- Author
- Butler, K. M.
- Title
- Mixed Layer Pyrolysis Model for Polypropylene.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Book or Conf
- Fire Safety Science. Proceedings. Sixth (6th) International Symposium. International Association for Fire Safety Science (IAFSS). July 5-9, 1999, Intl. Assoc. for Fire Safety Science, Boston, MA, Poitiers, France, Curtat, M., Editors, 313-324 p., 2000
- Keywords
- fire research | fire safety | fire science | polypropylene | pyrolysis models | gasification | equations
- Identifiers
- in-depth gasification model; mixed layer
- Abstract
- A one-dimensional model describing the melting, degradation, and bubbling behavior of polypropylene exposed to a high heat flux is presented. The region of vigorous bubbling observed in experiment is represented as a mixed layer of uniform temperature. Temperature profiles and thicknesses of solid, melt, and mixed layers are determined by solving conservation equations supplemented by simple models of turbulent mixing. The results of the model with and without a mixed layer are compared with experiment.