Conveners
C1Po3B - LH2 and LNG I: Safety
- Adam Swanger
- Wesley Johnson (NASA Glenn Research Center)
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Jorgen Depken (Institute for Maritime Energy Systems, German Aerospace Center (DLR), Dünebergerstraße 108, Geesthacht, 21502, Schleswig-Holstein, Germany)5/19/25, 2:00 PMPoster
To achieve the GHG reduction goals, hydrogen, Natural Gas and ammonia are considered as marine fuel in their liquefied form. Hydrogen and Natural Gas need to be liquified at cryogenic temperatures, whereas ammonia can be liquefied through the application of moderate pressure, approximately 10 bar, or through the reduction of temperature to approximately -33 °C. LNG is already employed in...
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Dr Ian Richardson (Plug Power)5/19/25, 2:00 PMPoster
As hydrogen continues to gain adoption as a global energy carrier, a renewed focus on hydrogen liquefaction technologies has emerged. The hydrogen liquefaction process requires extremely pure hydrogen feed gas to prevent the freeze out of impurities which can damage equipment. This study investigates the impact of temperature on the nitrogen adsorption performance of three widely used...
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Mr Yanwei Liang (Technical Institute of Physics and Chemistry, Chinese Academy of Sciences)5/19/25, 2:00 PMPoster
Hydrogen is widely regarded as an ideal clean and renewable energy source. Liquid hydrogen (LH2) is often used for storage due to its high energy density and suitability for various applications. However, in the event of an accidental LH2 release, the liquid rapidly and extensively evaporates into gaseous hydrogen, posing significant safety risks. To address these concerns, a study utilizing...
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Zachary Beadle (Washington State University)5/19/25, 2:00 PMPoster
Investments in the hydrogen economy, including the 7-billion USD Hydrogen Hub initiative, are poised to greatly expand employment in the hydrogen sector. Training and education at all levels will be essential for ensuring hydrogen fuel maintains an excellent safety record amid expanding use. However, few cryogenic hydrogen safety programs are available and little to no data on program...
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Suguru Takada5/19/25, 2:00 PMPoster
Liquid hydrogen tanks and transfer tubes have vacuum layer for thermal insulation which is usually enclosed by a sealing-off valve with rubber O-ring. The rubber O-ring must degrade with age and then air leak from the outside should be considered for long term operation over several years. However, most of the air content could be condensed by cryo-pumping effect and vacuum pressure may be...
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Alvaro Vidal5/19/25, 2:00 PMPoster
The present work presents the computational fluid dynamics (CFD) modeling of the complex phenomena occurring during a cryogenic liquid hydrogen release into quiescent air at standard ambient conditions. The RANS simulated case is a 2D axisymmetric domain presenting the pressurised LH2 reservoir and a large ambient domain. The thermodynamic properties are calculated using the NIST database for...
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