Laser-induced incandescence calibration in a three-dimensional laminar diffusion flame

Fuentes, A.; Legros, Guillaume; El-Rabii, Hazem; Vantelon, Jean-Pierre; Joulain, P.; Torero, José L.

doi:10.1007/s00348-007-0364-5

Cited by 20 publications

(12 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The measured values of K e are used to obtain the SVF according to Eq. (13) and an E(m) value of 0.26, for calibration of LII and further comparison with other studies, as shown in the next subsection. Figure 9 shows LII images for each case considered.…”

Section: Measured Extinction Coefficient K Ementioning

confidence: 80%

“…Shaddix et al [9,10] exploited these combined measurements to produce a popular database of quantitative soot measurements in laminar hydrocarbon diffusion flames. The same technique was also applied by other researchers in the investigations of various flames, such as laminar diffusion flames [11][12][13], laminar premixed flames [14][15][16] and turbulent diffusion flames [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High spatial resolution laser cavity extinction and laser-induced incandescence in low-soot-producing flames

et al. 2015

View full text Add to dashboard Cite

Accurate measurement techniques for in situ determination of soot are necessary to understand and monitor the process of soot particle production. One of these techniques is line-of-sight extinction, which is a fast, low-cost and quantitative method to investigate the soot volume fraction in flames. However, the extinction-based technique suffers from relatively high measurement uncertainty due to low signal-to-noise ratio, as the single-pass attenuation of the laser beam intensity is often insufficient. Multi-pass techniques can increase the sensitivity, but may suffer from low spatial resolution. To overcome this problem, we have developed a high spatial resolution laser cavity extinction technique to measure the soot volume fraction from low-soot-producing flames. A laser beam cavity is realised by placing two partially reflective concave mirrors on either side of the laminar diffusion flame under investigation. This configuration makes the beam convergent inside the cavity, allowing a spatial resolution within 200 μm, whilst increasing the absorption by an order of magnitude. Three different hydrocarbon fuels are tested: methane, propane and ethylene. The measurements of soot distribution across the flame show good agreement with results using laser-induced incandescence (LII) in the range from around 20 ppb to 15 ppm.

show abstract

Section: Measured Extinction Coefficient K Ementioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

High spatial resolution laser cavity extinction and laser-induced incandescence in low-soot-producing flames

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Plateau-regime LII requires calibration by comparing LII emission measurements to results from another calibrated technique (e.g. extinction measurements as in [15][16][17][18], or cavity ring-down spectroscopy as in [19][20][21][22]). These secondary techniques are either applied simultaneously or are used to quantify soot volume fraction in a reference flame that is subsequently used to calibrate the LII measurement.…”

Section: Introductionmentioning

confidence: 99%

Analysis of uncertainties in instantaneous soot volume fraction measurements using two-dimensional, auto-compensating, laser-induced incandescence (2D-AC-LII)

2010

View full text Add to dashboard Cite

“…Gaseous fueled burners are often used to generate soot for various applications in aerosol science, such as instrument calibration (Fuentes et al 2007;Onasch et al 2012), soot morphology studies Pagels et al 2009;Ghazi and Olfert 2013), and optical studies (Zhang et al 2008;Cross et al 2010). Different soot properties may be of interest depending on the application.…”

Section: Introductionmentioning

confidence: 99%

Mass, Mobility, Volatility, and Morphology of Soot Particles Generated by a McKenna and Inverted Burner

Ghazi

Tjong

Soewono

et al. 2013

Aerosol Science and Technology

View full text Add to dashboard Cite

Particle mass, mobility, volatile mass fraction, effective density, mass concentration, mass-mobility exponent, and particle morphology were measured from soot generated from a premixed flame (McKenna burner) and an inverted diffusion flame over a range of equivalence ratios. It was found that the mass fraction of volatile material on the soot from the McKenna burner could be up to 0.83 at a high equivalence ratio, but there was no measurable volatile material on the soot from the inverted burner. The inverted burner can produce soot at different mass-mobility exponents, ranging from 2.23 to 2.54, over a range of global equivalence ratios of 0.53-0.67, while the mass-mobility exponent ranges from 2.19 to 2.99 for fresh soot and 2.19 to 2.81 for denuded soot for the McKenna burner at equivalence ratios of 2.0-3.75. Transmission electron microscopy analysis of inverted burner soot shows that a range of particle morphologies is present at a given global equivalence ratio, likely due to different local equivalence ratios and flame conditions in the diffusion flame. Primary particle diameter tends to increase with aggregate size, which could contribute to the mass-mobility exponent being well above 2.

show abstract

Laser-induced incandescence calibration in a three-dimensional laminar diffusion flame

Cited by 20 publications

References 28 publications

High spatial resolution laser cavity extinction and laser-induced incandescence in low-soot-producing flames

High spatial resolution laser cavity extinction and laser-induced incandescence in low-soot-producing flames

Analysis of uncertainties in instantaneous soot volume fraction measurements using two-dimensional, auto-compensating, laser-induced incandescence (2D-AC-LII)

Mass, Mobility, Volatility, and Morphology of Soot Particles Generated by a McKenna and Inverted Burner

Contact Info

Product

Resources

About