Abstract
Toxic emissions from pinewood crib fires were determined using heated FTIR gas analysis from a 5 m3 compartment fire with an air opening equivalent to 5% of the compartment cross-sectional area (V2/3) in the floor of the compartment and a vent in the ceiling layer, with the air inlet controlling the flow. A 20 mm square pine wood crib size of 400 × 400 × 260 mm was investigated. The crib was ignited using a small ethanol pool fire. The flaming fire had a peak HRR of 40 kW and average ceiling temperature of 400 °C. The fire was lean overall at the peak HRR and the fire self-extinguished through lack of air with subsequent smouldering combustion. In spite of the lean combustion in the fire, very high toxic emissions were determined with an FEC LC50 of >6. The peak toxicity occurred just before the fire self-extinguished and the key toxic emissions were CO and formaldehyde for deaths, while formaldehyde and acrolein were the most important for impairment of escape.
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Acknowledgments
The Petroleum Technology Development Fund, Nigeria and the University of Maiduguri are thanked for sponsoring the PhD of Bintu G. Mustafa.
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Mustafa, B.G., Zahari, R., Zeng, Y., Mat Kiah, M.H., Andrews, G.E., Phylaktou, H.N. (2020). Pine Wood Crib Fires: Toxic Gas Emissions Using a 5 m3 Compartment Fire. In: Makovicka Osvaldova, L., Markert, F., Zelinka, S. (eds) Wood & Fire Safety. WFS 2020. Springer, Cham. https://doi.org/10.1007/978-3-030-41235-7_21
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DOI: https://doi.org/10.1007/978-3-030-41235-7_21
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