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Chemical kinetic models for combustion of hydrocarbons and formation of nitric oxideThe formation of nitrogen oxides NOx during combustion of methane, propane, and a jet fuel, JP-4, was investigated in a jet stirred combustor. The results of the experiments were interpreted using reaction models in which the nitric oxide (NO) forming reactions were coupled to the appropriate hydrocarbon combustion reaction mechanisms. Comparison between the experimental data and the model predictions reveals that the CH + N2 reaction process has a significant effect on NO formation especially in stoichiometric and fuel rich mixtures. Reaction models were assembled that predicted nitric oxide levels that were in reasonable agreement with the jet stirred combustor data and with data obtained from a high pressure (5.9 atm (0.6 MPa)), prevaporized, premixed, flame tube type combustor. The results also suggested that the behavior of hydrocarbon mixtures, like JP-4, may not be significantly different from that of pure hydrocarbons. Application of the propane combustion and nitric oxide formation model to the analysis of NOx emission data reported for various aircraft gas turbines showed the contribution of the various nitric oxide forming processes to the total NOx formed.
Document ID
19810005506
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Jachimowski, C. J. (NASA Langley Research Center Hampton, VA, United States)
Wilson, C. H. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
December 1, 1980
Subject Category
Inorganic And Physical Chemistry
Report/Patent Number
NASA-TP-1794
L-14106
Accession Number
81N14017
Funding Number(s)
PROJECT: RTOP 506-52-33-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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