Abstract

Fourier-transform infrared spectroscopy is used to monitor gases generated during chemical inhibition of JP-8 fuel pool fires burning in air. Gas samples are taken from a location that approximates the position of an individual who is using a handheld extinguisher to subdue the fire. These gas samples are flowed through a 10-m path-length multipass optical cell placed in the sample beam of a Fourier-transform infrared spectrometer. Gas samples are analyzed before and during application of C3F7H (trade name FM200) and CF3Br (Halon 1301) to the fire. It is shown that application of these halogenated hydrocarbons to JP-8 pool fires produces significant quantities of acid gases (HF and HBr) and of CF2O. A calculation of the concentrations (in parts in 106) of these gases and other gaseous combustion products, based on observed absorbances, is presented. We believe this is the first quantitative simultaneous measurement of HF, HBr, HCl, and CF2O production during chemical inhibition of real fires.

© 1996 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Application of tunable diode laser diagnostics for temperature and species concentration profiles of inhibited low-pressure flames

Robert G. Daniel, Kevin L. McNesby, and Andrzej W. Miziolek
Appl. Opt. 35(21) 4018-4025 (1996)

Laser-induced incandescence measurements of soot in turbulent pool fires

Kraig Frederickson, Sean P. Kearney, and Thomas W. Grasser
Appl. Opt. 50(4) A49-A59 (2011)

Middle ultraviolet spectroscopy of suppressant–flame interactions

A. E. S. Green, J. A. Vitali, D. E. Walter, and C. J. Kibert
Appl. Opt. 34(9) 1606-1607 (1995)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription