Optimizations of Charring Material Properties

초록

The genetic algorithm and its variation are selected to obtain fire properties of the solid charring material with relatively simple chemical structure described Arrhenius' equation. Pyrolysis is occurred by receiving the uniform radiative energy from external heat sources, and in this process the heat transfer through a specimen can be simplified by an unsteady 1-D problem. The objective(fitness) function for a optimization process is a function of surface temperature and pyrolysis mass loss rate. The estimated properties are conductivity of virgin and char, specific heat of virgin and char, density of char, pyrolysis energy, activation energy and its pre-exponential factor. The estimated properties using the inverse analysis based on the genetic algorithm and its variation show acceptable agreements with the reference values.