- Author
-
Hawkins, R. L.
|
Rao, K. N.
- Title
- Standard Aircraft Diffusion Flame: Spectral Characteristics and a Feasibility Study for Developing an Alternate Calibration Source for Aircraft Optical Fire Detection Systems. Final Report. March 31, 1983-September 30, 1984.
- Coporate
- Ohio State Univ., Columbus, OH
- Sponsor
- Aero Propulsion Lab., Wright Patterson AFB, OH
- Report
-
AFWAL-TR-84-2080,
December 30, 1984,
23 p.
- Keywords
-
diffusion flames
|
aircraft fuels
|
fire detection systems
|
calibrating
|
soot
|
carbon dioxide
|
fire detection
|
radiant flux profile
|
smoke detectors
|
spectrometers
|
thermal radiation
- Identifiers
- detection
- Abstract
- The standard aircraft diffusion flame source presents practical difficulties due to its lack of controllability and its production of large amounts of smoke and soot. A source which is more convenient to handle, but which emulates the spectral and power characteristics of the standard flame, might prove useful. The requirements of such a flame were evaluated by measuring the spectral and power characteristics of a standard aircraft diffusion flame over the spectral range 2.5 to 20 microns. The total power output in this range was on the order of 1000 watts. About one-fourth of this was from the 4.4 micron carbon dioxide emission band; a small amount was due to weaker emissions of water vapor and carbon dioxide; the remainder was due to thermal emission from soot particles.