Library Subscription: Guest
Home Archives Officers Future meetings American Society of Thermal and Fluids Engineering
First Thermal and Fluids Engineering Summer Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

BAYESIAN INFERENCE OF SOOT VOLUME FRACTION THROUGH AUTO-CORRELATED LASER-INDUCED INCANDESCENCE

DOI: 10.1615/TFESC1.cbf.013233
pages 29-42

Paul J. Hadwin
Department of Mechanical and Mechatronics Engineering, University of Waterloo 200 University Ave. W, Waterloo, ON, N2L 3G1, Canada

Timothy A. Sipkens
Department of Mechanical and Mechatronics Engineering, University of Waterloo 200 University Ave. W, Waterloo, ON, N2L 3G1, Canada

Kyle J. Daun
Department of Mechanical and Mechatronics Engineering, University of Waterloo 200 University Ave. W, Waterloo, ON, N2L 3G1, Canada

K. A. Thompson
Measurement Science for Emerging Technologies, National Research Council of Canada 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada

David R. Snelling
Measurement Science for Emerging Technologies, National Research Council of Canada 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada


KEY WORDS: laser induced incandescence, soot volume fraction, Bayesian analysis, inverse analysis, uncertainty quantification, combustion diagnostics

Abstract

Auto-correlated laser-induced incandescence (AC-LII) infers the soot volume fraction (SVF) by comparing the spectral incandescence from laser-energized soot particles to the pyrometrically-inferred peak soot temperature. This calculation requires detailed knowledge of the spectral absorption function of soot, which is subject to considerable uncertainty. This paper presents a Bayesian methodology that can be used to quantify the uncertainty associated with this measurement. While standard AC-LII analysis provide a point-estimates of the SVF, Bayesian inference estimates the posterior probability density, which will allow scientists and engineers to better assess the reliability of AC-LII inferred SVF in the context of environmental regulations and competing diagnostics.

Purchase $20.00 Check subscription Publication Ethics and Malpractice Recommend to my Librarian Bookmark this Page