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Temperature Field Evolution in Wood Samples During the Flame Spread Experiments

Lucie Hasalová, Petr Vaněk, Milan Jahoda
Transactions of the VSB - Technical University of Ostrava, Safety Engineering Series
2014, Volume 9, Issue 1, Pages 16-24
Doi: 10.2478/tvsbses-2014-0003
Vertical, horizontal and 45° upward flame spread experiments over the small scale beech and pine wood samples were performed. Wood samples were of two geometries - square cross section prisms (15 x 15 mm) and a thin rectangular cross section prisms (5 x 40 mm) - and of three different lengths - 10, 15 and 30 cm. Samples were ignited by a heptane source fire extinguished immediately when the wood samples ignited. During the flame spread an internal temperature profiles along the centreline of the samples were measured by a set of thermocouples. Flame spread was observed in all sample positions except the horizontal orientation of the beech and pine square prism samples. Experimental data will serve for a validation of the pyrolysis models in the Computational Fluid Dynamics (CFD) flame spread models.
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