Chemical and Physical Properties of Soot as a Function of Fuel Molecular Structure in a Swirl-Stabilized Combustor

Himes, Richard; Hack, Richard; Samuelsen, G. S.

doi:10.1115/1.3239519

Cited by 8 publications

(3 citation statements)

References 8 publications

(9 reference statements)

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“…The morphology of the soot is agglomerates of smaller (-0.05 )ixa) spherical particles, which is consistent with the morphology and size observed in other combustor studies (e.g., [4,5,6,10,11]). An example of the size distribution derived from a scanning electron micrograph (SEM) of the extracted sample is compared to the optical measurement for an isooctane/toluene blend in Fig.…”

Section: Resultssupporting

confidence: 89%

“…Table 1 summarizes the composition and the actual smoke point found for each blend. The smoke points, while not identical, " Blend composition stated in volume percent Distance above base of burner in mm at which sooting first occurs c Wright Patterson AFB Source: [4] are equivalent within the achievable accuracy of the smoke point test (± 1 mm) shown by the error bands in Fig. 4.…”

Section: Journal Of Engineering For Gas Turbines and Powermentioning

confidence: 95%

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Optical Measurements of Soot Size and Number Density in a Spray-Atomized, Swirl-Stabilized Combustor

Wood

Samuelsen

1985

Journal of Engineering for Gas Turbines and Power

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In-flame optical measurements of soot particulates in a turbulent, recirculating (i.e., complex flow) model laboratory combustor are described. A nonintrusive optical probe based on large-angle (60 and 20 deg) intensity ratio scattering was used to yield a point measurement of soot particulate in the size range of 0.08 to 0.38 μm. A shale-derived JP-8 stock, isooctane, and mixtures of isooctane with various ring and aromatic compounds blended to yield the smoke point of the JP-8 stock were separately injected as a liquid spray through a twin-fluid atomizer. One blend was also introduced prevaporized through a hollow-cone nozzle. The addition of ring compounds to the base isooctane as well as operation on JP-8 increased the amount of soot produced, although the total amount of soot produced depended on fuel type for those fuels of equivalent smoke point. The spatial distribution of soot as well as the amount produced was found to be sensitive to nozzle atomization quality and injection momentum. The amount of soot produced was reduced by a reduction in fuel loading. However, injection of fuel in a prevaporized state both increased the amount of soot produced and changed spatially the region over which soot was distributed. Scanning electron micrographs of extracted samples established that the optical technique resolved the large particle wing of the soot size distribution.

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Section: Resultssupporting

confidence: 89%

Section: Journal Of Engineering For Gas Turbines and Powermentioning

confidence: 95%

Optical Measurements of Soot Size and Number Density in a Spray-Atomized, Swirl-Stabilized Combustor

Wood

Samuelsen

1985

Journal of Engineering for Gas Turbines and Power

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“…No analysis of the solvent organic fraction (SOF) of the soot has been carried out, however one of the authors (27,29) has considerable experience in this type of analysis for Diesel smoke samples where the SOF can vary from 1-90% of the smoke mass depending on the operating conditions. In an atmospheric pressure combustion investigation of gas turbine type smoke Samuelson et al (19) have found a significant SOF in the particulate material.…”

Section: Comparison Of the Reflectance And The Weight Techniques For mentioning

confidence: 99%

Smoke Emissions From Lean Well Mixed Gas Turbine Primary Zones

Abdul-Aziz

Andrews

1985

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels

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Smoke emissions for a Jet Mix flame stabiliser at lean gas turbine combustor primary zone conditions are reported at a 600K operating temperature and 1 bar pressure for kerosene. The influence of pressure loss was studied, this influences the fuel and air mixing and the liquid drop size and hence has an influence on smoke emissions. Two flame stabiliser designs were studied with different fuel and air mixing rates. The results show that even for lean well mixed situations factors that influence local fuel and mixing also influence smoke emissions.

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Ferrocene

Marr

Rockett²

1986

Journal of Organometallic Chemistry

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Chemical and Physical Properties of Soot as a Function of Fuel Molecular Structure in a Swirl-Stabilized Combustor

Cited by 8 publications

References 8 publications

Optical Measurements of Soot Size and Number Density in a Spray-Atomized, Swirl-Stabilized Combustor

Optical Measurements of Soot Size and Number Density in a Spray-Atomized, Swirl-Stabilized Combustor

Smoke Emissions From Lean Well Mixed Gas Turbine Primary Zones

Ferrocene

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