Characterization of the burning behavior and gaseous emissions of pine needles in a cone calorimeter - FTIR apparatus

摘要

The paper presents flammability studies related with the combustion of Maritime pine needles (pinus pinaster, representative of Mediterranean vegetation) in a cone calorimeter (CC) under air atmosphere with piloted ignition and self-ignition for different heat fluxes, from 10 to 50 kW m(-2). The Main objective is to measure the yields of the gaseous emissions released during the experiments because one of the major risks during the fire is from the smoke and products of combustion. Identification of exhaust gaseous compounds and concentration measurements have been done by FUR, NDIR, chemiluminescence and paramagnetism gas analyzers for assessing the fire behavior and identifying the decomposition chemistry. Among the 15 different compounds simultaneously analyzed, the yields of CH4, CO2, CO, H2O, NO and O-2 have been quantified. HCN and light-weight hydrocarbons (C2H2, C2H4, C3H6 and C3H8) have been observed at low concentrations.