Abstract
We describe a mathematical model to evaluate flammability parameters of
thermally thin thermoplastics in radiative ignition experiments.
The concept of a critical mass flux from the solid phase into the
flame is used as the criticality condition. Kinetic parameter values
are chosen by relating the Arrhenius parameters to the
`characteristic temperature' that is measured in Thermogravimetric
experiments. The specific application of our model we have in mind
is piloted ignition in the cone calorimeter.
M.I. Nelson, J. Brindley, and A.C. McIntosh. Ignition Properties of Thermally Thin Materials in the Cone Calorimeter: A Critical Mass Flux Model. Combustion Science and Technology, 113-114:221-241, 1996.
Abstract
We describe a mathematical model to evaluate the critical heat flux
required to ignite thermoplastics in radiative ignition experiments.
The concept of a critical mass flux from the solid phase into the
gas phase is used as the criticality condition. Using this criterion,
the solid temperature corresponding to the critical heat flux is related
to the `characteristic temperature' determined in
thermogravimetric experiments. We investigate the dependence
of the critical heat flux and critical surface temperature on the
value taken fro the critical mass flux. The specific application we
have in mind is piloted ignition in the cone calorimeter.
M.I. Nelson, J. Brindley, and A.C. McIntosh. Polymer Ignition. Mathematical and Computer Modelling, 24(8):39-46, October 1996.
Abstract
We describe a mathematical model to evaluate the retardancy effect of
inert additives on the flammability parameters of thermally thin
thermoplastics in radiative ignition experiments. The concept of
a critical mass flux from the solid phase into the flame is used
as the criticality condition for defining ignition. Kinetic parameter
values are chosen by relating the Arrhenius parameters to the
`characteristic temperature' measured in thermogravimetric experiments.
The specific application that we have in mind for our model is piloted
ignition in the cone calorimeter.
M.I. Nelson, J. Brindley, and A.C. McIntosh. Ignition Properties of Thermally Thin Thermoplastics - The Effectiveness of Inert Additives in Reducing Flammability. Polymer Degradation and Stability, 54(2-3):255-267, 1996.