Characterization of water droplets size distribution in aviation turbine fuel: ultrasonic homogeniser vs high shear speed mixer

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dc.contributor.authorUgbeh-Johnson, Judith
dc.contributor.authorCarpenter, Mark
dc.contributor.authorOkeke, Nonso Evaristus
dc.contributor.authorMai, Nathalie
dc.date.accessioned2022-09-21T10:02:12Z
dc.date.available2022-09-21T10:02:12Z
dc.date.issued2022-09-21
dc.description.abstractPumps, pressure drops across fittings, and flight operations (such as turning manoeuvres, take-off, and landing) are some of the many sources of turbulence mixing and shearing in aircraft fuel systems, therefore, making it an inevitable condition. Literature established that shearing conditions would influence the droplets and droplets size distribution in an oil/water emulsion. So, low intensity shearing conditions could be beneficial as it promotes droplets coalescence, which could be a driving force for a weak emulsion. However, to date no experimental data has shown the influence homogenising intensity and total water content has on dispersed water droplets size distribution in aviation fuel. Therefore, to expand knowledge of quantification of measurements of dispersed water droplets in aviation fuel, this study characterizes dispersed water droplets in aviation turbine fuel, varying available laboratory homogenising devices and water content. Results presented show that droplets count increases with water concentration and shearing effect. To provide more statistical evidence, kurtosis and skew values were calculated from the extrapolated data and compared with data from a hexanol/water mixture given that hexanol is likely to form a stable emulsion. Experimental results show that the higher the homogenising intensity the more stable the emulsion is likely to be with a higher kurtosis and skew value close to that for the hexanol/water mixture. Therefore, observations show that mild shearing conditions (high shear mixing in this case) could help promote droplets coalescence, leading to a better separation ability.en_UK
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC): EP/N509127/1. Airbus Operations, Filton, Bristol (Reference ID: 1100152106), United Kingdom.en_UK
dc.identifier.citationUgbeh-Johnson J, Carpenter M, Okeke NE & Mai N (2023) Characterization of water droplets size distribution in aviation turbine fuel: ultrasonic homogeniser vs high shear speed mixer, Fuel, Volume 332, Issue 1, January 2023, Article number 125674en_UK
dc.identifier.eissn1873-7153
dc.identifier.issn0016-2361
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2022.125674
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18461
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectDroplets sizeen_UK
dc.subjectStokes lawen_UK
dc.subjectAviation fuelsen_UK
dc.subjectFuel systemsen_UK
dc.subjectSheddingen_UK
dc.subjectJet fuelen_UK
dc.subjectAircraften_UK
dc.subjectEmulsionen_UK
dc.titleCharacterization of water droplets size distribution in aviation turbine fuel: ultrasonic homogeniser vs high shear speed mixeren_UK
dc.typeArticleen_UK

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