Ammonia combustion at elevated pressure and temperature conditions |
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Authors: | C Duynslaegher H Jeanmart |
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Affiliation: | a Laboratoire de Physico-Chimie de la Combustion, Université catholique de Louvain, Belgium b Unité de Thermodynamique et Turbomachines, B-1348 Louvain-la-Neuve, Université catholique de Louvain, Belgium |
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Abstract: | This numerical study examines the combustion characteristics of premixed ammonia-air mixtures, with equivalence ratios around unity, at elevated pressure and temperature conditions which are encountered in SI engine operations. The laminar burning velocity, final flame temperature and species concentrations were determined using Konnov’s mechanism 18]. A flat, freely propagating flame was considered. Both equivalence and compression ratios have an important impact on both the laminar burning velocity and the adiabatic flame temperature. Furthermore, only the variation of the equivalence ratio has a major impact on the formation of nitrogen monoxide. It was found that the compression ratio and the final temperature do not have a significant impact on NO yields for equivalence ratios above unity. |
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Keywords: | Ammonia Alternative fuel SI engine |
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