AMMONIA DUAL-FUEL TECHNOLOGY
The XeroCarbon engine will focus on the dual-fuel system, utilizing both ammonia and hydrogen as fuel. Ammonia is injected into the combustion chamber, and the intake pipe supplies the chamber with hydrogen gas.
Main Fuel
Ammonia
Gas Fuel
Hydrogen
Modification
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The diagram on the right illustrates the interior of a typical dual-fuel engine. This engine mixes natural gas with diesel to reduce specific greenhouse gas emissions including CO2 and NOx.
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The XeroCarbon engine would use ammonia fuel instead of diesel and hydrogen instead of natural gas.
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Ammonia, although it is a carbon-zero fuel, has low flammability. To aid its combustion, hydrogen (with air) would be mixed with ammonia in the combustion chamber to increase the overall flammability.
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Production of Green Ammonia
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The Haber-Bosch process is used to react nitrogen with green hydrogen. The product of this would be green ammonia.
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Green hydrogen is produced from water-electrolysis - a process which breaks down water molecules into oxygen and hydrogen.
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This type of water-electrolysis will run on renewable energy, making the product carbon-zero hydrogen (green hydrogen)
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