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Aerospace 2017, 4(2), 18; doi:10.3390/aerospace4020018

Spray Characteristics of Alternative Aviation Fuel Blends

1
Laboratory of Applied Thermodynamics, Mechanical Engineering & Aeronautics Department, University of Patras, 26504 Patras, Greece
2
Laboratory of Fluid Mechanics, Mechanical Engineering Department, Technological Educational Institute Western Greece, 26443 Patras, Greece
3
Laboratory of Fluid Mechanics & Turbomachinery, Department of Mechanical Engineering Educators, School of Pedagogical & Technological Education, 14121 Athens, Greece
*
Author to whom correspondence should be addressed.
Academic Editors: Simon Blakey, Sigrun Matthes, Paul Brok, Volker Grewe and Simon Christie
Received: 31 December 2016 / Revised: 8 March 2017 / Accepted: 17 March 2017 / Published: 23 March 2017
View Full-Text   |   Download PDF [3048 KB, uploaded 23 March 2017]   |  

Abstract

The compatibility of spray characteristics of alternative fuel blends, in relation to currently used Jet A-1 fuel, has been assessed experimentally. Tested blends were selected based on a narrow cut of paraffins, mixed with appropriately selected aromatics and naphthenes. Relevant physical properties including the density, viscosity, and surface tension were estimated first. The jet spray was produced using a single fluid, generic nozzle at operating pressures 5–11 bars. The atomization characteristics were assessed through measurements of droplet velocity field and droplet size, using phase Doppler anemometry. The physical properties varied within 10% of the reference fuel values. The spray results indicate that all tested blends produced similar atomized jets and droplet sizes, although observed differences may influence the implementation of combustion schemes which require precise control of the flow pattern. View Full-Text
Keywords: alternative aviation fuels; jet spray; atomization; phase Doppler anemometry (PDA) alternative aviation fuels; jet spray; atomization; phase Doppler anemometry (PDA)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Vouros, A.P.; Vouros, A.P.; Panidis, T. Spray Characteristics of Alternative Aviation Fuel Blends. Aerospace 2017, 4, 18.

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