Results 41 to 50 of about 357,140 (159)

Evaluation of Liquid Hydrogen/Hydrogen Peroxide Propellant Combination for Advanced Launch Vehicle Upper Stage

open access: yesAerospace
Hydrogen peroxide (H2O2) is a dense, storable oxidizer, but its suitability for high-energy upper stages is limited. This study evaluates liquid hydrogen–hydrogen peroxide (LH2/H2O2) as an alternate propellant using KSLV-II as the reference vehicle ...
Min-Seon Jo, Jeong-Yeol Choi
doaj   +1 more source

Cryogenic Tribology of High-Speed Bearings and Shaft Seals in Liquid Hydrogen

open access: yesTribology Online, 2011
Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines.
Masataka Nosaka
doaj   +1 more source

Hydrogen storage in liquid hydrogen carriers

open access: yesProgress in Energy, 2023
Efficient storage of hydrogen is one of the biggest challenges towards a potential hydrogen economy. Hydrogen storage in liquid carriers is an attractive alternative to compression or liquefaction at low temperatures. Liquid carriers can be stored cost-effectively and transportation and distribution can be integrated into existing infrastructures.
Ulucan, Tolga Han   +22 more
openaire   +2 more sources

Assessment of Boil-Off Losses and Their Cost Implication during Liquid Hydrogen Tank Filling with and without Precooling

open access: yesEnergies
During liquid hydrogen bunkering into a cryogenic tank, boil-off losses occur due to the high thermal gradient between liquid hydrogen and the warm surface of the tank. This leads to gaseous hydrogen release. Such losses constitute a significant drawback
Bright Ebikemefa Okpeke   +3 more
doaj   +1 more source

Feasibility Study on Production of Slush Hydrogen Based on Liquid and Solid Phase for Long Term Storage

open access: yesEnergies
To achieve net-zero objectives, the expansion of renewable energy sources is anticipated to be accompanied by an increased use of carbon-free fuels, such as hydrogen.
Sungho Park   +5 more
doaj   +1 more source

Hydrogen Adsorption on Solid and Liquid Surfaces of Ga–Sn and Ga–In

open access: yesAdvanced Materials Interfaces
Dynamic liquid metal catalysts have remarkable activity and selectivity toward certain reactions, such as carbon dioxide reduction. The surface hydrogen coverage may play a role in this, including controlling competing reactions such as hydrogen ...
Charlie Ruffman   +3 more
doaj   +1 more source

An Experimental Study on the Large-Volume Liquid Hydrogen Release in an Open Space

open access: yesApplied Sciences
Liquid hydrogen is one of the high-quality energy carriers, but a large leak of liquid hydrogen can pose significant safety risks. Understanding its diffusion law after accidental leakage is an important issue for the safe utilization of hydrogen energy.
Zhao Zhang   +11 more
doaj   +1 more source

Development Status and Challenges of Thermal Insulation in Large Liquid Hydrogen Storage Tanks

open access: yesZhileng xuebao
Hydrogen energy, as a carbon-free energy source and a pivotal technology for attaining the goals of "carbon peaking and carbon neutrality", has attracted considerable global interest in recent years.
Yang Haonan, Yin Liang, Ju Yonglin
doaj  

Perspective for the Safe and High-Efficiency Storage of Liquid Hydrogen: Thermal Behaviors and Insulation

open access: yesHydrogen
Liquid hydrogen is a promising energy carrier in the global hydrogen value chain with the advantages of high volumetric energy density/purity, low operating pressure, and high flexibility in delivery.
Haoren Wang   +4 more
doaj   +1 more source

Liquid Hydrogen: A Mirage or Potent Solution for Aviation's Climate Woes? [PDF]

open access: yesEnviron Sci Technol, 2023
Miller TR, Chertow M, Hertwich E.
europepmc   +1 more source

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