Numerical Study of the Effect of Hydrogen or Syngas Additions to n-Decane on the Harmful Substance Emission from a Homogeneous Combustion Chamber
| Autor: | S. A. Torokhov, N. S. Titova, V. E. Kozlov |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
010304 chemical physics Hydrogen Analytical chemistry chemistry.chemical_element Decane 010402 general chemistry Kinetic energy 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Surface-area-to-volume ratio Homogeneous 0103 physical sciences Physical and Theoretical Chemistry Combustion chamber Carbon monoxide Syngas |
| Zdroj: | Russian Journal of Physical Chemistry B. 14:395-406 |
| ISSN: | 1990-7923 1990-7931 |
| DOI: | 10.1134/s1990793120030082 |
| Popis: | In this paper, we perform a comparative numerical analysis of turbulent combustion and harmful substance emission from a homogeneous combustion chamber operating on pure n-decane and mixed n-decane/hydrogen or n-decane/syngas fuels. The calculations were performed using the ANSYS Fluent program, and a reduced kinetic mechanism describing the oxidation of the fuels under consideration was developed. The hydrogen or syngas addition to n-decane in a 50/50 volume ratio is shown to lead to a decrease in temperature both inside the combustion chamber and in its outlet section. There is a simultaneous decrease in the carbon oxides and nitrogen emission. The depletion of the air–fuel mixture with an excess air coefficient of α = 2.3–2.5 sharply reduces the nitric oxide emission and simultaneously increases significantly the carbon monoxide emission. In this depletion, total NO and CO emission index increases more than twofold. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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