Study of Fire Induced Flow Along the Vertical Corner Wall. Part 2. Final Report.
Study of Fire Induced Flow Along the Vertical Corner
Wall. Part 2. Final Report.
NIST GCR 93-628; 61 p. April 1993.
Sponsor:National Institute of Standards and Technology,
Available from: National Technical Information Service
Order number: PB93-205623
corner tests; walls; building fires; flame height; flame
spread rate; heat flux; infrared photography; room fires
This paper describes a new experimental technique with
wide application which has been proven for corner fires.
To measure the flame spread rate of pyrolysis front
along vertically oriented flat and corner walls, it may
be necessary to measure transient temperature profiles
on the walls. Conventional thermocouple and visual
observation methods, however, have limitations due to
complexity of implementation and the inherent ambiguity
of visual observations due to interference from flames.
To overcome these limitations, automated infrared
imaging was applied for simultaneously collecting
temperature data in a relatively large wall surface
area. Results indicate that the infrared system with a
band-pass filter successfully avoids the flame
interference allowing measurements of temperature
distribution on the fire-heated wall, from which the
spread rate in any direction can be deduced. The
infrared camera without filters also can be used to
measure visible flame position as photographic and video