In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy

Taewoo Lee, N. Hegde, I. Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Laser-Induced breakdown spectroscopy is a powerful diagnostic method that can be applied to combustion systems for measurements of fuel-air ratios, fuel composition, and temperature. In this study, we specifically show the application of LIBS for in-situ flame temperature measurements at conditions up to moderately sooting conditions (equivalence ratio of 15 for methane-air flames). Comparisons with existing data obtained from thermocouple exhibit excellent agreement in weakly sooting flames and good agreement at higher equivalence ratios. The deviation at higher equivalence ratios is attributed to signal trapping due to soot and precursor species and also due to increase in hydrogen spectral signal at these conditions. These are factors that can be circumvented and do not preclude application of LIBS to highly sooting flames.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference
Pages713-718
Number of pages6
Volume1
DOIs
StatePublished - 2005
Event2005 ASME Summer Heat Transfer Conference, HT 2005 - San Francisco, CA, United States
Duration: Jul 17 2005Jul 22 2005

Other

Other2005 ASME Summer Heat Transfer Conference, HT 2005
CountryUnited States
CitySan Francisco, CA
Period7/17/057/22/05

Fingerprint

Laser induced breakdown spectroscopy
Soot
Thermocouples
Air
Temperature measurement
Methane
Hydrogen
Chemical analysis
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, T., Hegde, N., & Han, I. (2005). In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy. In Proceedings of the ASME Summer Heat Transfer Conference (Vol. 1, pp. 713-718). [HT2005-72517] https://doi.org/10.1115/HT2005-72517

In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy. / Lee, Taewoo; Hegde, N.; Han, I.

Proceedings of the ASME Summer Heat Transfer Conference. Vol. 1 2005. p. 713-718 HT2005-72517.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, T, Hegde, N & Han, I 2005, In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy. in Proceedings of the ASME Summer Heat Transfer Conference. vol. 1, HT2005-72517, pp. 713-718, 2005 ASME Summer Heat Transfer Conference, HT 2005, San Francisco, CA, United States, 7/17/05. https://doi.org/10.1115/HT2005-72517
Lee T, Hegde N, Han I. In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy. In Proceedings of the ASME Summer Heat Transfer Conference. Vol. 1. 2005. p. 713-718. HT2005-72517 https://doi.org/10.1115/HT2005-72517
Lee, Taewoo ; Hegde, N. ; Han, I. / In-situ diagnostics of combustion parameters using laser-induced breakdown spectroscopy. Proceedings of the ASME Summer Heat Transfer Conference. Vol. 1 2005. pp. 713-718
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