The effects of alumina nanoparticles as fuel additives on the spray characteristics of gas-to-liquid jet fuels

Kumaran Kannaiyan, Reza Sadr*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The use of metal nanoparticles as fuel additives have gained interest due to its positive influence on liquid fuels’ combustion and emission performance. Nanoparticles dispersion affects the hydrodynamic and thermo-physical properties of the liquid fuel, and in turn, its atomization, mixing and evaporation characteristics. This work investigates the influence of nanoparticles dispersion on the spray performance of alternative gas-to-liquid (GTL) jet fuel under atmospheric ambient conditions. The spray characteristics of GTL fuel with dispersed alumina nanoparticles are compared with those of the pure GTL fuel. The spray characteristics at the macroscopic and microscopic levels are measured using the optical diagnostic techniques of shadowgraph and phase Doppler anemometry, respectively. The nanoparticles dispersed in liquid fuel tend to slightly alter the transient nature of the spray formation, enhance the liquid sheet instability and reduce the liquid sheet breakup length when compared to those of the pure GTL fuel. Furthermore, the mean droplet sizes of GTL fuel dispersed with nanoparticles are smaller than those of the pure GTL fuel.

Original languageEnglish
Pages (from-to)93-103
Number of pages11
JournalExperimental Thermal and Fluid Science
Volume87
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Alumina nanoparticles
  • Gas-to-liquid jet fuel
  • Nanofuels
  • Phase Doppler anemometry
  • Sheet breakup length
  • Spray characteristics

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