Synthetic paraffinic kerosene (SPK) is an ultra-clean fuel with low aromatic content and negligible quantities of\nsulfur compounds. Although, SPK has a good potential to replace the conventional fuel Jet A-1, it also has some\ndeficiencies. One of them is the low lubricity compared to its conventional counterpart Jet A-1. To improve the\nlubricity of SPK, three selected additives have been mixed with SPK at different concentrations. The lubricity of the\nsamples was determined experimentally and the samples that meet the industry specifications have been studied\nfurther. The effect of the additives on the physicochemical properties, such as, density, flash point, freezing point,\nviscosity, and heat content, were investigated. Linoleic acid was found to be an excellent lubricity improver even at\na very low concentration and its negative impact on the other physicochemical properties was found to be\ninsignificant. Ethyl oleate also demonstrated significant improvement in lubricity at low concentrations but had a\nnegative impact on the fuelâ??s freezing point at high concentrations. Quinoline, at high concentrations, elevated the\nblendâ??s freezing point above the acceptable limits. In parallel to the experimental campaign, a pre-existing\nmathematical modelling tool was utilized to predict the properties of interest.
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