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An experimental facility for determination of steady flame spread rate of materials employing the Quasi‐stationary flame front technique
Author(s) -
Bhatnagar Subodh Kumar,
Varshney B. S.,
Mohanty B.
Publication year - 1992
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.810160403
Subject(s) - radiant flux , flame spread , flame front , mechanics , heat flux , materials science , front (military) , nuclear engineering , mechanical engineering , optics , heat transfer , engineering , chemistry , combustion , physics , turbulence , organic chemistry
An experimental facility based on the Quasi‐stationary Flame Front Technique for determination of steady flame spread rate of materials at discrete levels of external radiant heat flux was developed. The method employs an external radiant heat source in front of which an element of a specimen of the material is positioned at a location corresponding to the desired level of external radiant heat flux. A specimen movement assembly, which can be operated manually, was designed for moving the specimen towards the stationary external radiant heat source such that the flame front could be maintained quasi‐stationary. The experimental technique employed is simple in operation yet is capable of yielding reliable flame fornt displacement–time data. In the paper the design considerations of the experimental facility, details of its components, calibration and typical experimental results obtained are presented.