Last Updated Fri, 05/24/2024 - 23:46
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… to investigate the near exit jet behavior of high pressure hydrogen release into quiescent ambient air through different … of release geometry on the behavior and development of hydrogen jet issuing from non-axisymmetric (elliptical) and … equation is applied to calculate the concentration of hydrogen-air mixture. The Abel-Nobel equation of state is …
Last Updated Fri, 05/24/2024 - 23:46
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… that the model of Bauwens et al. (2012) predicts well for hydrogen concentration between 16% and 21% and in the … model of Molkov et al. (2015) is found to work well for hydrogen concentrations between 10% and 30% without … of applicability and can hardly be used for vent sizing of hydrogen-air deflagrations. Overall, the accuracy of all the …
Last Updated Sat, 11/04/2017 - 04:27
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… We have revisited hydrogen behavior in Fe-Ni alloys with the tritium evolution … to the tritium evolution curve from disk shaped samples, hydrogen retention and apparent diffusion coefficients in … the alpha' matrix and must be very important to understand hydrogen embrittlement and tritium safety handling. (C) 2008 …
Last Updated Fri, 05/24/2024 - 23:46
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… An example of the application of thismethodology for hydrogen releases in three hypothetical obstructed areas with … presented. The severity of the blast effect of unconfined hydrogen explosions is shown todepend strongly on the level … … Evaluation of Safety Distances Related to Unconfined Hydrogen Explosions-Paper …
Last Updated Fri, 05/24/2024 - 23:46
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… As hydrogen fuel cell vehicles become more widely adopted by … vehicles require high-pressure (either 350 or 700 bar) hydrogen, and therefore the refueling infrastructure must … … Validated Equivalent Source Model for an Underexpanded Hydrogen Jet …
Last Updated Fri, 03/03/2023 - 03:49
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… We are developing rugged and reliable hydrogen safety sensors that can be easily manufactured. … by end users. … Development of Low Cost Sensors for Hydrogen Safety Applications …
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 …
Last Updated Sat, 11/04/2017 - 04:27
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… based on fossil fuels, namely the transport sector. Hydrogen and hydrogen enriched fuels can provide an improvement in the Future. If hydrogen is produced from renewable sources, it will also …
Last Updated Sat, 11/04/2017 - 04:27
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… This study is about the qualitative safety assessment for hydrogen gas filling facilities in Korea operating with … FMEA and HAZOP then by referring to P&ID and PFD of hydrogen dispenser, thereby examining the dangerousness of … and problems of the operation. … Safety Assessment for Hydrogen Gas Filling Facilities(One-Bank) …
Last Updated Fri, 05/24/2024 - 23:46
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… from experiments on gas explosions in inhomogeneous hydrogen-air mixtures. The experimental channel is 3 m with a … section of 100 mm by 100 mm and a 0.25 mm ID nozzle for hydrogen release into the channel. The channel is open in one … 1085 … Dynamic Load Analysis of Explosion in Inhomogeneous Hydrogen-air Mixtures …
Last Updated Sat, 11/04/2017 - 04:27
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… in pipelines on long distance. Up to now, the existing hydrogen pipelines have used lower-strength steels to avoid any hydrogen embrittlement. The CATHY-GDF project, funded by the … industrial X80 grade for the transmission of pressurized hydrogen gas in large diameter pipelines. This project has …
Last Updated Fri, 05/24/2024 - 23:46
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… Especially during the on-goingintroduction of new hydrogen technologies or applications, as e.g. hydrogen refueling stations, this techniqueis considered a … themethodology and thereafter the use of such diagrams for hydrogen technologies are demonstrated. … 1085 … …
Last Updated Fri, 05/24/2024 - 23:46
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… Hydrogen generation by the reaction of pure Al powder in … on Al particle surfaces. … 1085 … Catalysis of Oxides in Hydrogen Generation by the Reaction of Al With Water …
Last Updated Fri, 05/24/2024 - 23:46
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… propensity of different compositions of mixtures of hydrogen, propane and methane with air has been evaluated … reveals that while a stoichiometric mixture of hydrogen-air has an ignition delay one and two orders of … magnitude shorter than, respectively, propane and methane, hydrogen also has a parameter smaller by respectively one and …
Last Updated Sat, 11/04/2017 - 04:27
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… Microbe-based hydrogen production is a potentially cost-effective, … non-polluting approach to the production of hydrogen. Research efforts are underway to identify, isolate, … microbial strains which facilitate direct sunlight-to-hydrogen conversion. These efforts are hampered by a lack of …
Last Updated Fri, 05/24/2024 - 23:46
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… Experimental data obtained for hydrogen mixtures in a room-size enclosure are presented and … chamber or at the center of the wall opposite the vent. Hydrogen-air mixtures with hydrogen concentrations close 18%2vol., stoichiometric …
Last Updated Wed, 06/19/2024 - 06:51
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… and engineers are working with reactive metal-hydride hydrogen storage materials in their laboratories. Activities … economically favorable on-board and off-board storage for hydrogen-powered vehicles and stationary applications of the … materials must be able to quickly and efficiently absorb hydrogen during the fueling process and then release it …
Last Updated Sat, 11/04/2017 - 04:27
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… studies in Iceland considering electrolytically produced hydrogen as a candidate fuel to replace imported oil. A part … is an ongoing attempt to run an IC engine on low pressure hydrogen. The paper describes this attempt. The main results obtained are that hydrogen admission and ignition in a pre-chamber is a …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen pipeline network operation is important for balancing the hydrogen producing and consuming unit onsite. To make the … equilibrium constraints (MPECs) for scheduling of hydrogen pipeline network between hydrogen producing and …
