Decomposition of intumescent coatings: comparison between numerical method and ...

• Author(s): Mesquita, L.M.R. ; Piloto, P.A.G. ; Vaz, M.A.P. ; Pinto, T.
• Date: 2009
• Persistent ID: http://hdl.handle.net/10198/1711
• Origin: Biblioteca Digital do IPB
• Subject(s): Fire protection; Intumescent coatings; Cone calorimeter; Char formation; Heat transfer; Energy equation; Thermal decomposition; Porosity; Arrhenius equation; Activation energy
• Document Type: Article
• Language: English

Description

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.