Comparison of near nozzle spray performance of GTL and Jet A-1 jet fuels using shadowgraph and phase Doppler anemometry

[+] Author and Article Information
Kumaran Kannaiyan

Assistant Research Scientist, Texas A&M University at Qatar, Education city, Doha 23874, Qatar

Reza Sadr

Associate Professor, Texas A&M University, College Station, TX 77843, USA

1Corresponding author.

ASME doi:10.1115/1.4039271 History: Received December 08, 2017; Revised January 24, 2018


The gas-to-liquid (GTL), a liquid fuel synthesized from natural gas through Fischer-Tropsch process, exhibits better combustion, and in turn, lower emission characteristics than the conventional jet fuels. However, the GTL fuel has different fuel properties than those of regular jet fuels, which could potentially affect its atomization and combustion aspects. The objective of the present work is to investigate the near nozzle atomization characteristics of GTL fuel and compare them with those of the conventional Jet A-1 fuel. The spray experiments are performed at different nozzle operating conditions under standard ambient conditions. The near nozzle macroscopic spray characteristics are determined from the shadowgraph images. Near the nozzle exit, a thorough statistical analysis show that the liquid sheet dynamics of GTL fuel is different from that of Jet A-1 fuel. However, further downstream, the microscopic spray characteristics of GTL fuel are comparable to those of the Jet A-1 fuel.

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