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Measurement of Soot Concentration in Burner Diffusion Flames through Emission Spectroscopy with Particle Swarm Optimization [PDF]

open access: yesSensors
Measuring soot concentration in a burner flame is essential for an in-depth understanding of the formation mechanism and to abate its generation. This paper presents an improved emission spectroscopy (ES) method that uses an adaptive particle swarm ...
Zizhen Li, Ni Wan, Xiangchen Qian
doaj   +4 more sources

Development and testing of a soot particle concentration estimator using Lagrangian post-processing

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
Soot emissions from combustion devices are known to have harmful effects on the environment and human health. As the transportation industry continues to expand, the development of techniques to reduce soot emissions remains a significant goal of ...
Raymond Alexander   +3 more
doaj   +2 more sources

A novel soot concentration field estimator applied to sooting ethylene/air laminar flames

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
Soot formation modeling, when incorporated into computational fluid dynamics of industrial devices, can be numerically prohibitive. Nonetheless, there remains a significant push to predict soot formation, so as to aid in environmentally sustainable ...
L. Zimmer, S. Kostic, S. B. Dworkin
doaj   +2 more sources

A Long Short-Term Memory Neural Network for the Low-Cost Prediction of Soot Concentration in a Time-Dependent Flame

open access: yesEnergies, 2021
Particulate matter (soot) emissions from combustion processes have damaging health and environmental effects. Numerical techniques with varying levels of accuracy and computational time have been developed to model soot formation in flames. High-fidelity
Mehdi Jadidi   +2 more
doaj   +3 more sources

Experimental Study of Oxygen Depletion Effects on Soot Morphology and Nanostructure in Coflow Diffusion Aviation Fuel (RP-3) Flames

open access: yesEnergies, 2023
Oxygen concentration is a significant factor affecting soot formation and oxidation. However, there are few studies that have focused on the morphology and nanostructure characteristics of soot in aviation kerosene, oxygen-depleted combustion flames.
Jiaqi Guo   +5 more
doaj   +1 more source

Experimental study on the effect of hydrogen addition on methane/ethylene diffusion flame soot formation based on light extinction measurement

open access: yesEnergy Reports, 2021
In this study, the mixed diffusion flame soot of methane, ethylene and hydrogen were studied, and the two-dimensional light extinction measurement was applied to investigate the distribution characteristics of the ethylene flame soot concentration with ...
Yuhan Zhu   +4 more
doaj   +1 more source

Spectral reflectance of solar light from dirty snow: a simple theoretical model and its validation [PDF]

open access: yesThe Cryosphere, 2013
A simple analytical equation for the snow albedo as the function of snow grain size, soot concentration, and soot mass absorption coefficient is presented.
A. Kokhanovsky
doaj   +1 more source

Formation and Evolution of Soot in Ethylene Inverse Diffusion Flames in Ozone Atmosphere

open access: yesNanomaterials, 2023
Ozone is a prospective additive for enhancing and controlling combustion under lean or very lean conditions, and reduces NOx and particulate matter emissions simultaneously.
Yaoyao Ying, Dong Liu
doaj   +1 more source

Formation of Soot in Oxygen-Enriched Turbulent Propane Flames at the Technical Scale

open access: yesEnergies, 2020
Soot is an important component for heat transfer in combustion processes. However, it is also a harmful pollutant for humans, and strict emissions legislation motivates research on how to control soot formation and release. The formation of soot is known
Rikard Edland   +3 more
doaj   +1 more source

Numerical analysis of the effects of H2O and CO2 additions on the chemical reaction of soot formation

open access: yesNihon Kikai Gakkai ronbunshu, 2021
The effects of H2O and CO2 additions to n-heptane/air mixture on soot formation studied using detailed soot formation model. The simulation model is comprised of gas-phase reaction model and particle formation/growth model.
Yoshiki TAKATORI
doaj   +1 more source

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