Results 21 to 30 of about 253 (181)

Soot Volume Fraction Measurements by Auto-Compensating Laser-Induced Incandescence in Diffusion Flames Generated by Ethylene Pool Fire

open access: yesFrontiers in Mechanical Engineering, 2021
The main characteristics of pool fire flames are flame height, air entrainment, pulsation of the flame, formation and properties of soot particles, mass burning rate, radiation feedback to the pool surface, and the amount of pollutants including soot ...
Juan J. Cruz    +8 more
doaj   +1 more source

Laser-induced incandescence: detection issues [PDF]

open access: yesApplied Optics, 1996
Theoretical predictions suggest that soot particle size and local gas temperature affect both the spectral intensity and the temporal evolution of laser-induced incandescence. A discussion of both the physical structure and the theoretical absorption models of soot aggregates is presented, suggesting that the soot particle size relevant to laser ...
openaire   +2 more sources

Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
After aerosol deposition from the atmosphere, black carbon (BC) takes part in the snow albedo feedback contributing to the modification of the Arctic radiative budget.
M. Zanatta   +7 more
doaj   +1 more source

Special issue: laser-induced incandescence [PDF]

open access: yesApplied Physics B, 2013
Laser-induced incandescence (LII) has become a laser diagnostic commonly used for the concentration measurement and size characterization of nanoparticles. Most of the LII applications are related to the soot particle detection in combustion processes, but there is also a growing interest for monitoring non-soot nanoparticles during their synthesis ...
openaire   +1 more source

Climate-relevant properties of black carbon aerosols revealed by in situ measurements: a review

open access: yesProgress in Earth and Planetary Science, 2023
Light-absorbing aerosols affect atmospheric radiation, dynamics, and precipitations through shortwave absorption in the atmosphere and snowpack. Black carbon (BC) is considered the most significant contributor to global shortwave absorption among all the
Nobuhiro Moteki
doaj   +1 more source

Comparison of co-located refractory black carbon (rBC) and elemental carbon (EC) mass concentration measurements during field campaigns at several European sites [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
The mass concentration of black carbon (BC) particles in the atmosphere has traditionally been quantified with two methods: as elemental carbon (EC) concentrations measured by thermal–optical analysis and as equivalent black carbon (eBC) concentrations ...
R. E. Pileci   +17 more
doaj   +1 more source

Effects of dimethyl ether on soot formation in premixed laminar flame by laser induced incandescence method

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2020
The control of PM emission is a rather complicated problem to be solved both for diesel engine and GDI engines. There are vast factors affecting PM emission, the fuel, A/F, combustion temperature and so on.
Zengqiang Zhu   +4 more
doaj   +1 more source

In-Situ Characterization of Nanoparticles by Polarized Light Scattering and Laser-Induced Incandescence

open access: yesKONA Powder and Particle Journal, 2014
Two different optical methods for the determination of particle size distributions in the nanometer range are described. One method uses the scattering of polarized light at different angles and applies a regularized
Reiner Weichert
doaj   +1 more source

Experimental Study of Coflow Propane—Air Laminar Diffusion Flames at Subatmospheric Pressures

open access: yesApplied Sciences, 2021
The effect of pressure on the flame’s physical structure and soot formation of the coflow propane—air laminar diffusion flames was studied experimentally at subatmospheric pressures from 30 to 101 kPa.
Jiajie Yao, Jiahao Liu, Jian Wang
doaj   +1 more source

Experimental study on soot formation and primary particle size in oxy-combustion ethylene diffusion flames under CO2 substitution for N2

open access: yesCase Studies in Thermal Engineering, 2023
This paper reports an experimental study on the effects of O2 concentration and CO2 concentration on soot volume fraction and primary particle size of flame centre in ethylene laminar co-diffusion flame.
Yindi Zhang   +4 more
doaj   +1 more source

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