The invention relates to a fire
threshold energy analysis and prediction method for
solid combustible materials under strong explosion fireball heat
radiation, and aims to solve the problems that in the prior art, a fire
threshold energy analysis and prediction method for
solid combustible materials under a strong explosion fireball heat
radiation scene is not systematic enough, the prediction result is not high in reliability, and the prediction cost is low. And actual requirements are difficult to meet. Comprising the following steps: S1, establishing a
heat transfer-
pyrolysis numerical calculation model under
thermal radiation loading of the
solid combustible; s2, obtaining thermophysical parameters, surface
reflectivity parameters,
pyrolysis kinetic parameters and
pyrolysis reaction
latent heat of the solid combustible; s3, determining the ignition characteristic temperature and the critical pyrolysis gas
mass flow rate of the solid combustible; and S4, based on a
heat transfer-pyrolysis numerical calculation model and the material parameters determined in the step S2, performing numerical
simulation on the
heat effect process of the solid combustible, and performing iterative calculation in combination with the ignition characteristic temperature determined in the step S3 and the critical pyrolysis gas
mass flow condition to determine the strong explosion fireball heat
radiation incident energy corresponding to solid combustible ignition. Therefore, fire
threshold energy analysis and prediction under the
thermal radiation of the specific solid combustible strong explosion fireball are completed.