Laser-Based Imaging of Species and Temperature During Gas-Fired
Combustion
SRI assisted Tokyo Gas in developing optical temperature and species
measurement and imaging strategies that will monitor the reacting
gas flow in burners and flames. These new gas sensing tools will aid
the design of new generations of combustors for a variety of
applications, particularly the development of materials processing
furnaces with homogeneous temperature distribution. Measurements of
gas temperature are vital to ensure a uniform temperature distribution
and to evaluate and understand the combustion processes in the furnace
such as NOx production.
The research was performed in SRI's laboratories in collaboration with
a visiting scientist from Tokyo Gas. Rayleigh scattering and
Laser-induced-fluorescence (LIF) experiments were performed on the
hydroxyl radical (OH) and the nitric oxide molecule (NO) and were
accompanied by modeling studies to test field strategies for
temperature measurements. We have found that such collaborative
investigations provide effective means both for technology development
and for transfer of knowledge and experience for practical applications.
Principal Investigator
- Gregory P. Smith, E-mail: <gregory.smith@sri.com>
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(12/21/01)
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