Experimental Measurements and Numerical Predictions of the Gasification of Finite Thickness Polymers.
Experimental Measurements and Numerical Predictions of
the Gasification of Finite Thickness Polymers.
Ritchie, S. J.; Kashiwagi, T.
NISTIR 5904; October 1996.
National Institute of Standards and Technology. Annual
Conference on Fire Research: Book of Abstracts.
October 28-31, 1996, Gaithersburg, MD, 101-102 pp, 1996.
Available from: National Technical Information Service
Order number: PB97-153514
fire research; fire science; gasification; thickness;
burning rate; cone calorimeters
During polymer combustion, there are two general
processes that influence the burning rate of the
material; the flame zone heat feedback to the polymer
surface and the corresponding gasification rate of the
polymer. The two processes are directly coupled. This
study focuses on the condensed-phase processes which
affect the gasification rate. Presented are the results
of an experimental and numerical study into the
influence of sample thickness and back surface boundary
condition on the gasification rate of thermoplastic
polymer materials under non-flaming conditions.
Typically, the influence of thickness is ignored in
theoretical developments because of the simplicity or
convenience in assuming a semi-infinite material.
However, in real applications of polymers, a
semi-infinite analysis may be inappropriate.