Results 31 to 40 of about 357,140 (159)

Hydrogen Bonding in Liquid Ammonia

open access: yesThe Journal of Physical Chemistry Letters, 2022
The nature of hydrogen bonding in condensed ammonia phases, liquid and crystalline ammonia has been a topic of much investigation. Here, we use quantum molecular dynamics simulations to investigate hydrogen bond structure and lifetimes in two ammonia phases: liquid ammonia and crystalline ammonia-I.
Aravind Krishnamoorthy   +9 more
openaire   +2 more sources

Hydrogen-Powered Aviation—Design of a Hybrid-Electric Regional Aircraft for Entry into Service in 2040

open access: yesAerospace, 2023
Over the past few years, the rapid growth of air traffic and the associated increase in emissions have created a need for sustainable aviation. Motivated by these challenges, this paper explores how a 50-passenger regional aircraft can be hybridized to ...
Jona Eissele   +6 more
doaj   +1 more source

Research progress of annulus insulation technology for cryogenic liquid hydrogen pipelines

open access: yesYou-qi chuyun
[Objective] Liquid hydrogen has garnered significant interest for its high volumetric density and hydrogen purity. However, it easily evaporates during transportation due to its low boiling point, thus causing hydrogen loss.
NIU Shuaishuai   +5 more
doaj   +1 more source

Analysis of liquid hydrogen power systems for near space unmanned aerial vehicles

open access: yesHangkong gongcheng jinzhan
For near space unmanned aerial vehicles(NSUAVs), efficient power type is the key to support their long flights. It is considered that the "airborne liquid hydrogen storage + hydrogen fuel cell" scheme is in line with the trend of NSUAVs' greater ...
GAO Yanfeng   +4 more
doaj   +1 more source

A Numerical Investigation of Flow Characteristics in a Cryogenic Perforated Plate Flowmeter for Vertical Pipe Applications

open access: yesEnergies
To address the research gap regarding the flow characteristics of cryogenic perforated plate flowmeters in vertical pipes and to enhance measurement reliability in challenging environments, this study investigates the flow characteristics of liquid ...
Yihan Tian   +5 more
doaj   +1 more source

Underground Hydrogen Storage: Comparison of High-pressure Hydrogen, Liquid Hydrogen, and Ammonia [PDF]

open access: yes대한환경공학회지
One of the alternatives for effective storage of irregularly produced renewable energy is hydrogen energy. In order to realize a hydrogen-based society, not only environmentally friendly production of hydrogen but also effective storage is very important.
Yumin Park   +4 more
doaj   +1 more source

A liquid-hydrogen Čerenkov counter [PDF]

open access: yesNuclear Instruments and Methods, 1964
Abstract Two models of a liquid-hydrogen Cerenkov counter have been constructed and tested. The first served as a prototype and was used to demonstrate the feasibility of the design concept and to show that liquid hydrogen does not give scintillation light of intensity comparable to that of Cerenkov light.
Zipi, T.F.   +3 more
openaire   +2 more sources

Storage of liquid hydrogen in natural zeolite [PDF]

open access: yesActa Montanistica Slovaca, 2015
When producing and utilizing hydrogen, its storage is one of the biggest problems. Hydrogen, as a gas, is extremely fluid with very low specific weight. Moreover, at a certain rate, the hydrogen-oxygen mixture is explosive.
Pavol Rybár   +4 more
doaj   +1 more source

Thermo-Fluid Dynamics Modelling of Liquid Hydrogen Storage and Transfer Processes

open access: yesHydrogen
The use of liquid hydrogen (LH2) as an energy carrier is gaining traction across sectors such as aerospace, maritime, and large-scale energy storage due to its high gravimetric energy density and low environmental impact. However, the cryogenic nature of
Lucas M. Claussner   +2 more
doaj   +1 more source

A study on hydrogen isotopes transport in a liquid metal GaInSn by plasma-driven permeation method

open access: yesNuclear Materials and Energy, 2017
The application of liquid metals such as gallium, tin and lithium as plasma-facing materials is a potential means to resolve the technical issues associated with power exhausting and particle handing in magnetic fusion devices.
Hailin Bi   +3 more
doaj   +1 more source

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