ABSTRACT
The increased relevance of liquefied natural gas (LNG) as a fuel for transportation systems has raised safety concerns. Pool fires of significant amount of LNG have been identified as the main scenario in case of accidental release of cryogenic liquid. Besides, large-scale experiments are discouraged due to the complexity, hazard and costs. Consequently, several numerical studies have been performed to this topic. Considering the nature of the investigated scenario, large eddy simulation (LES) models should be preferred. However, several simplifications, regarding natural gas composition, its combustion chemistry or turbulence sub-models, are often adopted. To this aim, a comprehensive numerical study on the effect of these assumptions on LNG pool fire characterization was conducted in terms of either temperature distribution or surface emitter power. The accuracy of the obtained data was evaluated by comparing numerical results with small-scale data from literature.
