Coal analysis by laser-induced breakdown spectroscopy: a tutorial review

S Sheta, MS Afgan, Z Hou, SC Yao, L Zhang… - Journal of Analytical …, 2019 - pubs.rsc.org
Coal is one of the world's most abundant primary energy sources. Real-time coal analysis
technology is imperative for coal blending, combustion optimization, pollution reduction, and …

Spectrometer-based combustion monitoring for flame stoichiometry and temperature control

C Romero, X Li, S Keyvan, R Rossow - Applied Thermal Engineering, 2005 - Elsevier
Conventional combustion control systems for multi-burner furnaces rely on simplified
temperature measurement schemes away from the flame and single-point exhaust …

Ignition of turbulent swirling n-heptane spray flames using single and multiple sparks

T Marchione, SF Ahmed, E Mastorakos - Combustion and Flame, 2009 - Elsevier
This paper examines ignition processes of an n-heptane spray in a flow typical of a liquid-
fuelled burner. The spray is created by a hollow-cone pressure atomiser placed in the centre …

Enhancement of optical emission from laser-induced plasmas by combined spatial and magnetic confinement

LB Guo, W Hu, BY Zhang, XN He, CM Li, YS Zhou… - Optics …, 2011 - opg.optica.org
To enhance optical emission in laser-induced breakdown spectroscopy, both a pair of
permanent magnets and an aluminum hemispherical cavity (diameter: 11.1 mm) were used …

Measurements of hydrocarbons using laser-induced breakdown spectroscopy

F Ferioli, SG Buckley - Combustion and Flame, 2006 - Elsevier
Methods of quickly and rapidly measuring gas composition in combustion systems are of
great practical interest. Optical methods such as Raman spectroscopy are quite useful in …

Laser-induced breakdown spectroscopy of gas mixtures of air, CO2, N2, and C3H8 for simultaneous C, H, O, and N measurement

V Sturm, R Noll - Applied Optics, 2003 - opg.optica.org
Laser-induced breakdown spectroscopy (LIBS) was applied for simultaneous measurement
of the elements C, H, N, and O in CO_2–air, C_3H_8–CO_2, and C_3H_8–N_2 gas …

Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy

LB Guo, ZQ Hao, M Shen, W **ong, XN He, ZQ **e… - Optics express, 2013 - opg.optica.org
To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy,
the plasma produced by a Nd: YAG laser from steel targets was confined by a cavity. A …

Sensitivity, stability, and precision of quantitative Ns-LIBS-based fuel-air-ratio measurements for methane-air flames at 1–11 bar

PS Hsu, M Gragston, Y Wu, Z Zhang, AK Patnaik… - Applied Optics, 2016 - opg.optica.org
Nanosecond laser-induced breakdown spectroscopy (ns-LIBS) is employed for quantitative
local fuel-air (F/A) ratio (ie, ratio of actual fuel-to-oxidizer mass over ratio of fuel-to-oxidizer …

High-pressure 1D fuel/air-ratio measurements with LIBS

Y Wu, M Gragston, Z Zhang, PS Hsu, N Jiang… - Combustion and …, 2018 - Elsevier
Abstract Quantitative, one-dimensional (1D), single-laser-shot, fuel–air ratio (FAR)
measurements in both laminar and turbulent methane–air flames were conducted using time …

Laser-induced breakdown spectroscopy as an analytical tool for equivalence ratio measurement in methane–air premixed flames

P Stavropoulos, A Michalakou, G Skevis… - Spectrochimica Acta Part …, 2005 - Elsevier
Laser-Induced Breakdown Spectroscopy has been applied to laminar premixed methane–
air flames in order to obtain, for the first time, quantitative measurements of atomic species …