caa a22 4500 445371668 CHVBK 20180317142949.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00340-010-4130-7 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4130-7 Analysis of uncertainties in instantaneous soot volume fraction measurements using two-dimensional, auto-compensating, laser-induced incandescence (2D-AC-LII) [Elektronische Daten] [B. Crosland, M. Johnson, K. Thomson] Laser-induced incandescence (LII) is an optical measurement technique capable of measuring soot volume fraction over a wide range of conditions. However, development of two-dimensional auto-compensating LII (2D-AC-LII) in the literature has been limited and until now, instantaneous measurements have not been demonstrated. In this paper, we successfully demonstrate instantaneous 2D-AC-LII soot volume fraction (SVF) measurements in an ethylene-air co-annular diffusion flame. Results were then used to support a detailed uncertainty analysis based on a Monte-Carlo simulation. Agreement between both the instantaneous and average SVF measurements with published data from attenuation measurements under identical conditions was found to be good. Uncertainties are discussed both in terms of an overall accuracy of the SVF measurement, which is strongly dominated by uncertainty in the optical properties of soot, and the comparative uncertainties with optical properties fixed. The uncertainty in an instantaneous 2D determination of SVF for a comparative measurement is dominated by photon shot noise, and in regions of high soot volume fraction it is below 25% (95% confidence interval). Shot noise uncertainty could be further reduced with additional pixel averaging at the expense of spatial resolution. This diagnostic shows significant promise for quantitative planar soot concentration measurements within turbulent flames. Crown in Right of Canada, 2010 Crosland B. Department of Mechanical and Aerospace Engineering, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut Johnson M. Department of Mechanical and Aerospace Engineering, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut Thomson K. National Research Council of Canada, K1A 0R6, Ottawa, Ontario, Canada aut Applied Physics B Springer-Verlag 102/1(2011-01-01), 173-183 0946-2171 102:1<173 2011 102 340 https://doi.org/10.1007/s00340-010-4130-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4130-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Crosland B. Department of Mechanical and Aerospace Engineering, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut NATIONALLICENCE 700 1- Johnson M. Department of Mechanical and Aerospace Engineering, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut NATIONALLICENCE 700 1- Thomson K. National Research Council of Canada, K1A 0R6, Ottawa, Ontario, Canada aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/1(2011-01-01), 173-183 0946-2171 102:1<173 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer