Decomposition of Intumescent Coatings: Comparison between a Numerical Method and Experimental Results

L. M. R. Mesquita, P. A. G. Piloto, M. A. P. Vaz, T. M. G. Pinto

Abstract


An investigation of two different intumescent coatings used in steel fire protection has been performed to evaluate their efficiency. A set of experimental tests is presented. They were conducted in a cone calorimeter, considering different thicknesses and heat fluxes. Among other quantities, the steel temperature and the intumescence thickness variation were measured. A numerical model for the paint decomposition is also presented. Based on the intumescence experimental value, the model is able to provide a reasonably good prediction of the steel temperature evolution. 

Keywords


Fire protection; intumescent coatings; cone calorimeter; char formation; heat transfer; energy equation; thermal decomposition; porosity; arrhenius equation; activation energy

Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN 1210-2709 (Print)
ISSN 1805-2363 (Online)
Published by the Czech Technical University in Prague