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http://dx.doi.org/10.7731/KIFSE.2014.28.1.044

Studies on the Morphology of Smoke Particles for Each Type of Fire by Using Steady State Tube Furnace  

Goo, Jaehark (Dept. of Fire Protection and Safety, Woosuk Univ.)
Publication Information
Fire Science and Engineering / v.28, no.1, 2014 , pp. 44-51 More about this Journal
Abstract
Smoke from fire is a mixture of combustion gases and particles which include micro-droplets formed from condensed organic vapors and carbonaceous agglomerates. The inhalation of smoke particles causes adverse health effects, and it is prerequisite for the hazard and risk analysis of the smoke particles to know how they behaviour in the respiratory tract. The characteristics of the absorption and adsorption of toxic gases and the amount and location of the particle deposition within the respiratory tract that determine the adverse health effects are related to the morphology and the size distribution of smoke particles. In the present work, as a preliminary study for the adverse health effects of smoke particles, the morphologies of the smoke particles from combustible materials were investigated for each fire stage: smouldering, well-ventilated flaming, small under-ventilated flaming, fully-developed under-ventilated fire. The steady-state tube furnace method given in ISO/TS 19700 was used for the generation of smoke particles. The fire stages were controlled by changing furnace temperature and equivalent ratio. The morphologies were analyzed by using Transmission Electron Microscope (Bio-TEM) by collecting the particles on TEM grids put on each stage of a cascade impactor.
Keywords
Smoke particle; Morphology; Fire stage; Tube furnace; ISO/TS 19700;
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