- Author
-
Speitel, L. C.
- Title
- Fourier Transform Infrared Analysis of Combustion Gases.
- Coporate
- Federal Aviation Administration, Atlantic City International Airport, NJ
- Journal
-
Journal of Fire Sciences,
Vol. 20,
No. 5,
349-371,
September 2002
- Sponsor
- Federal Aviation Administration, Washington, DC
- Report
-
DOT/FAA/AR-01/88; AIR-120,
October 2001,
27 p.
- Distribution
- AVAILABLE FROM: Federal Aviation Administration William J. Hughes Technical Center's Fire Safety Section's Full-Text technical reports page (in Adobe Acrobat portable document format [PDF]): http//www.fire.tc.faa.gov/reports/report.stm AVAILABLE FROM National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161. Telephone: 1-800-553-6847 or 703-605-6000; Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847; Website: http://www.ntis.gov AVAILABLE FROM: Federal Aviation Administration William J. Hughes Technical Center's Fire Safety Section's Full-Text technical reports page: http://www.fire.tc.faa.gov/reports/report.stm
- Keywords
-
combustion gases
|
smoke detection
|
fire detection
|
FT-IR
|
spectroscopy
|
sampling
|
response time
|
cone calorimeters
|
toxicity
|
neural networks
- Identifiers
- gas monitoring; nonflaming tests; Nondispersive Infrared (NDIR) gas analyzers
- Abstract
- The Federal Aviation Administration (FAA) has developed a unique extractive Fourier Transform Infrared (FTIR) system to analyze rapidly changing moist fire gas concentrations as a function of time. The system was designed to eliminate numerous errors generated by state-of-the-art FTIR systesm for fire gas analysis. In addition, the path length, cell volume, sample flow rate, and system temperature were optimized to provide a rapid response and a sufficient dynamic range to detect gas concentrations generated in the cone calorimeter. A nonlinear classical least squares method was developed to analyze the FTIR data and generate the concentration histories and confidence limits of the 16 fire gases. Results of the technique are presented for flaming and nonflaming combustion tests of a mix of six common plastics.