Challenges and Countermeasures of Ammonia as an Energy Fuel
Ammonia(NH3)is a carbon-free hydrogen carrier fuel that is easy to produce and does not generate CO2 when burned.The energy required for its thermal decomposition and hydro-gen release is low.When co-fired with carbon-based fuels(such as diesel),it can improve the fuel energy efficiency and reduce greenhouse gas emissions.This article discusses the necessity of developing ammonia-blended fuels,the challenges faced in the development of ammonia-blended fuels(ammonia-hydrogen,ammonia-methane,and ammonia-diesel)in internal combustion engines,such as poor stability,slow combustion,and ignition difficulties.It proposes solutions such as optimizing the hydrogen doping ratio,improving combustion chamber design,low-tem-perature denitrification,adjusting the ammonia proportion,and creating an oxygen-rich environ-ment.The article also looks ahead to the future development of ammonia-blended fuels.
ammonia-blended fuelszero carbon combustiongreenhouse gas
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