This study evaluates a Computational Fluid Dynamics (CFD) model's ability to predict the flow fields and thermal behavior of liquid hydrogen (LH₂) during zero boil-off (ZBO) operation in the Ground Operations Demonstration Unit for Liquid Hydrogen (GODU-LH₂) tank at NASA's Kennedy Space Center. The model focuses on capturing natural convection and heat transfer effects driven by the Integrated...
Liquid hydrogen is considered as future energy carrier as well as preferred fuel for future mobility applications on the road, rail, sea and air. The expectation is that large amounts of liquid hydrogen will be transported intracontinentally or even intercontinentally in near future.
As typical for cryogenic fluids, the boil off gas can impact the economics of the transport chain...
The transition of the energy market to sustainable resources demands a variety of energy storage technologies. Existing systems propose energy storage from kWh to GWh levels, each with its strengths and limitations. The presented research proposes a novel energy storage method (patent pending) of cryo-adsorbed hydrogen energy storage (CAHES), aiming for large scale applications, in order of up...
Liquid hydrogen-fueled electric aircraft is a promising approach to achieving zero-emission aviation goals, particularly when combined with high-temperature superconducting (HTS) power device technology. Liquid hydrogen serves as an energy source and a cryogenic heat sink, enabling multiple high power-density superconducting devices and conventional components onboard the aircraft. Liquid...
The increased demand for hydrogen as an energy vector and storage medium drives the need for higher liquefaction capacities. However, the design of the necessary ortho-parahydrogen converters has long been associated with substantial uncertainty. Until now, the only available data on the activity of the standard catalyst, hydrous ferric oxide—commercially available as the “Ionex-Type O-P...
As the demand for climate-friendly mobility solutions increases, hydrogen stands out as a key enabler, especially in heavy-duty sectors like transportation and aviation. Liquid hydrogen, with its high energy density, holds significant promise for these industries. Many studies focus on the application of liquid hydrogen in these sectors. However, also the supporting infrastructure – including...
Responding to commercial space launch vehicle providers developing rocket engines fueled by liquefied natural gas (LNG) in recent years, NASA began exploring the so-called “weathering” of the cryogenic mixture—the preferential evaporation of lower boiling point constituents over time, leading to a change in the bulk liquid composition. Due to relatively long delays between launches...
Evaluating the boil-off rate (BOR) of liquefied natural gas (LNG) transported in cargo containment systems is crucial for assessing system performance. Research has focused not only on static cryogenic storage tanks but also on tanks under sloshing conditions. Numerical simulations have demonstrated that sloshing significantly affects the thermophysical processes and boil-off gas (BOG)...
