Fuel Structure and Pressure Effects on the Formation of Soot Particles in Diffusion Flames

Abstract

Studies emphasizing the effects of fuel concentration and operating pressure on the formation of soot particles have been conducted in a series of laminar diffusion flames. These experiments have shown that fuel concentration has a measurable effect on the amount of soot formed in the flame. However, a simple, constant proportionality between the fuel concentration and soot volume fraction has not been found to apply for the range of flow conditions studied. This observation is believed to be a result of flame residence time and diffusion effects which mitigate the consequences of reduced initial fuel concentration. Comparisons with simple laminar diffusion flame models are currently being used to investigate the relationship between initial fuel concentration and local flame concentration fields. Similar studies of soot formation in laminar diffusion flames as a function of operating pressure have also been completed for ethene, ethane and propene fuel species. Keywords: Soot formation, Soot particles, Diffusion flames.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1990
Accession Number
ADA223321

Entities

People

  • Robert J. Santoro

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • C4I
  • Cyber
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Buoyancy
  • Combustion
  • Data Analysis
  • Diffusion
  • Diffusion Coefficient
  • Distribution Functions
  • High Pressure
  • Light Scattering
  • Measurement
  • Mechanical Engineering
  • Optical Properties
  • Particle Size
  • Particles
  • Refractive Index
  • Three Dimensional
  • Turbines
  • Turbulent Mixing

Readers

  • Internal Combustion Engine (ICE) Technology.
  • Organic Chemistry
  • Plasma Physics.