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http://dx.doi.org/10.6108/KSPE.2019.23.2.053

Development of LIBS Plug for Combustor Diagnosis  

Jun, Hyung Min (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Hyunwoo (Department of Mechanical and Aerospace Engineering, Seoul National University)
Yoh, Jai-ick (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.2, 2019 , pp. 53-59 More about this Journal
Abstract
LIBS plug, a simplified laser-induced breakdown spectroscopy(LIBS) device with the purpose of measuring the fuel distribution inside the combustion chamber, was developed and manufactured. The LIBS plug receives only two wavelengths (H:656.3 nm, O: 777 nm) that are closely related to the equivalence ratio in the overall spectrum. The calibration curve between the signal of the LIBS plug and the equivalence ratio was constructed, and the fuel distribution of gasoline-air and LPG-air mixtures was measured using the LIBS plug.
Keywords
Laser-Induced Breakdown Spectroscopy; Equivalence Ratio;
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