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DOE OSTI · 2585576

Liquid Hydrogen Pooling and Vaporization Experiments

Hecht, Ethan Starling [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)]
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Abstract

A comprehensive investigation into the pooling and vaporization of liquid hydrogen spills onto concrete and steel surfaces in a steady cross-wind is presented in this work. This is the first instance of liquid hydrogen pooling and dispersion in a steady environment. A high-capacity fan in a large tunnel was used to generate the steady cross-winds while spilling roughly 10-20, or 40 l/min of liquid hydrogen onto substrates. Temperature and extractive concentration measurements were made, in addition to visible and infrared imaging, to understand development of the pool and down-wind dispersion of the vaporized hydrogen. Overall, the results enhance the understanding of liquid hydrogen pooling and dispersion dynamics and provide critical data for validating models of pooling and vapor dispersion under various conditions.

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Hecht, Ethan Starling [Sandia National Laboratories (SNL-CA), Livermore, CA (United States)]. 2025-07-01. Liquid Hydrogen Pooling and Vaporization Experiments. https://doi.org/10.2172/2585576

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