In the past decades, combustion engines have played an important role in addressing the transportation demands. However, emissions of greenhouse gases such as carbon dioxide (CO2) emitted by combustion engines rapidly increased, leading to climatic issues like global warming. This adverse environmental impact has been the main motivation to search for clean solutions for fossil fuel replacement. Ammonia is recognized as a promising carbon-free fuel to meet the requirement in CO2 reduction. Specifically, ammonia has a higher volumetric energy density compared with Hydrogen, and it is easier to produce, store and transport in comparison to other carbon-free fuels. However, ammonia-fueled applications exhibit lower efficiency and stability compared with conventional-fueled systems, due to the lower flame speed and combustion temperatures of ammonia. In this review paper, the previous and ongoing studies exploring the potential of ammonia as an engine fuel are highlighted. The strategies to realize the usage of ammonia in combustion engines are summarized, and the future pathway to use ammonia as an engine fuel is discussed.
The Use of Ammonia as a Fuel for Combustion Engines
Energy, Environment, and Sustainability
2021-12-14
24 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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