Natural ventilation of hydrogen during a leak in a residential garage

In the context of climate changes becomes problematic when fossil fuel reserves are dwindling and when their prices rise sharply, the possibility of using hydrogen as an energy carrier has increasingly caught interest of both public and government policy makers in recent times due to the concerns about the possible impact of greenhouse gases and the finite nature of fossil fuel reserves. Hydrogen is much lighter than air and therefore, has very strong buoyancy that will quickly remove the gas in an unconfined situation. However, any leakage of hydrogen in confined space frequented by motor vehicles such as parking garages and tunnels poses a significant hazard. In this theme, this paper gives more information about the behavior and natural ventilation of hydrogen during an accidental leak inside a residential garage. The hydrogen cloud shape and size were predicted using FLUENT software. This study investigated the influence of building geometry and position, shape and size of openings ventilation on the formation of combustible hydrogen-air clouds.