Curvature in soot nanostructure: Origins and tests

Chung Hsuan Huang, Joseph P. Abrahamson, Randy Lee Vander Wal

Research output: Contribution to conferencePaper

Abstract

The underlying mechanism associated with increased oxygen levels in the yet fuel-rich, soot-forming regions is associated with C5 ring formation, leading to the observed curvature in the lamellae of the soot, using HRTEM. Laboratory studies using a premixed flat flame burner under varied equivalence ratios tested this hypothesis using a surrogate jet fuel for which chemical kinetics can be calculated in addition to the actual (jet) fuels. HRTEM results of sampled soot showed curvature with partial premixing with the FT fuel, and absence of curvature with the aromatic fuel with φ as the operative variable, thereby supporting the hypothesis. Comparative results from partially premixed gas-jet and Bunsen-style flames are reported for comparison.

Original languageEnglish (US)
StatePublished - Jan 1 2016
Event2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016 - Princeton, United States
Duration: Mar 13 2016Mar 16 2016

Other

Other2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016
CountryUnited States
CityPrinceton
Period3/13/163/16/16

Fingerprint

Soot
soot
jet engine fuels
Nanostructures
Jet fuel
curvature
flames
premixing
gas jets
burners
lamella
Fuel burners
Reaction kinetics
equivalence
reaction kinetics
Gases
Oxygen
rings
oxygen

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Chemical Engineering(all)

Cite this

Huang, C. H., Abrahamson, J. P., & Vander Wal, R. L. (2016). Curvature in soot nanostructure: Origins and tests. Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States.
Huang, Chung Hsuan ; Abrahamson, Joseph P. ; Vander Wal, Randy Lee. / Curvature in soot nanostructure : Origins and tests. Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States.
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Huang, CH, Abrahamson, JP & Vander Wal, RL 2016, 'Curvature in soot nanostructure: Origins and tests' Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States, 3/13/16 - 3/16/16, .

Curvature in soot nanostructure : Origins and tests. / Huang, Chung Hsuan; Abrahamson, Joseph P.; Vander Wal, Randy Lee.

2016. Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States.

Research output: Contribution to conferencePaper

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AU - Huang, Chung Hsuan

AU - Abrahamson, Joseph P.

AU - Vander Wal, Randy Lee

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Y1 - 2016/1/1

N2 - The underlying mechanism associated with increased oxygen levels in the yet fuel-rich, soot-forming regions is associated with C5 ring formation, leading to the observed curvature in the lamellae of the soot, using HRTEM. Laboratory studies using a premixed flat flame burner under varied equivalence ratios tested this hypothesis using a surrogate jet fuel for which chemical kinetics can be calculated in addition to the actual (jet) fuels. HRTEM results of sampled soot showed curvature with partial premixing with the FT fuel, and absence of curvature with the aromatic fuel with φ as the operative variable, thereby supporting the hypothesis. Comparative results from partially premixed gas-jet and Bunsen-style flames are reported for comparison.

AB - The underlying mechanism associated with increased oxygen levels in the yet fuel-rich, soot-forming regions is associated with C5 ring formation, leading to the observed curvature in the lamellae of the soot, using HRTEM. Laboratory studies using a premixed flat flame burner under varied equivalence ratios tested this hypothesis using a surrogate jet fuel for which chemical kinetics can be calculated in addition to the actual (jet) fuels. HRTEM results of sampled soot showed curvature with partial premixing with the FT fuel, and absence of curvature with the aromatic fuel with φ as the operative variable, thereby supporting the hypothesis. Comparative results from partially premixed gas-jet and Bunsen-style flames are reported for comparison.

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Huang CH, Abrahamson JP, Vander Wal RL. Curvature in soot nanostructure: Origins and tests. 2016. Paper presented at 2016 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2016, Princeton, United States.