Ail investigation was conducted in a single J33 combustor to determine the effect of additions of typical high-boiling single-ring and dicyclic aromatic hydrocarbons on the combustor carbon-deposition characteristics of MIL-F-5624A fuels. Triisopropylbenzene and monomethylnaphthalene were used to increase the high-boiling aromatic contents of grade JP-3 and JP-4 fuels. The quantities of carbon deposited after 4-hour combustor operation were compared with those predicted from carbon-deposition correlations previously developed.
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