Investigation of Water Interactions with Petroleum-Derived and Synthetic Aviation Turbine Fuels
2018
West, Zachary J. | Yamada, Takahiro | Bruening, Christopher R. | Cook, Rhonda L. | Mueller, Susan S. | Shafer, Linda M. | DeWitt, Matthew J. | Zabarnick, Steven
While undesirable in aviation fuel systems, water is both ubiquitous and tenacious; thus, interactions between water and aviation turbine fuel occur regularly. From a fuel user perspective, it is important to know, understand, and be able to predict such fuel–water interactions, e.g., water solubility, water settling rate, and interfacial tension, for proper mitigation. We explore these interactions as well as surface tension of both petroleum-derived and alternative jet fuels to compare potential differences between product compositions on these physical interactions. Observations indicate a positive, nonlinear correlation between water solubility and both aromatic content and temperature (from 0 to 50 °C). Water settling rates appear to follow a Stokes’ law model; therefore, bulk chemical composition indirectly influences settling rates via density and viscosity. Finally, surface tension appears positively correlated to sample density, while interfacial tension is correlated to both surface tension and fuel aromatic content.
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