Heat Feedback to the Fuel Surface in Pool Fires.
Heat Feedback to the Fuel Surface in Pool Fires.
(1051 K)
Hamins, A.; Fischer, S. J.; Kashiwagi, T.; Klassen, M.
E.; Gore, J. P.
NIST SP 971; August 2001.
NIST SP 971: "Collected Reports and Publications by the
National Institute of Standards and Technology on Heat
Flux Gage Calibration and Usage.", 2001.
Combustion Science and Technology, Vol. 97, No. 1-3,
37-62, 1994.
Available from:
For More Information on NIST SP 971 visit: WEBSITE:
http://www.bfrl.nist.gov/866/heatflux/index.htm
Keywords:
pool fires; liquid fuels; burning rate; hydrocarbons;
heat flux; heat balance; measuring instruments;
conductive heat transfer
Abstract:
A series of measurements designed to investigate the
heat feedback in pool fires burning liquid fuels are
reported. Such measurements are essential for the
development and validation of detailed models which
predict the burning rate of liquid hydrocarbons and
solid polymers. The radial variation of the local
radiative and local net heat flux incident on the
surface of 0.30 m diameter pool fires were measured. A
water-cooled, nitrogen purged, narrow view-angle gauge
was developed to measure the radiative flux incident on
the fuel surface. Measurements of the mass burning rate
in a burner composed of annular rings was used to
estimate the local heat feedback. A number of different
fuels were studied, yielding flames with a wide range of
heat release rates and luminosities. Consideration of
the heat balance for a control volume enclosing the
liquid pool indicated that radiation was an important
component of the heat feedback for non-luminous fires
and a dominant component in luminous fires.
