our current understanding of ammonia as a potential long-term fuel for two-stroke marine engines.
This puts ammonia into perspective as a fuel for marine engines. The beneficial carbon-free nature of ammonia also implicates that ammonia combustion physics will not fully resemble the combustion characteristics of previously known two-stroke fuels.
We address the challenges faced by the maritime market, which are best described as a paradigm shift to ensure It is essential to investigate the entire propulsion solution as well as the two-stroke engine processes, including fuel handling, ignition, combustion, and emission, in order to provide our customers with an engine that is optimized and dependable in accordance with the renowned MAN ES standard.
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