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Proceedings Paper

Dynamic detection of species concentration and distribution in pre-combustion gases by laser spectroscopy of infrared absorption
Author(s): Anhua Mei; Kendrick Aung
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Paper Abstract

This paper describes the development of spectrum computation and analysis for a single model and untunable laser spectroscopy to detect the species concentration and space distribution in pre-combustion gases. Absorption spectroscopy using infrared laser diode provides a dynamic, non-instructive, and in situ way to determine the concentration and distribution of the mixture of fuel gas and O2 in the pre-combustion gas stream. For species, wavelength suitable for absorption spectroscopy is determined using the spectra distributions of the species provided in HITRAN database. Inverse method and Abel algorithm are employed separately to retrieve the concentration of species and calculate the distribution of the measured gas. The results of the paper provide the foundation to develop a dynamic diagnostic instrument to monitor the state of gaseous species in hostile environments such as various industrial combustion systems.

Paper Details

Date Published: 24 August 2005
PDF: 12 pages
Proc. SPIE 5880, Optical Diagnostics, 58800J (24 August 2005); doi: 10.1117/12.618205
Show Author Affiliations
Anhua Mei, Lamar Univ. (United States)
Kendrick Aung, Lamar Univ. (United States)


Published in SPIE Proceedings Vol. 5880:
Optical Diagnostics
Leonard M. Hanssen; Patrick V. Farrell, Editor(s)

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