Charring Pyrolysis of Wood in Fires by Laser Simulation.
Lee-CK; Chaiken-RF; Singer-JM
16th Int'l Symp on Combustion Combustion Inst Pittsburgh Pennsylvania, 1977 :1459-1470
The energetics and rate of wood pyrolysis were studied at various fire-level heat fluxes utilizing a 250-watt co2-laser as the heat source. Essentially, one-dimensional heat and mass flow conditions were maintained which enabled a direct analysis of the measured spatial and temporal variations of temperature, gas pressure, mass, loss, and solid density in terms of localized heats of pyrolysis and rates of reaction. It is shown that the pyrolysis reaction is dependent on surface heat flux, and cannot be described adequately by a global single reaction. Also, there is evidence that the pyrolysis reaction is somewhat dependent on the structural properties of the wood which are anisotropic in nature.
16th Int'l. Symp. on Combustion; Combustion Inst., Pittsburgh, Pennsylvania, 1977, PP. 1459-1470