Author: Richard Trent WainnerPublisher:
ISBN: 9780599716643
Category :
Languages : en
Pages : 0
Book Description
An Analytical and Quantitative Analysis of the Laser-induced Incandescence of Soot
Author: Richard Trent WainnerPublisher:
ISBN: 9780599716643
Category :
Languages : en
Pages : 0
Book Description
Quantitative Detection and Imaging of Soot Particles by Laser-induced Incandescence
Author: K. R. McManusSoot Analysis in Combustion Environments by Laser-induced Incandescence
Author: R. WainnerLaser Induced Incandescence and Laser Induced Breakdown Spectroscopy Based Sensor Development
Author: Kemal Efe EsellerPublisher:
ISBN:
Category : Incandescence
Languages : en
Pages :
Book Description
In this doctoral dissertation, two laser-based sensors were evaluated for different applications. Laser Induced Incandescence (LII) is a technique which can provide nonintrusive quantitative measurement of soot and it provides a unique diagnostic tool to characterize engine performance. Since LII is linearly proportional to the soot volume fraction, it can provide in situ, real time measurement of soot volume fraction with high temporal and spatial resolution. LII has the capability to characterize soot formation during combustion. The soot volume fraction from both flames and a soot generator was investigated with LII. The effects of experimental parameters, such as laser fluence, gate delay, gate width and various laser beam focusing, on LII signal was studied. Laser Induced Breakdown Spectroscopy (LIBS), a diagnostic tool for in situ elemental analysis, has been evaluated for on-line, simultaneous, multi-species impurity monitoring in hydrogen. LIBS spectra with different impurity levels of nitrogen, argon, and oxygen were recorded and the intensity of the spectral lines of Ar, O, N, and H observed were used to form calibration plots for impurities in hydrogen measurements. An ungated detection method for LIBS has been developed and applied to equivalence ratio measurements of CH4/air and biofuel/air. LIBS has also been used to quantitatively analyze the composition of a slurry sample. The quenching effect of water in slurry samples causes low LIBS signal quality with poor sensitivity. Univariate and multivariate calibration was performed on LIBS spectra of dried slurry samples for elemental analysis of Mg, Si and Fe. Calibration results show that the dried slurry samples give good correlation between spectral intensity and elemental concentration.
Analysis of Laser-induced Incandescence and Novel Soot Measurement Approaches
Author: B. MewesUsing Laser-Induced Incandescence to Measure Soot/Smoke Concentrations
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781792962073
Category : Science
Languages : en
Pages : 30
Book Description
Laser-induced incandescence offers great advantages in measuring soot concentrations. A brief summary of the technique and some illustrations of its capabilities is presented here. VanderWal, Randall L. Glenn Research Center NASA/CR-1997-206325, NAS 1.26:206325, E-11003 NAS3-27186; RTOP 963-70-0E...
Using Laser-Induced Incandescence to Measure Soot/Smoke Concentrations
Author: Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 830
Book Description
Laser-Induced Incandescence of Soot for High Pressure Combustion Diagnostics
Author: Daniel Dennis Emile CormierPublisher:
ISBN: 9780494765098
Category :
Languages : en
Pages :
Book Description
Author: Douglas J. Brown