Modelling of liquid hydrogen spills

The objective of this work was to assess the ability of the cryogenic liquid spill models available to the Health and Safety Executive (HSE) to model spills of liquid hydrogen by using the new experimental data of Royle and Willoughby (2012). In order to meet this objective three main tasks were undertaken: - A brief literature review on modelling liquid hydrogen pool spreading. - Carry out modelling with GASP (Gas Accumulation over Spreading Pools) and compare results with the experimental measurement data taking into account issues specific to liquid hydrogen, including sensitivity to specific model parameters or modelling assumptions. - Provide recommendations on improvements that could be made to currently available models and also recommendations for further model validation data.

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