Detection of the unburned methane in a 213 kW combustor by means of a portable diode laser gas analyzer

G. Baldacchini, L. De Dominicis, R. Fantoni, M. Giorgi, R. Cipriani, M. D'apice, S. Giammartini, M. Marrocco

Research output: Contribution to journalArticle


In recent years a big effort has been made by gas turbine manufacturers in order to design industrial combustion apparata with high efficiency. Laser based diagnostic methods have become now a powerful tool for monitoring the performance of these devices. A portable high sensitive diode laser gas analyzer has been used to detect the unburned methane in the exhaust of a 213 kW combustor (General Electric DLE). The main features of the methane analyzer are a tunable diode laser operating at room temperature emitting radiation at 1.65 μm and a Chernin optical multipass cell. The gas analyzer is controlled by a computer program, which can supply real time concentration measurements. The latter characteristic coupled to its limited dimensions allow for in situ implementation of the spectroscopic tool.
Original languageEnglish
Pages (from-to)142 - 149
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2001


All Science Journal Classification (ASJC) codes

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

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