Last Updated Sat, 11/04/2017 - 04:27
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… a key issue of safety. The catalytic oxidation of isotopic hydrogen including tritium is a conventional method for … Particularly, the metal honeycomb has an advantage for hydrogen gas oxidization at room temperature because it is … of high performance catalyst for oxidation of tritiated hydrogen and methane gases …
Last Updated Sat, 11/04/2017 - 04:27
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… were performed simulating tunnel accidents with a hydrogen powered vehicle. The investigated scenarios assume … times. Design measures can be used to limit the risk of hydrogen driven vehicles to the level of gasoline cars. … … and safety evaluation of tunnel accidents with a hydrogen powered vehicle …
Last Updated Fri, 05/24/2024 - 23:46
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… Hydrogen stations and supply systems for public transport … in the user interface than in the other parts of the hydrogen refuellingstation (HRS). This might be expected, … closely. So far the quality and safety approach to hydrogen refuelling stationshas been based on industrial …
Last Updated Fri, 05/24/2024 - 23:46
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… of University of Pisa (Italy) a pilot plant called HPBT (Hydrogen Pipe Break Test) was built in cooperation with the … tests. The plant has been used to carry out experiments of hydrogen release and its ignition. During the experimental … framework arranged to prevent fire and applied to hydrogen. This study is focused on hydrogen concentration as …
Last Updated Sat, 11/04/2017 - 04:27
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… At present, the hydrogen vehicles technology appears to have future … station. This one presents safety challenges due to the hydrogen chemicophysical characteristics. So, to avoid … safety analyses of a high-pressure storage equipment in hydrogen gas refuelling station have been carried out by the …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen gas leaking from a hydrogen-powered vehicle in a residential garage may form a … relationship between leak rate, ventilation design, and hydrogen concentration through laboratory testing, an … recommendations. (C) 2009 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights …
Last Updated Sat, 11/04/2017 - 04:27
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… This paper demonstrates a new kind of hydrogen sensor using palladium (Pd) nanowires. Hydrogen sensors using Pd metal have usually been utilizing … the incremental change in electrical resistance of Pd upon hydrogen incorporation. Unlike the conventional Pd hydrogen …
Last Updated Sat, 11/04/2017 - 04:27
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… by nitrogen adsorption technique. Kinetics of hydrogen cyanide adsorption were explored using charcoal … charcoal cloth for the treatment of air polluted with hydrogen cyanide …
Last Updated Fri, 05/24/2024 - 23:46
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… investigated is geometrically simple: a vertical round hydrogen jet in a square box. Nevertheless, modeling aspects … … Some issues concerning the CFD modelling of confined hydrogen releases …
Last Updated Sat, 11/04/2017 - 04:27
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… quality experimental data for swirling and nonswirling hydrogen jet diffusion flames are reported. Previous studies … … An Experimental and Computational Study of Swirling Hydrogen Jet Diffusion Flames …
Last Updated Fri, 05/24/2024 - 23:46
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… of Computational Fluid Dynamics (CFD) modeling of hydrogen releases and dispersion inside a metal container … vehicles discharge flammability and potential build-up of hydrogen for the development of test procedures for the … Safety SAE J2578. The experimental setup included 9 hydrogen detectors located in each corner and in the middle …
Last Updated Sat, 11/04/2017 - 04:27
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… The hydrogen economy presents a compelling future energy picture, … the transportation sector. The obstacles, such as low-cost hydrogen production, lack of high-density hydrogen storage approaches, costly infrastructure, and …
Last Updated Wed, 05/08/2024 - 21:31
FAQ
… but as a precaution, any material that could be exposed to liquid air must be compatible for both oxygen and cryogenic … formation due to failure of the insulation on a liquefied hydrogen system and what measures can be taken to minimize …
Last Updated Sat, 11/04/2017 - 04:27
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… demonstration project worldwide, the global number of hydrogen refueling stations has increased rapidly in recent years. The external safety of hydrogen refueling stations has always been a public concern … harm effect distances of severe accidents for a gaseous hydrogen refueling station. First, different accident …
Last Updated Fri, 05/24/2024 - 23:46
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… occurred, were measured. The flammable mixtures were hydrogen-air mixtures at several equivalence ratios and … The intensities of blast waves by the explosions of hydrogen-air mixtures were much larger than that of … … 1085 … Blast Wave From Bursting Enclosure with Internal Hydrogen-Air Deflagration …
Last Updated Fri, 05/24/2024 - 23:46
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… Delayed explosions of accidental high pressure hydrogen releases are an important risk scenario in safety … of the influence of obstacles on a delayed deflagration of hydrogen jets. The computational fluid dynamics (CFD) code … deflagration to detonation. … 1085 … Delayed Explosion of Hydrogen High Pressure Jets in a Highly Obstructed Geometry …
Last Updated Sat, 11/04/2017 - 04:27
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… When the ventopenings are 1%2of the total surface and hydrogen leakage 1%2 hydrogen concentration is around 0.1%2s increased from … When the vent openingsare 1%2of the total surface and hydrogen leakage 1%2 3%2 5%2 the steady state result of CFD, …
Last Updated Fri, 05/24/2024 - 23:46
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… involves flame acceleration and DDT in both homogeneous hydrogen-airmixtureas well as an inhomogeneous mixture with … the precursor inert shock wave with the wallclose to high hydrogen concentrationrather than with the obstacle. Some … they soon disappear after the flame passesthrough them. Hydrogen cannot be completely consumedespeciallyin the fuel …
Last Updated Sat, 11/04/2017 - 04:27
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… field-effect transistor (MISFET) hydrogen gas sensor has been proposed by Usagawa and Kikuchi … optimum Pt/Ti thickness and annealing conditions for most hydrogen safety monitoring sensor systems are obtained by … Si-MISFETs after 10 min of air-diluted 1000-ppm hydrogen exposure at 115 degrees C are reproducible and …
Last Updated Sat, 11/04/2017 - 04:27
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… One of the problems of the hydrogen systems' operational use is the ensuring of these systems' internal safety at hydrogen venting to atmosphere since, during the above … process, taking place at the nonstationary mode of gaseous hydrogen outflow to atmosphere in case of availability of …
