- Author
- Vovelde, C. | Akrich, R. | Delfau, J.
- Title
- Thermal Degradation of Solid Materials Under a Variable Radiant Heat Flux.
- Coporate
- Centre de Recherches sur la Chimie de la Combustion et des Hautes Temperatures, C.N.R.S., Orleans, France
- Book or Conf
- Combustion Institute, Symposium (International) on Combustion, 20th. August 12-17, 1984, Combustion Institute, Pittsburgh, PA, Michigan Univ., Ann Arbor, 1647-1654 p., 1985
- Keywords
- thermal degradation | inert atmosphere
- Abstract
- Thermal degradation of PMMA and particle board subjected to a variable radiant heat flux, under an inert atmosphere has been studied. Two variable rates of the radiant heat flux have been used: 1.66 x 10-3 W/cm2-s and 3.33 x 10-3 W/cm2-s. Simultaneous measurements of the mass loss rate and the temperature profiles have been made. It has been shown that the experimental results can be correlated by using the variables: R = m"(Q" - Q"): mass loss rate per unit heat flux absorbed, and q" = l'(Q" - Q") x dt: heat accumulated in the solid. In term of these variables, a single curve for the two heating rates has been obtained. Moreover, these results are in close agreement and those obtained previously during constant heat flux experiments.