A Mechanism to Interpret Diesel Fuel Atomization as it is Injected into an Engine Combustion Chamber

Paper #:
  • 2013-01-1411

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-1411
Citation:
Jawad, B. and Arslan, S., "A Mechanism to Interpret Diesel Fuel Atomization as it is Injected into an Engine Combustion Chamber," SAE Technical Paper 2013-01-1411, 2013, https://doi.org/10.4271/2013-01-1411.
Pages:
5
Abstract:
Understanding the disintegration mechanism, spray penetration, and spray motion is of great importance in the design of a high quality diesel engine. The atomization process that a liquid would undergo as it is injected into a high-temperature, high-pressure air, is investigated in this work. The purpose of this study is to gain further insight into the atomization mechanism, the variation over time in droplet size distribution and spray penetration. This is done based on effect of chamber pressure, injection pressure, and type of fuel. A laser diffraction method is used to determine droplet mean diameters, single injection with synchronized time mechanism allowed the time dependent studies. Obscuration signals are obtained through a digital oscilloscope from which arrival time of spray can be measured. The spray penetration correlation obtained is compared to other correlations obtained from different other techniques used in the literature.
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