- Author
-
Puri, R.
|
Santoro, R. J.
- Title
- Influence of Soot Particles on CO Production in Diffusion Flames.
- Coporate
- Pennsylvania State Univ., University Park
- Sponsor
- National Institute of Standards and Technology, Gaithersburg, MD
- Report
-
Session C-4,
1990,
4 p.
- Contract
- NIST-GRANT-60NAN8700706
NIST-GRANT-60NANB01035
- Book or Conf
- Combustion Institute/Eastern States Section. Chemical and Physical Process in Combustion. Fall Technical Meeting, 1990. December 3-5, 1990,
Orlando, FL,
126/1-4 p.,
1990
- Keywords
-
soot
|
carbon monoxide
|
diffusion flames
|
quenching
|
oxidation
|
hydroxyl radicals
- Abstract
- In recent years, numerous investigations have focussed on CO production and emission from fires and diffusion flames since CO is widely recognized as the most serious combustion product resulting from fires. High concentrations of CO as well as soot characterize typical fire situations and it has been recognized that there may be a relationship between the CO and soot concentrations observed in fires. In order to avoid the need for detailed kinetic modeling in these complex reacting flows, several workers have pursued approaches emphasizing correlations. While some workers have tried to directly correlate observed CO and soot concentrations, others have used the conserved scalar approach to relate CO as well as soot concentrations with the local equivalence ratio. In the present study, a more fundamental understanding of the nature of the interaction between CO and soot is sought. Two possible mechanisms, radiative quenching and oxidation competition by soot for hydroxyl radicals, are examined with respect to their effect on CO concentration.