Monte Carlo Simulations of Radiative Transfer in a House Including Specular and Diffuse Reflections for the Evaluation of Two Wavelength Optical Fire Detectors.
Monte Carlo Simulations of Radiative Transfer in a House
Including Specular and Diffuse Reflections for the
Evaluation of Two Wavelength Optical Fire Detectors.
(236 K)
Sivathanu, Y. R.; Gore, J. P.; Zhu, Y. J.
NISTIR 6242; October 1998.
National Institute of Standards and Technology. Annual
Conference on Fire Research: Book of Abstracts.
November 2-5, 1998, Gaithersburg, MD, Beall, K. A.,
Editor(s), 5-6 pp, 1998.
Sponsor:
National Institute of Standards and Technology,
Gaithersburg, MD
Available from:
National Technical Information Service
Order number: PB99-102519
Keywords:
fire research; fire science; fire suppression; fire
detectors; monte carlo method; radiative heat transfer;
evaluation; thermal radiation
Abstract:
Fire detectors based on sensing thermal radiation from a
strating fire have the potential to provide early
warning and improve fire safety and reduce fire loss.
However, these detectors must rely on sensing and
discriminating radiation signals of a starting fire from
those of common sources such as the sun, room lights and
others. The radiaiton signal incident on a detector may
have undergone multiple relfections at the walls with
complex properties and configuration factors. Effective
radiation temperature based on measurement of
intensities at two wavelengths is one of the fire
characteristics used in many flame sensors.
