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Motel Tunnel Deflagration

Experiment ID Motel tunnel deflagration
Short Description Deflagration of a 30 % H2-air homogeneous mixture contained within a 37 m3 volume (1 kg H2) located at the centre of a 78.5 m long and 3.74 m2 cross-sectional area tunnel with and without obstacles, which represented a vehicle tunnel at about 1/5 scale.
What phenomena were studied Combustion and pressure wave propagation within the tunnel from centrally located ignition point in initially quiescent mixture.
What phenomena / effects can be studied Pressure dynamics near the tunnel end with and without vehicle models for 30 % H2-air homogeneous mixture.
Instrumentation Pressure transducers, video cameras to obtain flame contours.
Test variables Deflagration inside tunnel with/without vehicle models (BR = 0.03)
Data description / Data completeness Pressure dynamics at 34 m; overpressures at distances 1 m, 1.7 m, 2.2 m, 2.8 m, 3.6 m, 4.8 m, 6.2 m, 8 m, 105 m, 14 m, 18 m, 22 m, 30 m, 34 m.
Data availability Publicly available
Source of data / Reference
  1. Groethe, M., Merilo, E., Colton, J., Chiba, S., Sato, Y., and Iwabuchi, H., "Large-scale Hydrogen deflagrations and detonations", International Conference on Hydrogen Safety, Pisa, Italy, 8-10 September 2005. ISBN 88-8492-314-X
Why were chosen Large-scale experiment on hydrogen-air deflagration inside a tunnel, relevant to realistic H2 explosion scenario.
Relevance to the project purposes Relevant to IP2 "HyTunnel".
Experimental data
Results of simulations
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Page last modified on October 14, 2009, at 12:53 PM