Real-time optical fuel-to-air ratio sensor for gas turbine combustors

Quang Viet Nguyen*, Rajiv K. Mongia, Robert W. Dibble

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

11 Scopus citations


A simple and low-cost instrument that non-intrusively measures the real-time fuel-to-air ratio (FAR) in a gas turbine combustor was developed. Initial application of this instrument was to obtain time-resolved measurements of the FAR in the premixer of a lean premixed prevaporized (LPP) combustor at inlet air pressures and temperatures as high as 17 atm 800 K, with liquid JP-8 as the fuel. Results quantitatively show the transient nature of the local FAR inside a LPP gas turbine combustor at actual operating conditions.

Original languageEnglish (US)
Pages (from-to)124-130
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1998 Advanced Sensors and Monitors for Process Industries and the Environment - Boston, MA, USA
Duration: Nov 4 1998Nov 5 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications


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