Spray performance of alternative jet fuel based nanofuels at high-ambient conditions

Mohamed Soltan, Buthaina Al Abdulla, Alreem Al Dosari, Kumaran Kannaiyan, Reza Sadr

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dispersion of nanoparticles in pure fuels alters their key fuel physical properties, which could affect their atomization process, and in turn, their combustion and emission characteristics in a combustion chamber. Therefore, it is essential to have a thorough knowledge of the atomization characteristics of nanofuels (nanoparticles dispersed in pure fuels) to better understand their latter processes. This serves as the motivation for the present work, which attempts to gain a good understanding of the atomization process of the alternative, gas-to-liquid (GTL), jet fuel based nanofuels. The macroscopic spray characteristics such as spray cone angle, liquid sheet breakup, and liquid sheet velocity are determined by employing shadowgraph imaging technique. The effect of nanoparticles weight concentration and ambient pressures on the spray characteristics are investigated in a high pressurehigh temperature constant volume spray rig. To this end, a pressure swirl nozzle with an exit diameter of 0.8 mm is used to atomize the fuels. The macroscopic spray results demonstrate that the nanoparticles dispersion at low concentrations affect the near nozzle region. The spray liquid sheet breakup distance is reduced by the presence of nanoparticle due to the early onset of disruption in the liquid sheet. Consequently, the liquid sheet velocity in that spray region is higher for nanofuels when compared to that of pure fuels. Also, the ambient pressure has a significant effect on the spray features as reported in the literature.

Original languageEnglish
Title of host publicationFluids Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume7
ISBN (Electronic)9780791852101
DOIs
Publication statusPublished - 1 Jan 2018
EventASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018 - Pittsburgh, United States
Duration: 9 Nov 201815 Nov 2018

Other

OtherASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018
CountryUnited States
CityPittsburgh
Period9/11/1815/11/18

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Keywords

  • Alternative fuels
  • Fuel additives
  • Nanoparticles
  • Shadowgraph
  • Sprays

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Soltan, M., Al Abdulla, B., Al Dosari, A., Kannaiyan, K., & Sadr, R. (2018). Spray performance of alternative jet fuel based nanofuels at high-ambient conditions. In Fluids Engineering (Vol. 7). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201887387