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International Heat Transfer Conference 13
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

MEASUREMENT OF SMOKE LAYER INTERFACE HEIGHT FOR HOT SMOKE TESTS IN TUNNELS

page 11
DOI: 10.1615/IHTC13.p26.230
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RESUMO

There are always problems in determining the smoke layer interface height in a long tunnel while carrying out hot smoke tests in assessing smoke management systems with small fires. An experimental technique using infrared is proposed to track the smoke layer interface positions in this paper.
Field measurements were carried out in a tunnel of length 96 m with diesel pool fires up to 1.5 MW. The results on tracking the smoke layer interface front were compared with the measurements by thermocouples and visual observations. This technique is demonstrated to be useful for tracking the smoke layer interface. The proposed method is suitable for hot smoke tests in evaluating smoke management systems in long tunnels with small fires.

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