Soot particle aerosol dynamics at high pressure

Stephen J. Harris, Ian M. Kennedy

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We have used detailed calculations to analyze the coagulation dynamics of a soot eerosol at high pressures (20 and 50 atm). We find that the soot size distribution is altered compared to lower-pressure conditions because the mean free path at high pressures is reduced to the point that the particles are similar in size to the mean free path. At lower pressures the form of the size distribution becomes constant ("self-preserving") in time, allowing optical measurements to be easily interpreted. However, we find that at pressures above about 5 atm the shape of the size distribution continually changes. As a result, proper and accurate interpretation of optical data at high pressures will be more difficult than at lower pressures.

Original languageEnglish (US)
Pages (from-to)390-397
Number of pages8
JournalCombustion and Flame
Volume78
Issue number3-4
DOIs
StatePublished - 1989

Fingerprint

Soot
soot
Aerosols
Particles (particulate matter)
aerosols
low pressure
mean free path
coagulation
optical measurement
preserving
Coagulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Mechanical Engineering

Cite this

Soot particle aerosol dynamics at high pressure. / Harris, Stephen J.; Kennedy, Ian M.

In: Combustion and Flame, Vol. 78, No. 3-4, 1989, p. 390-397.

Research output: Contribution to journalArticle

Harris, Stephen J. ; Kennedy, Ian M. / Soot particle aerosol dynamics at high pressure. In: Combustion and Flame. 1989 ; Vol. 78, No. 3-4. pp. 390-397.
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