Volume 7, Issue 1, March 2018, Page: 47-53
Energy Efficiency and Emissions Analysis of Ammonia, Hydrogen, and Hydrocarbon Fuels
Yuegu Wang, College of Energy, Xiamen University, Xiamen, China
Songsheng Zheng, College of Energy, Xiamen University, Xiamen, China
Zhaolin Wang, College of Energy, Xiamen University, Xiamen, China
Received: Jun. 19, 2018;       Published: Jun. 20, 2018
DOI: 10.11648/j.jenr.20180701.17      View  912      Downloads  64
This paper compares some typical fossil fuels with carbon-free fuels from aspects of combustion-related properties, energy efficiency and emissions. It is based on the assumption that the fuel of interest is completely combusted. The comparison indicators include species of exhaust gases, wasted heat of emissions and the quantities thereof. It is found that in spite of the weakness of lower volume energy density of ammonia than gasoline, diesel and methane, the lower corresponding air-fuel ratio of ammonia compromised this weakness. From the comparison of total emissions by mass, it is found that combustion of ammonia generates a much smaller amount of total emissions than the combustion of the same kilogram of hydrogen, gasoline, diesel, methane, and ethanol. Although combustion of hydrogen does not generate CO2, the total emissions by mass are much larger than other fuels and is 5 times greater than ammonia per unit mass of fuel. Besides, the total amount of emissions of these fuels is similar when producing the same amount of combustion heat. It is concluded that ammonia is a very promising fuel that not only generates fewer CO2 emissions, fewer total emissions, but also performs high energy efficiency.
Fuels, Ammonia, Combustion Emissions, Hydrogen
To cite this article
Yuegu Wang, Songsheng Zheng, Zhaolin Wang, Energy Efficiency and Emissions Analysis of Ammonia, Hydrogen, and Hydrocarbon Fuels, Journal of Energy and Natural Resources. Vol. 7, No. 1, 2018, pp. 47-53. doi: 10.11648/j.jenr.20180701.17
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