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Simulations of Hydrogen Releases from a Storage Tanks- Dispersion and Consequences of Ignition


We present results from hydrogen dispersion simulations from a pressurized reservoir at constant flow rate, in the presence and absence of a wall. The dispersion simulations are performed using a commercial finite volume solver. Validation of the approach is discussed. Constant concentration envelopes corresponding to the 2%, 4% and 15% hydrogen concentration in air are calculated for a subcritical vertical jet and for an equivalent subcritical horizontal jet from a high pressure reservoir. The consequences of ignition and the resulting overpressure are calculated for subcritical horizontal and vertical hydrogen jets and in the latter case, compared to available experimental data.

Related subjects: Safety
Countries: Canada ; France ; United States

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