Last Updated Sat, 11/04/2017 - 04:27
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… In severe accidents, hydrogen may be generated in a nuclear power reactor and may … conditions might be related to slight errors in the hydrogen concentration measurement, because the pressure seems to be very sensitive to the initial hydrogen concentration. These results suggest to reduce the …
Last Updated Sat, 11/04/2017 - 04:27
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… Operability of Very High Temperature Reactor (VHTR) hydrogen cogeneration systems in response to abnormal transients initiated by the hydrogen production plant is one of the important concerns … and safety points of views. The abnormal events in the hydrogen production plant could initiate load changes and …
Last Updated Fri, 05/24/2024 - 23:46
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… of the spontaneous ignition process of high-pressure hydrogen and hydrogen-methane mixtures injected into the air. The … conducted in a closed channel filled with air where the hydrogen or hydrogen-methane mixture was injected through …
Last Updated Fri, 05/24/2024 - 23:46
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… Nowadays 4 type hydrogen stations have been demonstrated in Korea for preparing hydrogen economy. This simulator is consists of virtual … modules and virtual accident scenarios of 4 type hydrogen stations. Virtual experience modules show the …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen is an attractive energy media for reducing the … have indicated the technical feasibility of the use of hydrogen as an energy carrier in the transport and energy … barriers which must be overcome or removed before hydrogen can be applied in energy systems. The project …
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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… of experience regarding the safe use and handling of hydrogen exists as a result of an extensive history in a wide variety of industrial and aerospace settings. Hydrogen Safety Best Practices (www.h2bestpractices.org) … and makes it publically available to those working with hydrogen and related systems, including those just starting …
Last Updated Fri, 05/24/2024 - 23:46
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… Hydrogen fuel cell vehicles are expected to come into … is therefore important to predict whetherrisk from leaked hydrogen accidents in tunnels can be avoided. CFD simulation was carried out on diffusion of leaked hydrogen in tunnels. Three areas of tunnels were chosen for …
Last Updated Fri, 05/24/2024 - 23:46
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… two numerical approaches for the modelling of vented hydrogen deflagrations: computation fluid dynamics (CFD) … (EMs). The study is a part of the project ‘Improving hydrogen safety for energy applications through pre-normative … predictions from EMs. The HySEA project focusses on vented hydrogen deflagrations in containers and smaller enclosures …
Last Updated Fri, 05/24/2024 - 23:46
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… The Hydrogen Safety, Codes and Standards program element of the … domestic and international codes and standards related to hydrogen technologies. The materials compatibility program … the technical basis for qualifying materials for hydrogen service, i.e., accommodating hydrogen embrittlement. …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The permitting process for hydrogen fueling stations varies from country to country. … to permit a facility. Current codes and standards for hydrogen facilities require certain safety features, specify equipment made of material suitable for hydrogen environment, and include separation or safety …
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 Tue, 11/19/2024 - 23:16
Document Library
… the effects of three potential failure conditions of hydrogen proton exchange (or polymer electrolyte) membrane … occurring. It is recommended that any installation of a hydrogen fuel cell system ensure that reactant supply gas … environment is monitored for any temperature or hydrogen gas concentration increases. … Abusive Testing of …
Last Updated Sat, 11/04/2017 - 04:27
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… Hydrogen is likely to be the most important future energy … renewable primary energy sources are used to produce the hydrogen. A safe transition to the use of hydrogen by members of the general public requires that the …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… 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 Fri, 05/24/2024 - 23:46
Bibliography Entry
… Safety is a high priority for a hydrogen refueling station.Here we propose a method to safely … and its practical applications are depicted. … 1085 … Hydrogen Refueling Stations: Safe Filling Procedures …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… in Europe by facilitating the safe introduction of hydrogen technologies and applications. An essential element … and public use are controlled to avoid that introducing hydrogen as energy carrier should pose unacceptable risk to … methodologies and collecting data for risk management of hydrogen infrastructure. Focus is laid on the development of …
Last Updated Sat, 11/04/2017 - 04:27
Bibliography Entry
… The dispersion characteristics of hydrogen leaking through a small hole from a high-pressure … a guideline in determining the safety distances for hydrogen stations. The studies were carried out for the … 300 and 400 bar. Because Froude numbers in these realistic hydrogen leaking conditions are very large, it is reasonable …
Last Updated Fri, 05/24/2024 - 23:46
Bibliography Entry
… The ignition limits of hydrogen/air mixtures in turbulent jets are necessary to establish safety distances based on ignitable hydrogen location for safety codes and standards development. … of ignition probability (PI). Recent studies in turbulent hydrogen jets showed that the envelope of ignitable gas …
