The Oxidation Potential Number: An Index to Evaluate Inherent Soot Reduction in D.I. Diesel Spray Plumes

Paper #:
  • 2015-01-1934

Published:
  • 2015-09-01
DOI:
  • 10.4271/2015-01-1934
Citation:
Graziano, B., Heuser, B., Kremer, F., Pischinger, S. et al., "The Oxidation Potential Number: An Index to Evaluate Inherent Soot Reduction in D.I. Diesel Spray Plumes," SAE Int. J. Engines 9(1):222-236, 2016, doi:10.4271/2015-01-1934.
Pages:
15
Abstract:
A new index to evaluate the inherent soot reduction in a diesel-like spray plume is proposed in this study. The index is named “Oxidation Potential Number” and was derived with the help of a computational fluid dynamics (CFD) software. C8 - C16 n-alkanes, 1-alcohols and di-n-ethers were studied with the help of this index over four part load engine operating conditions, representative of a C-class diesel vehicle. The CFD modelling results have shown that C8 molecules feature a higher potentiality to reduce the soot. Thus, C8 molecules were tested in a single cylinder diesel engine over the same operating conditions. In conclusion, the proposed index is compared with the soot engine out emission.
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