Last Updated Sat, 11/04/2017 - 04:27
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… The storage of hydrogen in a compressed gaseous form offers the simplest … and has become the most popular and most highly developed hydrogen storage method. Hydrogen storage vessels are the key equipment of hydrogen …
Last Updated Fri, 05/24/2024 - 23:46
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… To advance hydrogen into the energy market, it is necessary to consider … for scenarios that are complicated by accidental hydrogen release mixing with other combustible hydrocarbon … effect of mixing the hydrocarbon and inert gas into the hydrogen flame on the kinetic mechanisms, the laminar burning …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen is looked upon as the next generation clean energy … search for an efficient material and method for storing hydrogen has been pursued relentlessly. Improving hydrogen storage capacity to meet DOE targets has been …
Last Updated Sat, 11/04/2017 - 04:27
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… to determine the critical concentrations of helium making hydrogen-oxygen nonflammable under various volume fraction ratios of hydrogen and oxygen. Tests were conducted for three volume fraction ratios of hydrogen and oxygen 2:1, 1:1 and 1:2, at the initial …
Last Updated Fri, 05/24/2024 - 23:46
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… and modelling of combustion phenomena relevant to hydrogen-air vented deflagrations and unique large-scale … carried out by different research groups. The focus is on hydrogen-air deflagrations in low-strength equipment and … mechanism stemming from the preferential diffusion of hydrogen in air in stretched flames; growth of the fractal …
Last Updated Fri, 05/24/2024 - 23:46
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… Milestones 2025 Fuel cells for electric vehicle drives and hydrogen infrastructure for comprehensive, emission-free mobility, with more than 500 public hydrogen fuelling stationsnationally, over half a million … line service operation within the public transport system Hydrogen generation from renewable energies and integration …
Last Updated Sat, 11/04/2017 - 04:27
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… instabilities on the ignition process of pressurized hydrogen jets which are released into oxidizer environments. … The experiments were conducted in a shock tube where hydrogen gas is shock-accelerated into a partly confined … from most practical applications where high pressure hydrogen is released into air, the results may be applicable …
Last Updated Sat, 11/04/2017 - 04:27
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… Resolving hydrogen related safety issues, pertaining to nuclear reactor … of research world over for the past decade. The studies on hydrogen transport behavior and development of hydrogen mitigation systems are still being pursued actively …
Last Updated Sat, 11/04/2017 - 04:27
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… was tested for the first time with mixtures of methane and hydrogen. Short contact time CPO experiments were run to … NOx formation. … HYBRID CATALYTIC COMBUSTION OF METHANE/HYDROGEN MIXTURES …
Last Updated Fri, 05/24/2024 - 23:46
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… This study addresses one of knowledge gapsin hydrogen safety science and engineering, i.e. apredictive … data on a blast wave decay after rupture of a stand-alone hydrogen tank and atank under avehicle.In this study, the … model isappliedas a safetyengineering tool to fourtypical hydrogen storage applications,includingon-board vehicle …
Last Updated Fri, 05/24/2024 - 23:46
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… Numerical simulations have been carried out for pressurised hydrogen release through a nozzle in a simulated vehicle … in the experimental paper. The average mass fraction of hydrogen was monitored at the location of sparking which represents the rate at which hydrogen was accumulating in the confined environment. …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen jet flames resulting from ignition of unintended … exposure to jet flames is to incorporate barriers around hydrogen storage and delivery equipment. While reducing the … of the concentration field from deflected unignited hydrogen releases. The various barrier designs are evaluated …
Last Updated Sat, 11/04/2017 - 04:27
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… investigations were carried out to assess the use of hydrogen in a gasoline direct injection (GDI) engine. Injection of small amounts of hydrogen (up to 27%2on energy basis) in the intake port … behavior A realistic application would make use of hydrogen-containing reformer gas produced on board the …
Last Updated Fri, 05/24/2024 - 23:46
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… (FP) for Research and Technology Development Projects on hydrogen safety in FP5 and FP6 European Hydrogen and Fuel Cell Technology Platform - H2 safety, … in FP7 … 1085 … European Initiatives in the field of Hydrogen Safety, Regulations, Codes and Standards …
Last Updated Fri, 05/24/2024 - 23:46
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… al. have been concentrated on mitigation measures against hydrogen risk. The authors have proposed installation of … or around the essential equipment in order to contain hydrogen flames. Preliminary tests were conducted which … size. … 1085 … Numerical Simulation of the Laminar Hydrogen Flame in the Presence of a Quenching Mesh …
Last Updated Fri, 05/24/2024 - 23:46
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… A crucial problem of new hydrogen technologies is the lightweight and also safe storage of acceptable amounts of hydrogen for portable or mobile applications. A new and … ensure safe infusion, storage, and controlled release of hydrogen gas, although storage pressures up to 1200 bar are …
Last Updated Fri, 05/24/2024 - 23:46
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… all major automotive companies are currently developing hydrogen-powered vehicles.The vast majority of them employ compressed hydrogen tanks and components as a means ofstoring the fuel onboard. Compressed hydrogen vehicle fuel systems are designed in the sameway as …
Last Updated Fri, 05/24/2024 - 23:46
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… the complete spatial and temporal ignition evolution of hydrogen combustible mixtures of different concentrations is … chain-branching mechanism which appropriately mimics hydrogen combustion. … 1085 … Shock-Initiated Ignition for Hydrogen Mixtures of Different Concentrations …
Last Updated Sat, 11/04/2017 - 04:27
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… Gaseous hydrogen is an alternative to petroleum-based fuels, but it … commonly used for containment and distribution of gaseous hydrogen, albeit under conservative operating conditions … (i.e., large safety factors) to mitigate so-called gaseous hydrogen embrittlement. Economical methods of distributing …
Last Updated Sat, 11/04/2017 - 04:27
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… The dispersion characteristics of hydrogen leaking through a small hole from a high-pressure … to develop guidelines for determining safety distances for hydrogen stations. Tests were carried out for leaking holes … of 100, 200, 300 and 400 bar. For these realistic hydrogen leaking conditions, the Froude numbers are so large …
