Fire Safety Science Digital Archive

This experimental study is part of a major study on re-ignition characteristics of wood-based materials. The main objective of this study was to investigate the role of wood porosity on its re-ignition characteristics. For this purpose, experiments were carried out on a set of wood samples with various levels of porosity at heat flux level between 40 – 60 kW.m-2. Experiments were conducted in a modified mass-loss cone calorimeter equipped with a water spray system. Results of this study were consistent with our previous experimental data on surrogate ceramic samples revealing that the effect of porosity on the re-ignition delay time was significant at all heat flux levels particularly those in excess of 50 kW.m-2.