Explosion Modeling for Hydrogen and Hydrogen-Natural Gas Blends

The explosion behaviour of hydrogen differs qualitatively from natural gas, and this difference can change the outcome of facility siting studies directly. The laminar burning velocity of hydrogen is several times that of methane; as congestion and confinement increase, flame acceleration and the likelihood of deflagration-to-detonation transition also increase. Blends do not behave linearly: results close to methane are expected at low hydrogen fractions and close to hydrogen at high fractions, while the intermediate range needs test data.

According to the video description, the webinar covers H2 and H2/CH4 test results in open and confined/vented configurations, the modelling approaches and their effect on occupied building risk assessment. This is directly applicable for engineers doing QRA and explosion consequence analysis; when simple blast-load models calibrated for natural gas are adapted to hydrogen, the choice of flame speed and congestion parameters becomes critical.

The statement about more than 15 years of testing is the company's own claim. Published on a consultancy's channel, the talk may favour its own methodology; compare results with independent experiments.